Building Consistency Meeting
Residential
Date: 5/2/12 Recorder and minutes prepared by: Danny Wooten/Jeff Griffin
Staff present: On file.
Public present: Greg Sloan (Ryland Homes); Kenny Childers (Cornerstone Bldrs);
Adam Kuhn (Advanced Framing); Curt Curtis (True Homes); Brent Turell (Pulte
Homes); Ryan Meevwsen (MI Homes); Mike Winn/Jonathan Hess (NVR, Inc); Bill
Green (Barefoot and Company); John Mecks(Apple blossom Insulators); Chris
Carroll (Place Crafters, LLC); Brian Hall (Classic Homes); James Nelson (Shea
Homes); Darrell Fries (Standard Pacific Homes); Steven Brusko (Landis Reed
Homes); Daniel McBride (Cunnane Group); Jeff Gerdes (Livewell); Dave Reynolds
(Bldrs 1st Source); Marc Austin (Ryland Homes); Jerry Andersen (Ryan); Bank
Perkins (Shea Homes); David R. Schwieman (DR Schwieman, Inc); David Tyson
(David Tyson & Assoc. Inc.); Mark Wattler; Ken Smith/Rod Spence (Banister
Homes); Allen Terwilliger (Lennar Homes).
Topics/Subject
Decisions/Conclusions/Actions
Old
Business
None
New
Business
2012 Code
Book
Discussed the layout of the new book which includes other codes
towards the back that are abridge from mechanical, plumbing, fuel/gas
& electrical. Because the other codes were inserted in the abridge
format you might find 2-3 of the same chapter #’s like there might be 3
chapter 3’s through the book but they apply to different codes like a
chapter 3 for building, chapter 3 for mechanical and a chapter 3 for
plumbing. Recommend tabbing books to prevent getting into the wrong
code section when looking up chapters. Also discussed that there are
several errata’s in the first printing of the book and DOI now has posted
on their website information on printing errors that you should
download and mark your code book if it’s the first printing future
printings will have corrected information in them, site location is listed
below:
http://www.ncdoi.com/OSFM/Engineering/BCC/Documents/Errata/NC
ResidentialCode.pdf
CO detectors
Language in the printed 2012 code book is in error due to the retraction
of the approved CO requirements by the rules review committee at the
State level. The NC legislature had already approved in the general
statutes requirements for the CO detectors and in so doing modification
to that language is not possible however the inclusion of that language
can be placed in the NC building codes. The best information we
currently have on what should be required is as indicated below:
R315.1 Carbon monoxide alarms. In new construction, one-and twofamily dwellings and townhouses within which fuel-fired appliances or
fireplaces are installed or that have attached garage shall be provided
with an approved carbon monoxide alarm installed outside each
separate sleeping area in the immediate vicinity of the bedroom (s) as
directed by the alarm manufacturer.
R315.2 Where required-existing dwellings. In existing dwellings, where
interior alterations, repairs, or additions requiring a building permit
occur, or where one or more sleeping rooms are added or created, or
where fuel-fired appliances or fireplaces or garages are added or
replaced or exist, carbon monoxide alarms shall be provided in
accordance with Section R315.1.
Exception: Work involving the exterior surfaces of dwellings, such as
the replacement of roofing or siding, or the addition or replacement of
windows or doors, or the addition of a porch or deck, or the installation
of a fuel-fire appliance that cannot introduce carbon monoxide to the
interior of the dwelling, are exempt from the requirements of this
section.
R315.3 Alarm requirements. The required carbon monoxide alarms
shall be audible in all bedrooms over background noise levels with all
intervening doors closed. Single station carbon monoxide alarms shall
be listed as complying with UL2034 and shall be installed in
accordance with this code and the manufacturer’s installation
instructions. Battery powered, plug-in, or hard-wired alarms are
acceptable for use.
Fire separation
distance R302
A General layout of the current requirements of the 2012 code related
to fire separation distances including when soffit protection and/or
rating is required was produced and sent out, a copy of which is
attached to the minutes. This information will be posted on our website
under publications.
Wall Bracing
There are significant changes to the 2012 code in dealing with wall
bracing, this has been discussed and in order to make sure that a
structure meets one of the methods new information will be required on
set of plans sent in for plan review, general sample was given out and is
attached to the minutes for review. Information that clearly notes the
bracing method, location and proposed wall lines is required for
residential plans going through plan review.
Chapter 11
fenestration
exemption
Question was asked if the 15 square foot fenestration exemption was
still allowed, currently this is in section N1102.3.2. A specific product
that was a block picture unit used for garden tub areas was present for
discussion. This glass block fenestration product meets the maximum
square footage and would be approved. This exemption applies to the
entire house and all windows and door openings.
Designing new
builders
certificate
Closed attic
option for
Cellulose and
fiberglass
2012 Code
Update class
Builders sample certificate found in appendix E dealing with the energy
code requirements has be reformatted and is loaded on our website for
review and usage, this is a word document so that fields can have
information insert in the appropriate sections specific to the builders
home.
There is some new language in the code that allows under certain
conditions for a sealed attic or rafter cavity and the use of either
fiberglass or cellulose if installed correctly. Details of this option were
reviewed as listed below:
The Charlotte HBA is sponsoring a class to be taught on June 11th at
CPCC on the 2012 code see the attached link for further information:
https://mail.mecklenburgcountync.gov/exchweb/bin/redir.asp?URL=htt
p://www.hbacharlotte.com/event_display.cfm?eid=321
Builders sample certificate, please complete
appropriate sections and can print any legible
size. Certificate must be posted on site for final
inspection (please remove this note).
ENERGY EFFICIENCY CERTIFICATE
N1101.9
(Certificate is required to be posted on electrical panel box, kitchen
cabinet, attic with insulation installers certificate or other approve
location)
Builder, Permit Holder or Registered Design
Professional
Print Name:
Signature:
Property Address:
Date:
Insulation Rating-List the value covering
largest area to all that apply (as
applicable)
RVALUE
CEILING/ROOF
WALL
FLOOR
CLOSED CRAWL SPACE WALL
SLAB
BASEMENT WALL
FENESTRATION:
RRRRR-N/A
R-
U-FACTOR
SOLAR HEAT GAIN COEFFICIENT (SHGC)
BUILDING AIR LEAKAGE
U-0.35
U-0.35
___ VISUALLY
INSPECTED ACCORDING TO N1102.4.2.1 or
___ BLOWER DOOR TEST ACCORDING TO N1102.4.2.2
ACH50 [Target: 5.0] or CFM50/SFSA [Target: 3.0]
NAME AND ADDRESS OF TESTING COMPANY/INDIVIDUAL:
DATE:
DUCTS:
PHONE: (
)
-
DUCT INSULATION-UNCONDITIONED AREAS
DUCT INSULATION –SEMI-CONDITIONED AREAS
TOTAL DUCT LEAKAGE TEST RESULT
(SECTION N1103.2.2)
R-8
R-4
(CFM25 TOTAL/100SF) [TARGET: 6]
NAME AND ADDRESS OF DUCT TESTING COMPANY/INDIVIDUAL:
DATE:
PHONE: (
)
-
CERTIFICATE TO BE PERMANENTLY DISPLAYED