5/15/2012
Code Enforcement
Summary of key data points
Item
Permits:
-applied for
-issued
FY 2001
FY 2002
FY 2003
FY 2004
FY 2005
FY 2006
FY 2007
FY 2008
FY 2009
FY 2010
70,044
69,510
72,149
71,526
73,867
73,571
76,990
75,240
83,672
81,848
89,893
89,346
96,434
96,003
91,739
90,898
71,347
70,756
66,422
66,417
Fy2011 Fy2012(6)
70,238
69,886
34,704
34,604
Construction value permitted $3.0115B $2.6105B $2.4626B $2.9003B $3.2956B $3.9753B $4.5237B $4.708B $2.703B $1.6535B $1.7088B $1.2896B
number of FTE's
222
217
190
191
197
227
223
240
242
176
130
135
annual budget
$19.463M $20.945M $18.811M $18.308M $18.68M $21.231M $21.967M $25.62M $24.816M $17.551M $13.220M $14.243M
Inspections performed:
305,033
283,801
276,078
305,359
307,194
348,838
372,244
312,267
225,586
179,248
161,621
89,204
1.04
1.78
1.77
1.2
1.4
1.06
1.79
2.04
1.29
1.49
1.25
1.98
2.28
1.35
1.68
1.08
1.67
1.34
1.12
1.3
1.053
1.39
1.1
1.05
1.156
1.051
1.13
1.055
1.043
1.0717
1.06
1.0992
1.0417
1.023
1.0608
1.038
78
1.018
1.012
1.0475
1.05
1.259
1.03
1.03
1.12
1.078
1.243
1.098
1.083
1.146
1.143
1.18
1.2
1.19
1.175
Inspection response time in % completed 1st 24 hours::
-Bldg
not avail'l not avail'l not avail'l 95.45%
-Elec
"
"
"
79.22%
-Mech
"
"
"
84.40%
-Plbg
"
"
"
94.18%
88.58%(1)
-overall average
"
"
"
96.47%
75.44%
85.20%
94.99%
88.30%
97.69%
83.80%
95.75%
98%
93.64%
97.72%
94.28%
97.59%
98.22%
96.87%
97.73
95.6
98.58
98.96
97.44%
98.53
95.84
99.3
99.5
97.94%
98.23
89.52
98.38
98.74
95.22%
95.96
88.69
95.66
96.39
93.31%
93.58
91.33
90.98
91.81
92.00%
Inspection Pass Rate
-Bldg
-Elec
-Mech
-Plbg
-overall average
67.00%
73.56%
77.48%
82.72
73.98%
64.46%
66.70%
73.19%
76.83%
77.38%
83.47%
82.08%
84.98%
72.83% 77.09% (4)
68.72%
78.06%
82.28%
87.18%
78.44%
75.10%
80.57%
83.48%
88.33%
81.10%
81.03
85.16
86.47
91.9
85.57%
80.53
87.66
89.24
92.65
86.99%
80.37
86.87
89.46
93.8
86.90%
77.85
84.36
88.4
92.62
85.03%
87.66%
88.32%
92.10%
91.20%
94.32%
87.30%
95.08%
Inspection response time in days:
-Bldg
1.08
-Elec
2
-Mech
1.96
-Plbg
.1.19
-overall average
1.51
OnSchedule % on time/early
68.87%
71.51%
77.57%
82.07%
74.27%
69.44%
73.78%
77.20%
81.73%
74.69%
67.89%
73.85%
77.76%
82.81%
74.54%
not avail'l not avail'l 80.03%(2)
93.86%(3) 94.1%(5)
Note 1: this report started in January 2004, so these averages are for January thru June (1)
Note 2: OnSchedule started in March 2003, so this is the average for March thru June (2)
Note 3: OnSchedule on time early data for Sept 05 unavailable; Fy06 figure is 11 month average
Note 4: reflects change in inspection failure rate calculation methodology after Oct, 2005.
Note 5: averages July thru Jan data; in Feb, we began reporting by project size and individual discipline charts
Note 6: all numbers are for the 6 month period July 1, 2011 thru December 31, 2011
Note 7: not used
5/15/2012
Code Enforcement
Summary of key data points
Item
OnSchedule
-% on time/early (for BEMP)
-1st review count
-total BEMPFp cycles rev'wd
-1st review pass rate
-2nd review pass rate
FY 2001
FY 2002
not avail'l
not avail'l
not avail'l
not avail'l
not avail'l
not avail'l
not avail'l
not avail'l
not avail'l
not avail'l
FY 2003
FY 2004
FY 2005
FY 2006
FY 2007
FY 2008
FY 2009
FY 2010
80.03%(2a) 87.66% 88.32% 93.86%(3a) 94.1% (5) 92.10% 91.20% 94.32%
756 (4a)
1,898
2,411
2,460
1,994
1,955
1,740
1,474
2831(3a,4a) 9711 (3a) 9687 (3a) 12,780
12,060 10855(3a) 7111 (3a)
5343
54% (4a) 46% (2a) 50.3%
54.5%
50.3%
45.5%
57.3%
59.8%
88.3%
85.0%
83.0%
87.3%
89.5%
88% (4a) 85.3%(2a) 87.5%
OnSchedule booking lead times
-1-2 hour projects
not avail'l
-3-4 hour projects
not avail'l
-5-8 hour projects
not avail'l
-Express Review (sm/lg)
not avail'l
not avail'l 11.2 (4a,5a)
not avail'l note 1a
not avail'l not avail'l
not avail'l not avail'l
CTAC workloads and performance
-1st review pass rate
not avail'l
-% of OnSch total rev'w load not avail'l
-1st review count
not avail'l
-turnaround time (av'g)
not avail'l
not avail'l not avail'l 57.00% 59.00%
64.4%
61.5%
not avail'l not avail'l
32.0%
25.0%
34.0%
44.1%
not avail'l 401 (4a)
1010
848
1249
1606
not avail'l not avail'l not avail'l not avail'l not avail'l not avail'l
18 (5a)
note 1a
16 (1a)
17 (5a)
12.4 (5a)
note 1a
23 (1a)
20 (5a)
14.9
note 1a
25.6 (1a)
19
25.7
note 1a
35 (1a)
32
4.16
2
1.12
14.08
4.16
2.6
21.41
7.91
4
14/21.42 7.75/10.33 7.6/7.6
60.0%
46.8%
1713
5.25
Note 1a: in Fy06 & Fy07 we reported OnSchedule booking lead times in a 3-8 hour group
Note 2a: nine month numbers from Oct thru June, 2004
Note 3a: Data is from Approved as Noted Simplified BDC report from Business Objects (BEMP)
Note 4a: 4 month numbers from March thru June, 2003
Note 5a: based on information from BDC minutes, not all months reported, this is an average of the reported months
Note 6: all numbers are for the 6 month period July 1, 2011 thru December 31, 2011
Note 7: not used
70.00%
43.0%
1355
2.75
67.70%
46.0%
1247
3.36
Fy2011 Fy2012(6)
87.30%
1,998
6563
79.5%
93.3%
95.08%
1,135
3434
80.5%
90.0%
1.94
3.43
5.86
9.4/9.26
3.04
3.65
5.43
6/7.66
65.80%
45.8%
1278
3.66
69.33%
46.77%
741
2.8
Commercial Consistency
Land Use and Environmental Service Agency
(Code Enforcement)
1st Quarter Q&A 2012
General:
1.
(Q) Are there additional permits required other than building for a re-roof job?
(A) Yes, if there are power vents or “B” vents no a roof then a mechanical and
or electrical permit would be required. (01/04/2012)
2. (Q) Is a drip edge required to be installed on roofs?
(A) Yes, Section 1507.2.9.3 in both the 2009 and 2012 NCBC required a drip
edge to be installed on roofs. (01/04/2012)
3. (Q) Are inspections by the inspector required when special inspection are required?
(A) Special inspections conducted under the requirements of Chapter 17 of the
Building Code are to be in conjunction with inspections made by the code
official. They are not to take the place of the code official’s inspections..
(01/04/2012)
4. (Q) What are the requirements for accessibility in a complete change of occupancy?
(A) The requirements of section 3411.4.2 must be met in a complete change of o
occupancy. No, if the roof is only accessed for maintenance. This would be
covered by OSHA. (02/01/2012)
5. (Q) Can finger jointed studs be used in a rated wall assembly?
(A) Yes, provided that they are marked HRA for heat rated adhesive.
(02/01/2012)
6. (Q) When are elevators required for accessible means of egress and be on emergency
power?
(A) Building which are 5 or more stories above grade must be provided with
emergency egress elevators and meet the requirements of section 1007.2.1
or meet one of the exceptions. (02/01/2012)
7. (Q) When is an elevator required in a residential building?
(A) It is the interpretation of this department that a residential building 5 or more
stories in height require an elevator. (02/01/2012))
The March Commercial Consistency meeting was postponed due to the length of the
Residential Consistency meeting.
Commercial Consistency
Land Use and Environmental Service Agency
(Code Enforcement)
1st Quarter Q&A 2012
General:
1.
(Q) Is Fare additional permits required other than building for a re-roof job?
(A) Yes, if there are power vents or “B” vents no a roof then a mechanical and
or electrical permit would be required. (01/04/2012)
2. (Q) Is a drip edge required to be installed on roofs?
(A) Yes, Section 1507.2.9.3 in both the 2009 and 2012 NCBC required a drip
edge to be installed on roofs. (01/04/2012)
3. (Q) Are inspections by the inspector required when special inspection are required?
(A) Special inspections conducted under the requirements of Chapter 17 of the
Building Code are to be in conjunction with inspections made by the code
official. They are not to take the place of the code official’s inspections..
(01/04/2012)
4. (Q) What are the requirements for accessibility in a complete change of occupancy?
(A) The requirements of section 3411.4.2 must be met in a complete change of o
occupancy. No, if the roof is only accessed for maintenance. This would be
covered by OSHA. (02/01/2012)
5. (Q) Can finger jointed studs be used in a rated wall assembly?
(A) Yes, provided that they are marked HRA for heat rated adhesive.
(02/01/2012)
6. (Q) When are elevators required for accessible means of egress and be on emergency
power?
(A) Building which are 5 or more stories above grade must be provided with
emergency egress elevators and meet the requirements of section 1007.2.1
or meet one of the exceptions. (02/01/2012)
7. (Q) When is an elevator required in a residential building?
(A) It is the interpretation of this department that a residential building 5 or more
stories in height require an elevator. (02/01/2012))
The was not a commercial consistency meeting in March because of the length of the
residential meeting.
January 1, 2011 through March 31, 2011
Mecklenburg County Code Enforcement Department
Code Compliance Report
Data Summary
1. Building Inspections Top Fifteen Code Defects
Task
MS
FR
FT
FR
FI
FR
FR
FR
FR
FI
FI
FI
FR
FI
FI
Item #
108
111
108
197
197
104
131
109
105
104
118
105
136
178
121
Rough 02's
Final 02's
04's
Item
Need Soil/compaction test
Firestop incomplete or missing
Need soil/compaction test
Other defects listed on job
Other defects listed on job
Not ready for inspection
Engineered roof design, installation, repair
Foundation anchors missing
Call clerk or check Meckpermit.com for remarks
Not ready for inspection
Handrail construction
Call clerk or check Meckpermit.com for remarks
Ledgers/hangers incorrect or missing
Smoke/CO detector installation
Insulation missing/exposed or fallen
TOTAL – Top 15 / Total # Defects
# Defects
327
205
161
154
120
88
82
80
79
74
65
59
57
53
49
1653 / 4818
% of Total
6.79%
4.25%
3.34%
3.20%
2.49%
1.83%
1.70%
1.66%
1.64%
1.54%
1.35%
1.22%
1.18%
1.10%
1.02%
34.31%
1541
1095
346
31.98%
22.73%
7.18%
Job not ready
2. Building Inspections Top Fifteen Code Defects Previous Quarter
Task
MS
FR
FI
FR
FT
FI
FR
FR
FI
FR
FI
FI
FR
FR
FT
Rough 02's
Final 02's
04's
Item #
108
197
197
111
108
104
109
131
105
105
178
118
104
121
104
Item
Need Soil/compaction test
Other defects listed on job
Other defects listed on job
Firestop incomplete or missing
Need soil/compaction test
Not ready for inspection
Foundation anchors missing
Engineered roof design, installation, repair
Call clerk or check Meckpermit.com for remarks
Call clerk or check Meckpermit.com for remarks
Smoke/CO detector installation
Handrail construction
Not ready for inspection
Engineered floor installation or repairs
Not ready for inspection
TOTAL – Top 15 / Total # Defects
Job not ready
# Defects
286
186
175
170
141
113
104
104
89
86
74
72
72
50
50
1772 / 4928
% of Total
5.80%
3.77%
3.55%
3.45%
2.86%
2.29%
2.11%
2.11%
1.81%
1.75%
1.50%
1.46%
1.46%
1.01%
1.01%
35.96%
1583
1344
382
32.12%
27.27%
7.75%
January 1, 2011 through March 31, 2011
Mecklenburg County Code Enforcement Department
Code Compliance Report
Data Summary
1. Electrical Inspections Top Fifteen Code Defects
Task
FI
FI
FI
FI
FI
FI
FI
FI
FI
RF
FI
FI
FI
RF
RF
Item #
09
W8
19
30
04
25
65
55
05
W8
31
10
06
04
31
Rough 02's
Final 02's
04's
Item
Grounding
Defect caused by others
Label panel
Improper wiring methods
Job not ready
Improper overcurrent protection
AFCI defect
GFCI defect general
Too many to list - insp stopped
Defect caused by others
Cable subject to damage
Bonding
Defects not corrected
Job not ready
Cable subject to damage
TOTAL – Top 15 / Total # Defects
Job not ready
# Defects
151
151
110
110
99
99
70
67
66
62
60
59
47
47
47
1245 / 3512
% of Total
4.30%
4.30%
3.13%
3.13%
2.82%
2.82%
1.99%
1.91%
1.88%
1.77%
1.71%
1.68%
1.34%
1.34%
1.34%
35.45%
635
2211
233
18.08%
62.96%
6.63%
2. Electrical Inspections Top Fifteen Code Defects Previous Quarter
Task
FI
FI
FI
FI
FI
FI
FI
FI
FI
FI
FI
FI
FI
FI
FI
Rough 02's
Final 02's
04's
Item #
W8
30
09
19
25
04
65
55
10
31
05
07
06
11
59
Item
Defect caused by others
Improper wiring methods
Grounding
Label panel
Improper overcurrent protection
Job not ready
AFCI defect
GFCI defect general
Bonding
Cable subject to damage
Too many to list - insp stopped
Need qualified individual to call inspector
Defects not corrected
Incorrect size or type wire
No continuity on receptacle
TOTAL – Top 15 / Total # Defects
Job not ready
# Defects
156
151
136
136
120
104
87
86
81
76
70
68
63
60
52
1446 / 4054
% of Total
3.85%
3.72%
3.35%
3.35%
2.96%
2.57%
2.15%
2.12%
2.00%
1.87%
1.73%
1.68%
1.55%
1.48%
1.28%
35.67%
581
2627
265
14.33%
64.80%
6.54%
January 1, 2011 through March 31, 2011
Mecklenburg County Code Enforcement Department
Code Compliance Report
Data Summary
1. Mechanical Inspections Top Fifteen Code Defects
Task
FI
FI
GT
FI
FI
FI
FI
FI
RF
FI
FI
FI
FI
RF
FI
Item #
H01
G03
G03
Z99
A04
A13
Z96
P01
D06
F02
B03
F01
E08
H01
D04
Rough 02's
Final 02's
04's
Item
Damage caused by others
Gas test not to code or bad gauge
Gas test not to code or bad gauge
Other or no defect code applies
Job not ready for inspection
Need ladder
Approval withheld for other trade requirements
Primary or secondary drain missing or incorrect
Duct damaged or restricted
Flue material incorrectly installed or assembled
CO Detector Installation
Flue clearance incorrect
Equipment installation instructions not available
Damage caused by others
Duct installation incorrect
TOTAL – Top 15 / Total # Defects
Job not ready
# Defects
85
81
72
58
57
55
47
46
42
41
38
38
36
34
32
762 / 1857
% of Total
4.58%
4.36%
3.88%
3.12%
3.07%
2.96%
2.53%
2.48%
2.26%
2.21%
2.05%
2.05%
1.94%
1.83%
1.72%
41.03%
478
1198
97
25.74%
64.51%
5.22%
2. Mechanical Inspections Top Fifteen Code Defects Previous Quarter
Task
FI
FI
FI
GT
FI
FI
FI
RF
FI
FI
FI
RF
FI
RF
FI
Rough 02's
Final 02's
04's
Item #
H01
G03
Z99
G03
Z96
P01
A13
H01
A04
F02
F01
D06
B03
A04
E08
Item
Damage caused by others
Gas test not to code or bad gauge
Other or no defect code applies
Gas test not to code or bad gauge
Approval withheld for other trade requirements
Primary or secondary drain missing or incorrect
Need ladder
Damage caused by others
Job not ready for inspection
Flue material incorrectly installed or assembled
Flue clearance incorrect
Duct damaged or restricted
CO Detector Installation
Job not ready for inspection
Equipment installation instructions not available
TOTAL – Top 15 / Total # Defects
Job not ready
# Defects
108
98
97
85
84
60
59
56
54
46
44
43
42
42
37
955 / 2081
% of Total
5.19%
4.71%
4.66%
4.08%
4.04%
2.88%
2.84%
2.69%
2.59%
2.21%
2.11%
2.07%
2.02%
2.02%
1.78%
45.89%
473
1392
117
22.73%
66.89%
5.62%
January 1, 2011 through March 31, 2011
Mecklenburg County Code Enforcement Department
Code Compliance Report
Data Summary
1. Plumbing Inspections Top Fifteen Code Defects
Task
RF
FI
FI
FI
FI
WD
WD
SL
FI
FI
FI
RF
FI
FI
RF
Item #
B31
041
E31
H01
D31
C21
B31
B31
E71
C21
E81
B51
B81
D51
B81
Rough 02's
Final 02's
04's
Item
Piping test missing or incorrect
Not ready
Handicap regulations missing or incorrect
Damage caused by others
T & P drain missing or incorrect
Piping insulation missing or incorrect
Piping test missing or incorrect
Piping test missing or incorrect
Fixture installation incorrect
Piping insulation missing or incorrect
Backflow requirements incorrect
Piping support missing or incorrect
Vent piping, or AAV Size, incorrect
Expansion device missing or incorrect
Vent piping, or AAV Size, incorrect
TOTAL – Top 15 / Total # Defects
Job not ready
# Defects
109
39
37
33
30
29
26
24
23
21
21
19
17
17
16
461 / 922
% of Total
11.82%
4.23%
4.01%
3.58%
3.25%
3.15%
2.82%
2.60%
2.49%
2.28%
2.28%
2.06%
1.84%
1.84%
1.74%
50.00%
244
413
79
26.46%
44.79%
8.57%
2. Plumbing Inspections Top Fifteen Code Defects Previous Quarter
Task
RF
FI
FI
FI
FI
RF
FI
WD
RF
WD
FI
FI
FI
FI
FI
Rough 02's
Final 02's
04's
Item #
B31
H01
041
D31
E31
A17
E71
B31
B81
C21
B81
D21
D51
C21
E81
Item
Piping test missing or incorrect
Damage caused by others
Not ready
T & P drain missing or incorrect
Handicap regulations missing or incorrect
Not complete-Partial equipment/systems
Fixture installation incorrect
Piping test missing or incorrect
Vent piping, or AAV Size, incorrect
Piping insulation missing or incorrect
Vent piping, or AAV Size, incorrect
Water heater pan missing or incorrect
Expansion device missing or incorrect
Piping insulation missing or incorrect
Backflow requirements incorrect
TOTAL – Top 15 / Total # Defects
Job not ready
# Defects
103
45
36
35
34
24
22
22
20
19
18
18
18
17
17
448 / 932
% of Total
11.05%
4.83%
3.86%
3.76%
3.65%
2.58%
2.36%
2.36%
2.15%
2.04%
1.93%
1.93%
1.93%
1.82%
1.82%
48.07%
247
440
81
26.50%
47.21%
8.69%
MECKLENBURG COUNTY
Land Use and Environmental Services Agency
Code Enforcement
Date:
To:
From:
Reference:
February 27, 2012, rev April17, 2012
All customers
James N. Bartl, AIA, Director of Code Enforcement
2012 NC Residential Code Implementation
In accordance with Session Law 2011-269, the mandatory enforcement date for the 2012 NC Residential
Code is March 1, 2012. Mecklenburg County Code Enforcement has decided to implement the new
code as follows:
•
Complete permit applications submitted before 12:00 a.m., March 1, 2012 with all required
supporting documents including the required drawing documentation (plans, details, etc.) as
described on our website, will be allowed to use the 2009 NC Residential Code. The following is a
link to the Residential Plan Review webpage:
Click here
•
•
Projects involving new master plans would submit permit applications, site plans, erosion control
forms, and reference the master plan (E-Plan) number(s), in place of the required drawings.
We would accept permit applications with references to previously approved master plans as the
equivalent of submitting a drawing set.
What is not acceptable:
• Permit applications with no supporting documentation
• Permit applications with drawing sets that are substantially incomplete (less than 2/3 of the
required drawings included)
All applications received prior to March 1 must result in permit issuance by the close of business May
31. Applications failing to do so will be required to be constructed under the 2012 NC Residential Code.
Applications received on or after March 1st will be reviewed for code compliance as soon as the
Department gains access to published copies of the 2012 NC Residential Building Code. If you have
questions concerning this matter or any other technical issues contact RTAC at 704-432-7822 or
RTAC@mecklenburgcountync.gov, or CTAC at 704-432-4495.
(April 17, 2012) On March 1, 2012 the transition to the 2012 Residential Code and the 2012 Energy Code
took place. At first the codes were only available on line at the ICC web site. Now the books have been
printed and are available for purchase through ICC or the North Carolina Department of Insurance. They
may still be viewed on line.
• The transition period for all other 2012 NC Building Codes ends on June 1, 2012.
• The 2011 NC Electrical Code must move through the legislative process, consequently an
implementation date has not been set at this time.
PEOPLE • PRIDE • PROGRESS • PARTNERSHIPS
700 North Tryon Street • Charlotte, North Carolina 28202 • (704) 336-3830 • Fax (704) 336-3839
www.meckpermit.com
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CHAPTER 3 GENERAL REGULATIONS
1.) (Q) A plumbing contractor wants to change out a gas storage type water heater for a new
tankless gas fired water heater. The current installation has a B vent which extends
through several floors. The building is more than 6 stories high. The previous use of
the building was mercantile but has been changed to office. The B vent currently goes
through a new drop ceiling that was added in the past. The added ceilings make access
virtually impossible to run either the PVC or the Stainless Steel vent recommended by
the manufacturer. Does the contractor have any options to install the tankless water
heater?
(A) No. Because of the corrosive atmosphere in the piping using a B vent for the tankless
water heater is not an option. If it is indeed impossible to run the Stainless Steel or
the plastic pipe then another storage type water heater must be installed if the
contractor wants to utilize the B vent system currently installed. Ref: 301.3 FGC
2) (Q) An inspector is called to inspect a gas fired appliance installed in a fire pit on the patio
of a residential home. Only parts of the listed appliance are installed in the fire pit. The
contractor has dissembled the appliance which voided the listing. The inspector
turned the job down. The contractor called the department to see if the appliance
could be approved as installed.
(A) The decision was made that the installation could be approved as installed if the
contractor could get a letter from the manufactures engineer stating the installation of
the product was approved per contractors installation. The letter was received by the
inspector and the job was approved. Ref: 301.4, 105(FG) (Discussion 2012 MC, 301.4
Exception 2)
CHAPTER 4 GAS PIPING INSTALLATIONS
1) (Q) While inspecting a gas piping installation the inspector finds the vented pressure
regulators have vent piping located on a manifold with breather vents from other
devices. Would the 2012 code allow the vent piping to be on a manifold with multiple
devices?
(A) No. Ref: 410.3.1 FGC
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2) (Q) Piedmont Natural Gas supplies an OPD at the line service regulator on a 5 # system. Is
an OPD still required at each appliance?
(A) No. Per conversations with PSNC “if the supplier has an OPD device with relief at the
line service regulator, then PSNC would deem it satisfied and preclude the installation
of individual equipment devices having OPD protection.” Ref: 416.1, 416.2 FGC
GENERAL REQUIREMENTS (NC Admin. Code/NC Mech. Code, Admin. Section/
Departmental Policy)
1) (Q) A. What are the clearance requirements from the building for a fire pit with gas log
lighter in a single family residence? B. What is the clearance if it is located on the deck?
C. What is the Mechanical or Plumbing inspector responsible to inspect in a fire pit with
a gas log lighter?
(A) If the fire pit is less than 10 feet away from the residence or (B) if it is located on an
attached deck a chimney shall be provided over the pit per the Building Code. (C) If the
fire pit is more than 10 feet away from a residence or attached deck the Mechanical or
the Plumbing inspector is responsible to inspect only the gas line and cut off. They are
not responsible for checking listing and labeling of a decorative appliance. Discussion
with DOI and email from Janie Sutton re-verified by Jim Moeller.
2) Announcement: New Water Heater Recall information.
Navien Recalls Tankless Water Heaters Due to Risk of Carbon Monoxide Poisoning
WASHINGTON, D.C. - The U.S. Consumer Product Safety Commission, in cooperation with the
firm named below, today announced a voluntary recall of the following consumer product.
Consumers should stop using recalled products immediately unless otherwise instructed. It is
illegal to resell or attempt to resell a recalled consumer product. Name of Product: Navien
Instantaneous or Tankless Water Heaters Units: About 13,000 Importer: Navien America Inc.,
of Irvine, Calif. Manufacturer: Kyung Dong Navien Co. Ltd., South Korea Hazard: An unstable
connection can cause the water heater's vent collar to separate or detach if pressure is
applied. A detached vent collar poses a risk of carbon monoxide poisoning to the consumer.
Incidents/Injuries: None reported Description: Navien tankless hot water heaters are white
with "T-Creator" and "NAVIEN" on the front. Recalled model numbers are CR-180(A), CR210(A), CR-240(A), CC-180(A), CC-210(A) and CC-240(A) manufactured in 2008. A label on the
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side of the water heater lists the model number along with the manufacturing year in YYYY
format. Sold by: Wholesale distributors to in-home installers nationwide from February 2008
through March 2009 for between $1,500 and $2,100. Manufactured in: South Korea Remedy:
Consumers should immediately stop using and check the model and manufacture year
information on their Navien water heater. Consumers with recalled water heaters should
immediately contact Navien to schedule a free repair. Navien will replace all Nylon 66 vent
collar with PVC collars. Consumers who continue use of the water heaters while awaiting
repair, should have a working carbon monoxide alarm installed outside of sleeping areas in
the home.
Customer contact: For additional information, contact Navien at (800) 244-8202 between 8
a.m. and 5 p.m. PT Monday through Friday, or visit the firm's website at
www.navienamerica.com
Note: Regardless of the type of water heater that is used, every home should
have a CO alarm outside all sleeping areas and consumers should ensure that
their CO alarms have working batteries.[cid:image001.jpg@01CCCC92.1C2A7DA0]
3) (Q) Is black CSST gas Piping an approved product per the listing and labeling
requirements of the Fuel Gas Code? Is it approved per ICC-ES testing
requirements to be used without a separate ground?
(A) Even though the answer to both of the questions above is yes the current position
of the Electrical CA for Mecklenburg County and the Electrical Chief for DOI is
as of March 30th 2012 the product is not approved without a separate grounding
conductor.
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CHAPTER 3 GENERAL REGULATIONS
1) (Q) A cooling tower is being erected on the roof of a High Rise building. It is being
assembled using parts that are individually listed. Would this installation be allowed
under the 2012 code?
(A) No. The inspector would not allow the installation to be constructed, however, if the
design is sealed by a professional engineer, registered in the State of North Carolina, the
inspector must accept the design and construction of the equipment. Ref: 301.4,
Exception 2 (MC). (2012)
2) (Q) Exhaust Ductwork is installed on the back wall of a garage. It extends out about 4 feet
from the wall into the garage area at an elevation of 6 feet above the floor. How
should the ductwork be protected from vehicle damage per code?
(A) Protection may not be required depending on what types of vehicles are worked on in
the garage, however, reflective tape or a bollard would provide adequate protection.
Ref: 303.4 (MC). (2012)
3) (Q) A tractor trailer has a trailer 11 feet 6 inches high. It is backing into a loading dock
inside a public garage. The ceiling of the garage is 20 feet high. What is the minimum
height to the bottom of the unit heater from the top of the trailer if the unit heater is
installed directly over the trailer?
(A) Unless the manufacturers installation instructions specify a greater height the unit
heater shall be at least 1 foot 6 inches from the top of the trailer to the bottom of the
unit heater. Ref: 304.6 (MC). (2012)
4) (Q) I am installing a wood burning stove in my home. When installing the appliance I
should always be able to use table 308.6 for unlisted equipment to reduce clearances.
Is this a true statement?
(A) No. If the solid fuel burning appliance is labeled with clearances those
clearances shall be used when installing the solid-fuel burning appliance. Ref:
308.7 (MC). (2012)
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5) (Q) What improvement in sizing mechanical equipment for single family dwellings and
duplexes has made it possible in the 2012 code to provide equipment that will help
reduce either under or over sizing equipment?
(A) The use of Manual S for sizing requirements. Ref: 312.1 (MC). (2012)
CHAPTER 4 VENTILATION
1) (Q) To properly balance air flow and have a constant temperature exchange between all
spaces in an occupied building should ventilation be required at a constant value for
building occupants?
(A) NO. Ventilation shall be provided during the periods that a room or space is occupied.
Ref: 401.3 (MC). (2012)
2) Situation: We are working on a Nail Salon that will be going in a building downtown.
From speaking with the owner they will not be doing acrylic nails, and nearly all their
products will be organic. In moving forward with the design it has been determined that
per 2012 NCMC (table 403.3 footnote b) we are not allowed to retcirculate any air,
therefore, one would think all the air conditioning in the space must be exhausted. This is
not the case per DOI. In conversations with Billy Hinton concerning this section, it is his
interpretation that the reference to, “all air supplied to such spaces” meas the
ventilation air supplied, and does not include the air for conditioning the space, therefore,
air for conditioning the space could be returned to the space, but not returned to any
other spaces. Due to the occupancy location on a lower floor of a multi-story building the
designer would like to utilize one of the existing exhaust shafts near the space. One of the
shafts is for toilet exhaust; one shaft is for the pool equipment room. Both exhaust fans
are located on the roof; therefore the shafts are negatively pressurized.
(Q) From reading through Chapter 5 of the code I cannot find any section that will not
allow me to combine the exhaust from the nail salon with either of the existing shafts.
Is this allowed?
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(A) Yes. The ventilation requirement for a nail salon, (as determined by 2012 NC
mechanical code and footnote b in table 404.3), would require mechanical exhaust for
the amount of ventilation air supplied for the space for the nail stations. The code
would not require all the conditioned air be exhausted from the space. The
exhaust from the nail stations may be connected to the exhaust for environmental air
since the system is negatively pressurized. Ref: 403.2.1, Table 403.3 foot note b. (MC).
(2012)
CHAPTER 5 EXHAUSTS SYSTEMS
1) (Q) What would be an adequate amount of make-up air in a residential occupancy if the
dryer is exhausting 50 cfm and the Kitchen hood is exhausting through the roof at the
same time at 40 cfm. How much make- up air would be required?
(A) It depends. Make up air is not required in residential occupancies if natural ventilation
is used per 402, however , if 403 is used then make up air would be required.
Ref: 501.3 exception. (MC). (2012)
2) (Q) The contractor has the installation instructions for dryer vents for a specific make of
Maytag dryer that will be installed in all the apartments in a 40 unit complex. The
Manufacturers’ instructions show lengths of duct runs that exceed the minimum code
but no equivalent length for the fittings used with the dryer duct. Should the inspector
approve the installation?
(A) NO. The inspector should require the contractor to supply an equivalent length chart
for fittings from the manufacturer or re-calculate the runs using the equivalent length
chart in the code (table 504.6.4.1) Ref: 504.6.4.2 (MC). (2012)
3) Situation: A restaurant has installed two barbeque cookers under type I hoods which
exhaust high-medium- & low heat cooking appliances without permits. The food services
inspector discovered the cookers and reported it to the Code Enforcement Department.
Answer a. through e. below.
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a. (Q) The owner says the cookers are safe as installed and they are code compliant. (1) Is
the owner correct? (2) What are the obvious code violations related to this
installation?
(A) (1) The owner is not qualified to determine the safety of the equipment. The restaurant
installed the cookers without plans or permits. Triple fee. Require cookers to meet the
code. Ref: 106.1, 106.2.1 Administrative Code.
(2) Since the cookers use solid fuel and gas for heat for cooking they are classified as
extra-heavy-duty cooking appliances and cannot be located under the same type I
hood with high-medium & low heat appliances. Ref: 507.3.4 MC
b. (Q) Three Type 1 hoods for the cooking equipment are connected to single grease
exhaust duct that exits the building into a covered parking garage. (1) Can the separate
hoods required for the two Extra-heavy-duty cooking appliances be combined with the
existing grease duct exhaust if properly sized? (2) May the grease duct from the extraheavy-duty appliances exhaust into the covered Parking deck?
(A) (1) No. Hoods for the two extra-heavy–duty barbeque cookers shall exit the building
through a separate exhaust duct system. The two cookers may, however, be under the
same Type 1 hood rather than having separate hoods or under a hood or hoods listed
for the application by the manufacturer. The exhaust systems may also be combined
since both are extra-heavy-duty cooking appliances. Ref: 507.2.4, 506.3.5 exception # 4
(2) No. It is a violation to have the current hood system grease duct exit the building
into a parking garage. The new grease duct shall exit the building either vertically or
horizontally to the outside. Ref: 506.3.12.2, 506.3.12.3, 506.5.5
c. (Q) Are there more stringent exhaust requirements for hood exhaust CFM and safety
devices for a hood over an extra-heavy-duty cooking appliance than over high-mediumlow & heat cooking appliances?
(A) Yes, see ventilation tables. Ref: 507.13.1
d. (Q) The manufacturer of the barbeque cookers sends a letter to the Code Administrator
with information on the engineering of the cookers. The letter explains how the cookers
are engineered/designed to make it virtually impossible for a spark or ember to be
exhausted into the exhaust duct system. The letter also states the cookers can be located
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under the same type I hood with high-medium-low heat cooking appliances. Further, the
letter states the information will be included in the manufacturers literature in the future
on the two cookers installed at the restaurant plus 5 other models of cookers with similar
exhaust characteristics. Should the Code Administrator accept the manufacturer’s letter
and approve the cookers? (note: The manufacturer does not have a registered PE on
their staff.)
(A) The code official may accept the letter under the conditions stated above if a
professional engineer who works directly for the factory provides a letter under his seal
that the changes to the literature will be made. The letter must also provide information
as to how the engineering/design of the product is such that a spark or ember can never
be exhausted from the cookers that may cause a grease fire in the ductwork and ignite
fires in heavy-medium or light duty appliances that may also be under the hood. Ref:
105.2 MC
e. (Q) Should the Code Administrator require a third party test that confirms the cookers
will not emit sparks or embers into the grease duct system before he approves the
cookers?
(A)This may be one solution the Code Administrator would allow. Ref: 105.3, 105.3.1,
105.3.2 (MC).
4)(Q) a. What is the new clearance requirement in the 2012 Mechanical Code from operable
openings for all environmental air ducts? b. Can environmental air ducts ever be
considered hazardous or noxious?
(A) a. Three feet, Ref: 501.2.1 (MC)
b. No. Ref: 501.2.1 (MC)
5) (Q) Is exhausted air ever allowed to discharge into walkways or hallways?
(A) No. Ref: 501.2.1.1
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CHAPTER 6 DUCT SYSTEMS
1) (Q) What method can be used to protect the openings in a floor/ceiling or roof/ceiling
assembly where supply air duct from the HVAC unit penetrates the membrane of the
assembly? The type of occupancy is R2 multi-story with type V construction.
Note: The Mechanical Code calls for either a shaft, 607.6.2 #1, or a listed ceiling
radiation damper installed at the ceiling line, 607.6.2 #2, and a listed ceiling radiation
damper installed at the diffuser with no duct attached 607.6.2 #3 (supply plenum).
(A) There is an issue that needs to be addressed with 607.6.2 #2. UL 555C and 607.3.1
would require the radiation damper to have dynamic closure because the unit fan will
continue to run in a fire or smoke condition. 607.3.1 states; “Only fire dampers listed
or labeled for dynamic systems shall be installed in heating, ventilating, an airconditioning systems designed to operated with fans on during a fire.” There is no
shut down required by code for the fan of an air handler in an apartment HVAC
system for example, therefore, the code and UL 555C require a dynamic type
damper for this installation. Per current DOI information a dynamic radiation damper
listed for mounting in the membrane ceiling of the penetration shall be used. As an
alternate method the air handler must be shut down in case of fire. This can be
accomplished by installing a smoke detector in the room adjacent and open to the air
handler and tying it into the smoke detector system of the apartment unit. If you
opted for the smoke detector you still are required to protect the penetration with a
radiation damper, however, since you have provided a means to shut the air down via
the smoke detector you can install a standard radiation damper with static and not
dynamic closure. These are the only two methods approved at the present time.
Ref: 607.6.2 #2, 607.3.1, UL 555 C (MC). (2012)
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GENERAL INFORMATION (Admin. Code/ Mech. Code Admin. Section/ Policy)
1) (Q) Are permits required for B vents when a re-roof permit is pulled for a building with gas
flues penetrating the roof?
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(A) Yes. Alteration of the vent will require a permit. Ref: (102.1/GS 87-21/GS 153-327
Admin. Code), (102.9 MC). A letter is on the Meckpermit.com web site under the
Mechanical Section click on “news and updates” there is a link on that page for the reroof permit requirements.
2) (Q) Unitary equipment is being installed in a hotel room. E.g. ptac unit in a hotel. Are
permits required for this installation?
(A) If this is a like for like change out permits are not required. If it is a new installation it
should have permits and inspections if it has a hidden drain/ electrical connection.
Ref: 106.1 Administrative codes.
3) (Q) What types of installations do not apply to a refrigeration trade or business and are not
required to be installed by a refrigeration contractor?
(A) House Bill 1105 was recently passed by the General Assembly and signed into law by
Governor Perdue. Changes to the law are summarized as follows:
Section 1 provides that “refrigeration trade or business” does not apply to the following: (1)
The installation of self-contained commercial refrigeration units equipped with an original
equipment manufacturer (OEM) molded plug that does not require the opening of service
valves; (2) the replacement of lamps, fuses and door gaskets; and (3) the installation and
servicing of domestic house-hold self-contained refrigeration appliances equipped with an
OEM molded plug connected to suitable receptacles which have been permanently installed
and do not require the opening of service valves.
4) Situation per Designer: A couple of weeks ago we discussed an old (approx. 35 years)
building (approx. 15,000 sq. ft.) utilizing the original hallway for the return. The ceiling is
extremely tight and there is no real room or access or practical method for adding a return
duct. It is served now by a couple of self-contained single zone units utilizing boiler hot water
and condenser water. We want to replace the ancient units with split systems with the AHU
installed in the same mechanical rooms, with condensing units on the roof and utilizing the
same single zones – no changes to ductwork. There is really no other practical/efficient/cost
effective way to replace the ancient units and get rid of the ancient boilers and cooling
towers. We know we need to submit the mechanical, electrical, and structural but really
need to know about the hallway return before we spend a lot of effort and money. When we
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talked before you indicated that this hallway return could be grandfathered since it is very
close to being like-for-like and there is no work other than replacing the central unit.
(Q) Can we still utilize the hallways for returns?
(A) Yes. Since you are doing away with an ancient cooling tower and boiler you we will
need a split system with a condenser on the roof. There will be no changes outside of
the mechanical room and roof. The installation will be allowed per the conditions
specified. 105.3 (MC)
5) (Q) What are the current requirements for installing Carbon Monoxide detectors in
residential single family dwellings, duplexes and townhomes? Is the requirement
the same for commercial construction?
(A) In general, a change out of fossil fuel equipment in a residence will require the addition
of a Carbon Monoxide Detector per GS. CO2 detectors are currently required adjacent
to each sleeping area per BCC rules. An all electric residence is exempt unless
they currently have an existing attached garage or are adding a new attached garage
or have or are adding a fireplace. If these conditions are present Carbon Monoxide
Detectors are required even if they do not have fossil fuel equipment. Fossil fuel fired
equipment such as a hot water heaters in a hut attached to the house are exempt from
the CO2 detector requirements, however, a gas pack or other appliance that is
communicating with the inside of the house is not exempt. The “special exemptions”
only apply to single family dwellings, duplexes and townhomes. All other
commercial occupancies shall have Carbon Monoxide Detectors per current code
requirements. If a “plug in type or table model” Carbon Monoxide detector will be
used the inspector shall have ready access to the detector on the premises. It must be
in the box and readily accessible for the inspector. Having an empty box for
the inspector or taping a box to the inside of a window is not acceptable.
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CHAPTER 2 DEFINITIONS
1) (Q) While inspecting a lab set up for acid waste and vent piping in a medical office
building the inspector finds the acid waste piping system installed without the
minimum required vent sizing requirements for DWV per code. The inspector asks
for and receives the documentation on the engineered system. Should the
Inspector question the seal if a structural engineer seals the design document?
(A) Yes. Current code would require an engineer in his respective design profession to
seal the design. Under the 2012 Code it depends on whether the licensing board
deems them qualified by the state board rules and regulations. 2009 code:
“licensed to practice in his respective design profession” New Code: “registered
and licensed to practice professional architecture or engineering as defined by
statutory requirements…………” Ref: 2012 NCPC. Chapter 2 definitions Registered
Design Professional
CHAPTER 3 GENERAL REGULATIONS
1) (Q) An engineer has designed a gray water waste recycling system including all DWV
located in the basement of a single family dwelling. The system is designed to
allow full flow throughout the system so the engineer has decreased the
minimum pipe sizes of the DWV associated with the gray water system to one
pipe size smaller than the minimum code would allow. Would this
installation be allowed per the 2012 NC Plumbing Code?
(A) No. “All drain, Waste, and Vent piping associated with gray water recycling
systems shall be installed in full compliance with this code. “Ref: 301.3, (2012)
2) (Q) A contractor is installing a rain water recycling system. He explains to the inspector
that he is connecting indirectly to the sanitary drainage system so he does not have
to use the code minimum sizing requirements for the plumbing piping. Should the
inspector pass the rainwater DWV system?
(A) No. 2012 Code requires gray water and rain water recycling systems to meet
minimum code requirements for DWV. The drainage system cannot connect
indirectly to the sanitary sewer. Ref. 301.3 (2012)
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3) (Q) The plumbing contractor has installed a floor drain with a deep seal trap in the slab
at the bottom of an elevator shaft in a multi-story office building. The elevators
are all hydraulic type. Can this installation be approved under the 2012 code? Can
it be approved under the 2009 code?
(A) No. New code requires an oil water separator to be installed in the discharge line
of the floor drain. Ref: 301.6 (2012), 301.6, Exception. 2009 Code would not
require an OWS to be installed. Per research of hydraulic elevator fluid capacities
and spill probabilities an OWS mayl not be required by Mecklenburg County.
See Plumbing interpretations on the web site for current information.
4) (Q) The manufacturer of a new brand of AAV allows a 20 degree deviation from
vertical on the vents installed in an attic. If the plumbing code had a minimum
standard that only allowed an 18 degree deviation, which of the two installations
should be approved by the inspector?
(A) The code minimum shall be met because it is more restrictive. NCPC 2012 Ref:
301.7, Exception
5) (Q) The pump for a domestic hot water recirculation system is located below the
design flood elevation in the garage of a single family dwelling located close to the
ocean. Would this installation be allowed by the 2012 code?
(A) No. A pump for domestic water cannot be installed below the design flood
elevation. The exception allowing the pump in the 2009 code has been deleted
from the 2012 code. Ref: 2012 code see item 2 is deleted from the exceptions.
2012 NCPC [B] 309.2 Exception (deleted)
6) (Q) All permanently installed water closets in buildings are required to be in a separate
room or stall by the 2012 Plumbing Code. What are the two locations exempted by
the 2012 code?
(A) Child Care facilities and facilities where restraint is required per the building codes.
Ref: 2012 NCPC 310.4, exception 3.
7) (Q) An inspector is witnessing the testing of the plumbing system on a single family
dwelling. The dwelling has several shower installations. The inspector has turned
the job down because the plumbing contractor has not provided a shower pan liner
test. Is this a required inspection under the 2009 Plumbing Code? Is it a required
inspection under the 2012 Plumbing Code?
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(A) The 2012 code test procedures require a shower pan test. REF: 2012 NCPC
312.9. The 2009 code did not address shower pan testing.
CHAPTER 4 FIXTURERS, FAUCETS AND FIXTURE FITTINGS
1) (Q) An inspector is called to re-inspect an apartment that has been recently occupied.
The apartment is one in a newly completed complex of over 100 units. While
inspecting a new water connection the inspector notices the water heater
temperature is set at 140 degrees. What should the inspector do per the 2012
code?
(A) The inspector should inform the tenant, contractor and landlord that an anti- scald
valve is required if the temperature is set above 120 degrees in the dwelling
unit. Ref: 424.3, 102.9
CHAPTER 6 WATER SUPPLY AND DIDTRIBUTION
1) (Q) An underground combined water/fire service line is installed to supply both fire
sprinkler and potable water to a building.
A) Can the FDC (Fire Department Connection) to the building be installed on the
potable water side of the water service piping?
B) Is protection required for Fire Hydrants when FDC branch lines are located
remote from the potable water supply line.
(A) A) No. The potable water shall be protected from the sprinkler water in the
building by a backflow device that meets the code. The combined line shall
meet the requirements of the State Plumbing Code first for protection, material
and testing. Once that has been done the Fire Code requirements shall be met.
Ref: 608.13
B) Yes. When Fire Hydrants or other Fire Apparatus are located on the potable
water supply and the main water line shall be protected from the turbid water
that is located in the water line to the hydrant by a backflow device meeting
minimum code. The backflow device shall be installed on the FDC branch as
close as possible but no more than 10 feet away from the branch connection to
avoid turbid water from entering the domestic water line and contaminating the
potable water. Ref: 608.5, 608.13
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2) (Q) The specifications for a new commercial building call for Polybutylene (PB) water
service and water distribution pipe to be used on a project permitted under the
2012 Plumbing Code. Should the plans examiner approve this material?
(A) No. The 2012 code has removed PB from the list of approved material for water
service piping. Ref: Table 605.3, table 605.4
3) (Q) Sanitary Sewer piping cannot have restrictions to flow because of the waste build
up and eventual clog that results from the restriction either in pipe size reduction
or using a fitting with shoulders that would disrupt flow. Would the 2012 code
require the same restrictions on water pipe fittings?
(A) Yes. “fittings shall not have ledges, shoulders or reductions capable of retarding or
obstructing flow in the piping.” Ref: 605.5
4) (Q) Is cross link aluminum PEX allowed in the 2012 code for water distribution, water
service and fittings?
(A) Yes. See 605.21, 605.21.1, and tables 605.3, 605.4 and 605.5
5) (Q) A Would a stop- and- waste valve be allowed under the 2009 code? B. Would a
stop-and –waste valve be allowed under the 2012 code?
(A) A. No. Not allowed 608.7 2009 NCPC
B. Yes. See 608.7 Exception NCPC Freeze proof yard hydrants that drain the
riser into the ground shall be permitted to be installed, provided that the
potable water supply to such hydrants is protected upstream of the hydrants
in accordance with Section 608 and the hydrants are permanently identified as
no potable outlets by approved signage that reads as follows: “Caution, Non
potable Water. Do Not Drink.”
CHAPTER 7 SANITARY DRAINAGE
1) (Q) An engineering firm has submitted plans to construct a building with a large
meeting room located in a park in Mecklenburg County. The meeting room will be
rented by the parks department for meetings and social occasions. Neither the
parks department nor the health department(food services) will allow food to be
prepared on the site. The prep area contains a 3 compartment sink and a six
burner residential range with a type 2 hood. The waste for the building is drained
into a septic tank. Septic tank installations are required to be approved by the
1st Quarter
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NC Plumbing Code 2012
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2nd Quarter 2012 Code Q & A in green
4th Quarter 2012 Code Q & A in red
Mecklenburg County Groundwater and Wastewater Dept. (GWWD) The
GWWD dept. will not require a grease interceptor on the site. The Code
enforcement department will require a point of use interceptor at the 3
compartment sink. The GWWD rules require the interceptor, if installed, to be
installed outside the building and meet their installation requirements. The
designer is looking for direction to try to comply with the two department
requirements. What should be done to resolve the conflicts between the two
departments?
(A) As with the minimum building codes the most restrictive requirements shall apply.
The grease interceptor is required. It has to meet the minimum standards of both
the GWWD and the Mecklenburg County Code Enforcement Department code
minimums. The sanitary waste and vent system installation is required to be
permitted and inspected by the code enforcement department up to the
connection at the septic tank. Ref: 701.1, 701.2
2) (Q) An AAV is installed on a plumbing vent. The AAV is specified from the
manufacturer for multiple applications. The 1(1/2) inch AAV may be installed
directly to a 1 (1/2) inch pipe (outside) or glued (inside) a 2 inch pipe. Does the
installation meet code and manufacturers recommendations?
(A) No. The manufacturer of the pipe will not allow gluing a fitting on the inside the
pipe. Ref: 702.4
3) (Q) The water service has been completed on a project, however, while installing the
sanitary sewer line the contractor runs into a problem. FYI: (The water service
line is crossing the water line at 90 degree angle.) The water line installation will
not allow the proper slope on the pipe to meet the code per the DFU calculation.
The engineer wants to replace the 4 inch sewer line with an 8 inch line so the
water service will not have to be re-done. With this fix the sewer line will meet
code per the slope requirement and miss the water service line. A. Would this
be allowed by code? B. If no. What are acceptable alternatives that will meet
code?
(A) A. No. 704.1 The “scouring velocity” of the piping cannot be maintained when
using an 8 inch pipe. B. To keep solids suspended a slope with a velocity of 2 feet
per second must be maintained. To use this alternate method the engineer will
have to provide calculations in a sealed letter that show the slope can be reduced
and still maintain the 2fps velocity required to meet minimum code. The 2fps
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allowance is in the code commentary and the NCDNR site utility requirements.
The contractor can re-route the water line as an alternate to providing the
calculations. Ref: 704.1
CHAPTER 8 INDIRECT/SPECIAL WASTE
1) (Q) An indirect waste receptor (hub drain) is installed above a drop ceiling collecting
condensate from an air handler. Should the inspector approve or disapprove the
job under any or all of the following conditions:
a. The hub drain has a deep seal trap.
b. The hub drain has a deep seal trap and is trap primed from the tail piece of a
bathroom lavatory from the floor above.
c. The contractor installs a metered water line directly to the trap as a primer.
d. The hub drain is installed in a return air plenum ceiling.
e. The hub drain is accessible from a pull down stair.
f. The hub drain is in an attic that has a permanent stair.
(A) (a-e disapproved) f. approved. Ref: 2009-802.3, 2012-802.3 “Ready access.”
CHAPTER 10 TRAPS, INTERCEPTORS, AND SEPARATORS
1) (Q) I am the plumbing engineer on the new Ralf and Sons restaurant. Does your
department size the grease interceptor for our restaurant? Can a hand sink be
indirect and go through the interceptor?
(A) Our policy is that the engineer sizes, specifies and seals the Grease interceptor.
We don’t get into interior vs. exterior; we just say that we require any drains such
as flat floor drains in the food prep area, pot sinks/3 compartment/food prep/
sinks/ & dishwashers are required to go thru the Interceptor. We request that any
clear water waste,( i.e.: hand sinks/ice machine condensate in hub drains), go
directly to sanitary, this keeps the size of the Grease Interceptor to a minimum to
assist the utility dept. The engineer should go by the manufacturer’s instructions for
sizing the interceptor and provide cut sheets with the plans. See dept guidelines on
the web site. Ref: 1003.3.1
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APPENDIX REQUIREMENTS
1) (Q) Does the 2012 code regulate swimming pool piping, process piping systems, utility
owned piping systems or rain water recycling systems?
(A) Only rain water recycling systems of the four listed. (Appendix C1 mandatory).
See also page VII.
GENERAL REQUIREMENTS, POLICY, ADMINSTRATIVE CODE
1) (Q) Plumbing permits are currently required for repairs when breaking a trap seal
"Unsafe conditions", does this include all traps?
(A) Yes, permits are required for breaking ALL trap seals. (Admin 102.4)
2) (Q) The new 2012 plumbing code has words italicized in the code text. The 2009 did
not have this feature. A. What does it mean when a word within a paragraph in
the body of the code is italicized? B. It is confusing that some of the same words
that are italicized in one paragraph of the code text are not italicized in other
paragraphs. Did the code writer just miss some words and not others?
(A) Page VI of the new code describes how to understand the italicized words.
A. When a word is italicized in the code text it means it has the exact meaning as
the definition in chapter 2 of the code.
B. If the word is in the definition but not italicized in the code text it does not
have the same exact meaning as the definition.
3) (Q) If the code has a bracket in front of the code text ([B] for Building Code for
instance) does that mean the Building inspector should enforce that section of the
code?
(A) No. The bracket beside the code text means a committee other than the
Plumbing Code change committee is responsible for the change. Enforcement is
still the responsibility of the plumbing plan reviewer or inspector.
1st Quarter
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(Code Enforcement)
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NC Plumbing Code 2012
1 Quarter 2012 Code Q & A in tan
3rd Quarter 2012 Code Q & A in blue
2nd Quarter 2012 Code Q & A in green
4th Quarter 2012 Code Q & A in red
1st Quarter
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(Code Enforcement)
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NC Plumbing Code 2012
1 Quarter 2012 Code Q & A in tan
3rd Quarter 2012 Code Q & A in blue
2nd Quarter 2012 Code Q & A in green
4th Quarter 2012 Code Q & A in red
1st Quarter
Land Use and Environmental Service Agency
(Code Enforcement)
MECKLENBURG COUNTY
Land Use and Environmental Service Agency
Code Enforcement
2/8/12 ELECTRICAL CONSISTENCY MEETING
Code Consistency Questions
1. I am inspecting a building addition. They have a 480V to 120/208V 150 KVA step down
transformer with two 225 amp panels being fed from it, but now have more circuits than
these two panelboards can handle. Can they tap an additional 100 amp panel off of this
transformer? The 100 ampere panel would be 15 feet away.
If the primary side is protected at 125% of the transformer rating and the secondary panel
satisfy grouping and tap rules, then this installation is code compliant
If the primary side is protected at greater than 125%, then this installation does not comply
with the NEC.
2. What is the maximum length of raceway I can use where the conductor ampacity is not
required to be adjusted for conductor bundling?
See Note 4 to Table 1 of Chapter 9 that states “Where conduit or tubing nipples
having a maximum length not to exceed 600 mm (24 in.) are installed between boxes,
cabinets, and similar enclosures, the nipples shall be permitted to be filled to 60
percent of their total cross-sectional area”, and 310.15(B)(2)(a) adjustment factors
need not apply to this condition. See also 310.15(B)(2(a) Exception No. 3 that states
“Derating factors shall not apply to conductors in nipples having a length not
exceeding 600 mm (24 in.).
3. We have a 400A, 3-phase feeder that we want to wire with two parallel sets of 3/0 AWG
conductors in the same raceway. Is this acceptable?
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Yes, see 310.4 (A) and (C) as there is nothing wrong with this installation. However,
derating will be required. See 310.15(B)(2) Adjustment Factors, (a) More Than Three
Current-Carrying Conductors in a Raceway or Cable. Where the number of currentcarrying conductors in a raceway or cable exceeds three, or where single conductors
or multiconductor cables are installed without maintaining spacing for a continuous
length longer than 600 mm (24 in.) and are not installed in raceways, the allowable
ampacity of each conductor shall be reduced as shown in Table 310.15(B)(2)(a).
4. Our utility requires a non-fused disconnect upstream of the meter and service disconnect
for certain services. Is this legal? If this is the first disconnect, do we separate the grounded
and grounding conductors at this point?
See 230.82 (3) that states “Meter disconnect switches nominally rated not in excess of
600 volts that have a short-circuit current rating equal to or greater than the available
short-circuit current, provided all metal housings and service enclosures are grounded
in accordance with Part VII and bonded in accordance with Part V of Article 250. A
meter disconnect switch shall be capable of interrupting the load served.” These are
used because self-contained meters and internal meter bypass switches may not be
able to safely disconnect 277/480 volt services under load. This is not the service
disconnecting means, so for Article 250 purposes, pretend that this switch does not
exist.
5. If structural steel is used as a grounding electrode for the electrical service, is it also
necessary to supplement the steel electrode with an additional electrode such as a ground
rod? If structural steel is “high and dry” can it be converted to a grounding electrode?
Specific answer - No, once structural steel in established as an electrode, it does not
have to be further supplemented by an additional electrode. Also an answer - No, if
(10 ft) or more of a single structural metal member is in direct contact with the earth
or encased in concrete that is in direct contact with the earth.
For the 2008 NEC, connecting the metal frame of the building to an additional
electrode such as a ground rod would make the metal frame of the building an
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electrode. This has been revised for the 2011 NEC. The Article 100 definition of a
grounding electrode is “a conducting object through which a direct connection to earth
is established”. For correct application of this definition, the structure metal members
of a building or structure needs to be the conducting object with a direct connection to
the earth.
250.52 Grounding Electrodes. (2008 NEC)
(A) Electrodes Permitted for Grounding.
(2) Metal Frame of the Building or Structure. The metal frame of the building or
structure that is connected to the earth by any of the following methods:
(1) 3.0 m (10 ft) or more of a single structural metal member in direct contact with
the earth or encased in concrete that is in direct contact with the earth
(2) Connecting the structural metal frame to the reinforcing bars of a concreteencased electrode as provided in 250.52(A)(3) or ground ring as provided in
250.52(A)(4)
(3) Bonding the structural metal frame to one or more of the grounding electrodes
as defined in 250.52(A)(5) or (A)(7) that comply with 250.56
(4) Other approved means of establishing a connection to earth
250.52 Grounding Electrodes. (2011 NEC)
(A) Electrodes Permitted for Grounding
(2) Metal Frame of the Building or Structure. The metal frame of the building or
structure that is connected to the earth by one or more of the following methods:
(1) At least one structural metal member that is in direct contact with the earth for
3.0 m (10 ft) or more, with or without concrete encasement.
(2) The hold-down bolts securing the structural steel column are connected to a
concrete encased electrode that complies with 250.52(A)(3) located in the support
footing or foundation. The hold-down bolts shall be connected to the concreteencased electrode by welding, exothermic welding, the usual steel tie wires, or other
approved means.
6. When a conduit leaves a Class I, Division 1 classified paint spray room and goes under the
concrete floor into a cabinet in the motor control room that is non-classified, is one sealing
fitting in the paint mix room sufficient, or is an additional sealing fitting required in the nonclassified area as well?
516.4 sends us to Article 501 or 505 for wiring methods. 501.15(A)(4) contains the
sealing rules. If it can be located to minimize the communication of fumes in the
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conduit one will suffice.
7. A service equipment panel-board has a 400 amp main which feeds a bus that has double
barrel lugs at the bottom, and then feeds two 200 ampere disconnects. Is it permissible to
tap directly from the double barrel lugs of a service equipment panel-board?
Yes, see 240.21 and 110.14(C). The tap rules are covered in 240.21 and the
termination requirements in 110.14(C). As long as the conductors are being
terminated in accordance with the permitted markings for the lugs and the appropriate
tap rule is being followed with a 400A breaker protecting the feeder, there is no
violation to supply tap conductors from a sub-feed lug on the panelboard. It would
appear that either the 10ft or 25 ft tap would be permitted in this installation.
8. We have motors that are interlocked, preventing them from being on at the same time. Do
we still have to add them all up for service and feeder calculations?
No. See 430.24, Exception No. 3 that states “Where the circuitry is interlocked so as to
prevent operation of selected motors or other loads at the same time, the conductor
ampacity shall be permitted to be based on the summation of the currents of the
motors and other loads to be operated at the same time that results in the highest
total current.
For service ampacity, 230.42 Minimum Size and Rating (A) General, references Part III
of Article 220. Section 220.50 Motors refers to 430.24 as shown above. Also see
220.60 that states “Where it is unlikely that two or more noncoincident loads will be in
use simultaneously, it shall be permissible to use only the largest load(s) that will be
used at one time for calculating the total load of a feeder or service.”
9. I was doing a swimming pool job that included a motor, wet niche fixture, and metal
forming shell. When installing the equipotential bonding grid, I split bolted a #8 copper
jumper from the forming shell to the light niche and one from the forming shell to the motor.
The inspector turned me down saying the grid could not be a component in bonding the
niche to the other metal parts. Is she correct?
680.26 Equipotential Bonding.
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(A) Performance. The equipotential bonding required by this section shall be installed to
reduce voltage gradients in the pool area.
(B) Bonded Parts. The parts specified in 680.26(B)(1) through (B)(7) shall be bonded together
using solid copper conductors, insulated covered, or bare, not smaller than 8 AWG or with
rigid metal conduit of brass or other identified corrosion-resistant metal. Connections to
bonded parts shall be made in accordance with 250.8. An 8 AWG or larger solid copper
bonding conductor provided to reduce voltage gradients in the pool area shall not be required
to be extended or attached to remote panelboards, service equipment, or electrodes.
10. I understand the Code allows me to use Type AC cable with an equipment grounding
(bonding) conductor for branch circuits serving patient care areas. Can I use Type MC Cable
with an equipment grounding (bonding) conductor for luminaires located above 7.5 feet in a
patient care area?
Yes, see 517.13, Grounding of Receptacles and Fixed Electrical Equipment in Patient
Care Areas, that states “Wiring in patient care areas shall comply with 517.13(A) and
(B). Section (A) Wiring Methods states “All branch circuits serving patient care areas
shall be provided with an effective ground-fault current path by installation in a metal
raceway system, or a cable having a metallic armor or sheath assembly. The metal
raceway system, or metallic cable armor, or sheath assembly shall itself qualify as an
equipment grounding conductor in accordance with 250.118.”
11. What is the maximum number of bathroom receptacles that can be placed on the 20A,
120V bathroom receptacle circuit in a single-family dwelling? Could you elaborate on other
options for bathroom receptacles requirements.
Question 1 – There is no maximum. See 210.11(C)(3) that states “In addition to the number
of branch circuits required by other parts of this section, at least one 20-ampere branch circuit
shall be provided to supply bathroom receptacle outlet(s). Such circuits shall have no other
outlets.” The see 220.14(J) and (J)(1) that states one-family, two-family, and multifamily
dwellings the outlets specified in (J)(1), (J)(2), and (J)(3) are included in the general lighting
load calculations of 220.12. No additional load calculations shall be required for such outlets.
220.14(J)(1) states “All general-use receptacle outlets of 20-ampere rating or less, including
receptacles connected to the circuits in 210.11(C)(3).”
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12. What sections of the NEC would apply to piers and docks at single family dwellings?
Would Article 682 apply?
All of the normal sections that apply to single family dwellings would apply to piers and docks
at single family dwellings. Article 682 could apply since it is not specifically excluded. 210.8
Ground-Fault Circuit-Interrupter Protection for Personnel.
FPN: See 215.9 for ground-fault circuit-interrupter protection for personnel on feeders.
(A) Dwelling Units. All 125-volt, single-phase, 15- and 20-ampere receptacles installed in the
locations specified in (1) through (8) shall have ground-fault circuit-interrupter protection for
personnel.
(3) Outdoors
(C) Boat Hoists. GFCI protection shall be provided for outlets not exceeding 240 volts that supply boat
hoists installed in dwelling unit locations.
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Code Enforcement
3/14/12 ELECTRICAL CONSISTENCY MEETING
Code Consistency Questions
1. Does Section 210.4(B) apply to Article 517? For example a multiwire branch circuit feeding
a minimum of six receptacles for a patient bed location in a critical care area as required by
517.19(B). Would it be required to disconnect all ungrounded conductors of a multiwire
branch circuit permitted from the normal system?
Yes, Chapters 1 through 4 requirements apply to all portions of Chapter 5 unless specifically
addressed in the appropriate Article (NEC 90.3) Article 517 does not address this issue.
210.4(B) Disconnecting Means. Each multiwire branch circuit shall be provided with a means
that will simultaneously disconnect all ungrounded conductors at the point where the branch
circuit originates.
Note: Code Making Panel 15 has accepted a proposal at the ROP stage for the 2011 NEC, that
will not allow the use of multiwire branch circuits for patient care areas.
2. When installing a feeder to an outbuilding, ground rods will be installed, and 4-wire feeder
cable will be used to keep a floating neutral at the outbuilding panel isolated from the ground
bus. What is to be done if there also is a copper water line to this outbuilding that is common
to the first building where the service disconnect is located? Does that need to be bonded to
the feeder ground bus also?
Yes the metal water pipe needs to be bonded to the equipment ground bus. It does not
matter if the water pipe is “common” to both the building the service is in and the second
building. The answer is found in 250.104(A)(3) Multiple Buildings or Structures Supplied by a
Feeder(s) or Branch Circuit(s). This section requires the metal water piping system to be
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bonded in or at the building supplied by one or more feeders or branch circuits. The size of
the bonding jumper conductor is determined from Table 250.66 based upon the size of the
supply conductor.
3. A meter and service disconnect are being installed on the outside of the home and the
panelboard is 15 feet inside the basement. Can the main grounding conductor from the
exterior service disconnect be installed inside the EMT conduit along with the feeders,
through the panelboard and to the water pipe in one continuous length or should it remain
outside of the conduit?
This grounding electrode conductor is permitted to be installed inside or outside the EMT. If
installed inside, look at the rules in 250.64(E) which requires the grounding electrode
conductor to be bonded to the ferrous metal raceways and enclosures it passes through. Your
installation may be very difficult to do.
4. I have an outdoor housed generator set that is 35 feet away from the building being
served. There is main breaker (disconnect) at the generator location and a wall between the
building served and the generator. Is a disconnect also required at the building being served?
700.12(B)(6); 701.11(B)(5) and 702.11 states:
Outdoor Generator Sets. Where an outdoor housed generator set is equipped with a readily
accessible disconnecting means located within sight of the building or structure supplied, an
additional disconnecting means shall not be required where ungrounded conductors serve or
pass through the building or structure. The disconnecting means shall meet the requirements
of 225.36.
Also we need to look at the definition of “within sight”:
In Sight From (Within Sight From, Within Sight). Where this Code specifies that one
equipment shall be “in sight from,” “within sight from,” or “within sight of,” and so forth,
another equipment, the specified equipment is to be visible and not more than 15 m (50 ft)
distant from the other.
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5. A duplex dwelling has separate meters and load centers for each dwelling. A breezeway
separates the two dwellings. The breeze way has two luminaires. Can I feed one luminaire
from each dwelling?
210.25 Branch Circuits in Buildings with More Than One Occupancy.
(A) Dwelling Unit Branch Circuits. Branch circuits in each dwelling unit shall supply only loads
within that dwelling unit or loads associated only with that dwelling unit.
(B) Common Area Branch Circuits. Branch circuits required for the purpose of lighting, central
alarm, signal, communications, or other needs for public or common areas of a two-family
dwelling, a multifamily dwelling, or a multi-occupancy building shall not be supplied from
equipment that supplies an individual dwelling unit or tenant space.Article 210.25(B) stipulates
that common area branch circuits cannot be supplied from equipment that supplies an
individual dwelling unit.
6. I have a covered structure that is open on the side and is wired. Are the receptacles under
this covered structure required to have GFCI protection?
7. Can a 200-amp MLO power panel be fed with a 9’ tap from a 200-amp OCP device using a
#2 copper Type THHN and a heating load of 80 amps?
No, see 240.21(B). The installation described about meet neither the 10 ft or 25 ft tap rule.
NEC 240.21(B)(1) requires the conductor to be size not less than the device in which it
terminates (#2 is not large enough for a 200A panel). NEC 240.21(B)(2) requires the
conductors to terminate in an overcurrent device.
8. Is a service receptacle required in a furnace room located in the middle of a finished
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residential basement where there are receptacles in other rooms within 25’of the equipment?
If so does it need to be GFCI protected?
Yes, a service receptacle is required. A receptacle for a furnace must be in an
accessible location for servicing the equipment in accordance with 210.63. The
receptacle is required to be GFCI protected if required by its location in accordance
with 210.8. Where a flexible cord or cable would be required to be utilized in the
given scenario, the provisions of Article 400 also apply. It is not permitted to run
flexible cord through a doorway in accordance with 400.8(3).
9. An inspector rejects an island receptacle that is located under a counter top with an
overhang of 7”. The electrician installs another receptacle that is in compliance but leaves the
original rejected receptacle installed. Can it remain or does it need to be removed?
It can remain…but not a part of the small appliance branch.
10. Can a 50-ampere receptacle be fed by a 30-ampere circuit breaker?
Yes, as a 50-ampere circuit could not serve other than a 50-ampere rated receptacle, but a
50-ampere receptacle can certainly be protected by a lesser rated overcurrent device such as
a 30-ampere overcurrent device.
However, see Section 210.21 Outlet Devices, (B)
Receptacles, subparagraph (3) Receptacle Ratings, that states, “Where connected to a branch
circuit supplying two or more receptacles or outlets, receptacle ratings shall conform to the
values listed in Table 210.21(B)(3), or where larger than 50 amperes, the receptacle rating
shall not be less than the branch-circuit rating.”
PEOPLE ● PRIDE ● PROGRESS ● PARTNERSHIPS
700 North Tryon Street • Charlotte, North Carolina 28202 • Phone (704) 336-3821• Fax (704) 336-3839
www.meckpermit.com
TECHNICAL ADVISORY BOARD
Minutes of March 21st, 2012 Meeting
Joe Weathers opened the Technical Advisory Board (TAB) meeting at 10:30 a.m.
on Wednesday, March 21st, 2012.
Present: Imad Zeitouni, Joe Weathers, Lon McSwain, Brent Long, Jeffery Bame,
Keith Pehl, Bob Briggs for Mark Krouse, Donnie Jones
Absent: Billy Austin, Thomas Gentry, Richard Grubbs, Stephen Abernathy,
William Hass, Will Weaver, Willis Horton, Steve Daily
Guests: Heidi Pruess, Patrick Cerri
1. APPROVAL OF THE MINUTES
Minutes of the November 17th 2011 meeting will be emailed to the group
for approval and comments then discussed at the next regularly
scheduled meeting.
2. OLD BUSINESS
a. Update from Lon McSwain on Energy Code, Residential Code, IgCC
adoption and BCC information.
Lon
Energy Code and Residential Code are currently adopted as of March
first. Mecklenburg County was not successful in moving the adoption
dates out to June first. The codes are available on line at the ICC web site
for viewing and the Residential code is still on the DOI web site. We
will honor plans and permits submitted before the March first dead line.
Residential Code books are available now from DOI. Energy Code books
were available in January of this year. IgCC green code was adopted in
Phoenix and was adopted March first. The books are supposed to be
available in April. No movement on the IgCC from the BCC and it
looks like they are not going to entertain adopting codes until 2015.
TECHNICAL ADVISORY BOARD
Minutes of March 21st, 2012 Meeting
3. NEW BUSINESS
a. Handout discussion of the G-34 proposal from Terry Cobb
building official, Nashville, TN.
Discussion: Lon McSwain IgCC adoption information. Energy Code
Lon
Our objective in the meetings we have going forward will be to compare
the G-34 proposed change that was defeated at the IgCC code hearings to
the newly adopted IgCC which will be available in April 2012.
Pnl.
Question from panel: Are you in favor of the G-34 proposal.
Lon
We believe it is a document that would make the IgCC enforceable
because IgCC is not currently written in enforceable language for code
officials. I understand G-34 has been updated by the Cobb panel and we
will make sure we have the latest updates during our research.
Pnl
Where is the pressure coming from to adopt a state green code?
Can we not put it out as an optional code?
Lon
No. The state law requires us to have a top down adoption process. The
BCC sees this as a more stringent code than the energy code which they
just got through adopting and do not want to address again anytime soon.
The site issues in the IgCC tend to complicate the adoption and approval
of the code. It is my understanding that the adoption of the green code
makes the code mandatory. It is an overlay code to the energy code.
The 2012 Energy Code meets the goal of North Carolina being 30% more
energy compliant by 2017. The residential code is 15% compliant now
but it has to increase by another 15 % during 2015 code cycle to meet the
2017 energy efficiency mandated from the Federal Government.
Joe
There are free energy classes being given around the state that are very
good. I highly recommend attending one. I will email the panel with the
remaining dates and times. There are many electrical changes that are in
effect that involve testing before you can get CO and other technical
issues that will probably present a need for the TAB committee to get
involved in some decisions. The approval of the electrical code is still up
in the air. It has been suggested that NEC changes might have to wait
until the nest code cycle for approval.
TECHNICAL ADVISORY BOARD
Minutes of March 21st, 2012 Meeting
Lon
The electrical code does not have to be adopted until the last day of the
legislative session and no one knows when that will be.
4. BIM Update, Joe Weathers
The original BIM pilot project in Huntersville, the psychiatric hospital,
has been abandoned. We do have a new project that is having
preliminary meetings at the present time that will be submitted under our
collaborative review program and will serve as a new BIM pilot. We will
keep you updated on the progress of this project.
5. News on the EV program, Joe Weathers
I attended a seminar at UNCC on plug in vehicle stations. The latest
news is about a 500,000 grant from the Federal Government to create
public awareness. There are several state regional groups involved. The
issues range from ADA compliance at the charging stations to public use
issues, etc. It is my understanding the Chamber of Commerce is very
interested in being involved from a growth/job perspective.
I provided a TIP presentation to a group earlier this month and one of
the ideas was to have a statewide permitting program similar to TIP for
Electric Vehicle charging stations.
6. General discussion and panel comments
Pnl.
It seems to me it will take a lot of planning to see what we need to weed
out of the document.
Lon
That is why I provided the handout from the G-34 proposal. I hope a lot
of the weeding out work has been done by Terry Cobb’s group.
Pnl
In my opinion this is not the right time to move forward with the green
code. The economy is not in good enough shape to sustain the increase
building costs involved in using the code. There is a large cost involved
just to meet the new commercial energy code provisions much less the
added energy provisions of the green code. Do not make it a mandatory
TECHNICAL ADVISORY BOARD
Minutes of March 21st, 2012 Meeting
code . It could compete with leed, star etc. I believe there will be a lot of
gray areas for the committee to resolve if this is adopted.
Lon
Industry does not want to pay for leed. Our document could be an
alternative which would cost less and you would still get a green
building.
Pnl.
We know other states are adopting the IgCC. We should use the green
code as an incentive document.
Lon
We have the old green rebate program. We may be able to revise it when
we have the revenue to justify the program.
Pnl
Why was G-34 not adopted in Phoenix?
Lon
It was a combination of things. It had strong code support from the Dept.
of Energy, Manufacturers, and AIA. Phoenix has already adopted the
code and many smaller independent jurisdictions have adopted the code.
An example of difficult enforcement issues would be; the code has
provisions for going back in a building 5 years after completion to check
the energy savings to see if it matches the original approved design. The
building already has a CO. What is the building official going to do if it
does not pass? That is just one example of many.
Pnl
What if we simply merge the state energy code with the green code?
Lon
The BCC just adopted one of the toughest commercial energy codes in
the country. I do not believe they will be willing to re visit the energy
code until 2017. The next major change in the energy code is supposed
to take place in 2018.
Pnl
The com/check changes are drastic for the new energy code provisions.
Do you know what the plan reviewer will be checking for a com/check
calculation submitted for plan review? How will you know they are
putting in the correct numbers in the black box? I think you are going to
see a lot of com/check calculations that are questionable. It is a big cost
issue.
Lon
TECHNICAL ADVISORY BOARD
Minutes of March 21st, 2012 Meeting
There are ways to check the program. I find the wrong occupancy used
to calculate energy provisions as a major mistake. I believe we can find
most errors.
7. Adjournment.
Joe
If there are no more questions we are in the process of getting the books
and will keep you informed about the next meeting.
Residential Consistency
Land Use and Environmental Service Agency
(Code Enforcement)
1st Quarter Q&A 2012
General:
1.
(Q) What is required to get a final on a total demo by this department?
(A) The lot must be left in a safe, clean condition and graded within the foot
print of the building or structure to provide proper drainage. There is no
requirement by the Department to seed and straw. (01/04/2012)
2. (Q) When are CO detectors required to be installed in dwellings?
(A) CO detectors are required in dwellings that have fossil fuel appliances, fire
places or attached garages. Any existing all electric dwelling that does not
have a fire place or attached garage does not require CO detectors when
having new work done. (01/04/2012)
3. (Q)When are detached carports required to be permitted?
(A) Per DOI interpretation any carport larger than 12’ in any dimension is
required to be permitted. (01/04/2012)
4. (Q) Can foam insulation be used around can lights?
(A) NO, it must be held back away from the fixture at least 3”. None of the can
lights have been tested with foam insulation in contact with the fixture, even
the I/C fixtures. (01/04/2012)
5. (Q)Are other permits required other than a building permit on a residential reroof?
(A) Yes, if there are “B” vents or power vents involved in the reroof then a
mechanical permit or electrical permit or both may be required.
(01/04/2012)
6. (Q) What should the inspector obtain to pass the residential elevator installation?
(A) A letter from the elevator installer that the elevator has been installed per the
standard for elevator installation for both the building and electrical.
(02/01/2012)
7. (Q) Is phased construction allowed in residential construction?
(A) No, if work is to be done at different times then it must be under separate
permits. (02/01/2012)
8. (Q) Are house numbers required to be posted for a final on an addition or renovation?
(A) No, under the 2009 Residential Code there is no requirement for house
numbers to be posted except for new construction. (02/01/2012)
9. (Q) Can a 4X4 post be notched to fit around the band?
Residential Q &A
st
1 Quarter 2012
Page 2
(A) No, the bolts must go through the full thickness of the 4X4.
10. (Q) When a Superior Wall System is used does it have to be damp proofed or water
proofed?
(A) No it does not when a Soil Engineer provides a letter about soil conditions
that identifies the specific site as not having a high water table or other
moisture issues as listed in R406.2 and no damprooffing when they follow
their ICC report. (03/07/2012)
Most of the March meeting was taken up with the introduction of new requirements
of the 2012 Residential Code and Jim Bartl spoke about the adoption and implementation
date of the 2012 Residential Code.
MECKLENBURG COUNTY
Land Use and Environmental Service Agency
Code Enforcement
Technical Advisory Board
A Standing Committee of the Building
Development Commission
• TAB Meeting Quarterly Report
(Notes from the meeting held on March 17th, 2012.)
January 1, 2012 through March 31, 2012
PEOPLE ● PRIDE ● PROGRESS ● PARTNERSHIPS
700 North Tryon Street • Charlotte, North Carolina 28202 • Phone (704) 336-3821• Fax (704) 336-3839
www.meckpermit.com
MECKLENBURG COUNTY
Land Use and Environmental Service Agency
Code Enforcement
Technical Advisory Board
A Standing Committee of the Building
Development Commission
• TAB Meeting Quarterly Report
(Notes from the meeting held on March 17th, 2012.)
January 1, 2012 through March 31, 2012
PEOPLE ● PRIDE ● PROGRESS ● PARTNERSHIPS
700 North Tryon Street • Charlotte, North Carolina 28202 • Phone (704) 336-3821• Fax (704) 336-3839
www.meckpermit.com