Building Consistency Meeting
Residential
Date: 8/4/2004
Recorder: Danny Wooten, minutes prepared by: Jeff Griffin
Staff present: Jeff Griffin; Jim Mullis; Gene Morton; Harold Sinclair; Ron Dishman;
Danny Wooten; Steve Kellen; Kirk Aten
Public present: Bob Mckee(Ryan); Stu Jelenick (Greenfiber); Mike Mcgee (Mcgee
Bros); Wayne Carter (Mulvaney Homes); Frank Burke (Grimmer-Kempf & Assoc);
Bob Otto (R.E. Otto & Sons, Inc-NARI); Jim Welsh/Lee Daggerhart (BRI of
Charlotte); David Schwiemon (Public); Patty Springer (WR Grace); Edwin Woods
(Centex Homes); Duane Johns (Advanced Renovations); John Andrejko/Jeff Kieffer/
Wanda McCarthy (Eastwood Homes); Shawn Polakiewicz (Saussey Burbank); Scott
Dirkschneider/Trent Basso (Meeting Street); James Welsh (BRI); Max Smith
(Westfield Homes).
Topics/Subject
Decisions/Conclusions/Actions
Old
Business
Reviewed roof
ventilation
issues
Last month we passed out a formal interpretation that is on DOI’s
website in dealing with residential attic space ventilation requirements.
A few days later and before the minutes went out this issue was
discussed in detail with the state and some application concerns and
how to handle. This meeting reviewed the July minutes citing examples.
Rafter notching Discussed the issue with rafter notches again and that the overhang is
considered a Cantilever per DOI. Section 802.7 also indicates as a
cantilever and that the remaining portion of the rafter cannot be less
than 3 ½”net. This issue needs to be watched closely in the field and
measurement must be taken from end of saw cuts. Some rafters bearing
full 3 1/2 “ on walls are being cut incorrectly and builders asked to
discuss with framers. See attached drawings below for example.
Insulation
Issue was brought up again about where this stands with the building
Vapor Barrier
code council as far as removal of requirement from code. This will be
discussed at the September 13 & 14 meeting in Hickory and appears
that council is in favor of moving this issue forward. Will advise of any
changes.
New
Business
Suspended
deck stair
stringers
Issue rose about suspended deck stair stringers and how they should be
permanently attached. There is no specific reference to this application
in appendix M but based on several sites that have had problems simply
nailing will not support stairs in some applications. The attached photos
are a representation of the problem; these stairs were to a new deck only
8 months old when they fell. This is an issue where the stringers are
nailed to a suspended band board below the outer floor joist (usually
with drop 2x6 vertical boards) to use this joist as the last riser in a flight
of stairs. These applications will need to be bolted with ¼” or 3/8”
galvanized through bolts with nuts and washers. Also the outer floor
joist will need to be restrained against rotation at tension side of
member (bottom) to prevent stringers that are nailed from coming loose.
Proper anchorage at the base of the stairs is also important to prevent
movement. A formal interpretation is being reviewed on this issue.
Inspectors have been advised to look for the above on future inspections
to insure that application will remain in place.
ASTM E-2112
flashing
requirements
Partial footer
pours (cold
joints)
Garage lug
interior
sheathing
application
Discussed the new reference standard that was approved by the NC
Building Code Council at their June meeting (see minutes attached).
Please note that according to the language that in the absence of MFG
installation instruction that the ASTM E-2112 standard will apply. If
you’re a builder who has a tested product in which the MFG provides
specific flashing requirements for installation (like many vinyl
windows), those instructions will apply. This Standard will be listed
in the text R708.3 and reference standards Chapter 43.
Discussed the concern with partial footer pours. For residential
construction all footers should be ready for complete continuous pour.
This would include townhouse, in some cases approved by field
inspector, a partial pour can be allowed if the cold joint in footer is bulk
headed off and proper steel to tie together is placed. Normally in
required 2000 psf load conditions this consists of 2-#4 bars 10’ (usually
a 20’ bar cut in half) as a standard engineering practice for the cold
joint, this needs to be discussed with inspector for specific site
conditions. For loads above 2000psf a soil engineer is required to
specify how cold joints will be handled in footer. When approved by the
inspector the bulk heads and steel must be in place.
Discussed inspection procedure for garage lugs that require OSB
sheathing on the interior per DOI allowance of reduced brace panel
length (50%) rule. In order for us to see the header, jack studs and
anchors at the lugs this plywood must be left off at frame check. It can
be very loosely nailed in place (1 side, 2-3 nails) so that plywood/osb
can be pulled back to check, this was a concern raised by 1 builder as to
material theft issues. Keep in mind that these structural elements must
be visible for frame check, at insulation time all interior required
sheathing must be completely installed and nailed off.
Next meeting is on September 1st in Woods conference room at 8:00am, 700 N. Tryon
St.