Building Consistency Meeting Residential Date: 3/5/2008 Recorder and minutes prepared by: Steve Kellen/Jeff Griffin Staff present: Gary McCracken, T. Druied Roberson, Andrew DeMaury, Randy Newman, Mike Creech, Yates Smith, Rob Ellis, George Rogers, Steve Kellen, David Williams, Ron Dishman, Harold Sinclair, Walt Nash, Michaels Johnson, Ken Turill, Patrick Biddy, Mark Wyte, John Hyman, Andy Herring, Tony Kiser, Eric Brown. Public present: Chris Newton/Hans Kasak/Harold Ingram (Ryland Homes), Daniel McBride (Cunnane Group), Darren Price/Michael Skinner (M/I Homes), David R. Schwieman (D.R. Schwieman), Kent Bublitz (Royce Builders); Jeff Dotson/Bo Maney (Eastwood Homes); Lou Salvador/John Martin (DR Horton); Chad Hughes (Barefoot and Co) Jim Brodnik (Mattamy Homes); Michael Gervais PE (Intelligent Design Engineering); Jason Horten (Parksite); Mike Skinner (M/I Homes); Chris Tucker (Southern Stair Case); Rod Spence/Ken Smith (Banister Homes); George Harrison (GTSI); Ryan Fitzgerald (DW homes); John Meeks (Apple Blossom Ins); Dave Reynolds (Bldrs 1st Source); Tony Whitehead (McCar Homes); Will Reeves (Wynsor Homes); Jason Whitener (Dienst Custom Homes); Johnny Webster (Calloway Homes). Topics/Subject Decisions/Conclusions/Actions Old Business Full residential Reminded the group that effective March 3rd Mecklenburg County is plan review now doing full plan review on all new residential structures. The following is a list of the requirements for review: NEW RESIDENTIAL PLAN REVIEW REQUIREMENTS STARTING MARCH 3, 2008 Residential projects that meet the following conditions will require plan review: • Full building review on all townhouse projects, including footprint additions or structural modifications. A per unit Master Plan Program is available; buildings are not eligible. • All new one and two family residences • Any enclosed addition to the primary residence, which increases the footprint of the primary residence. This excludes decks and screen porches. • Interior renovations projects valued equal to or greater than $175,000 • Projects of unconventional building methods (methods outside of the NC Residential Code) ADDITIONAL INFORMATION AVAILABLE PLEASE CALL 704-432-7822 New Business 2008 Residential handbooks A new residential handbook has been produced to go along with the NC 2006 Code. This book has been updated and some additional drawings have been added. Also found are new span tables and header/girder/cantilever tables listed in the Code. This book was handed out to the group as a draft, there are some printing errors to include the index. Builders were asked for additional feedback to make all corrections and get as much information included as possible. New books will be ready for distribution at the April. Appendix M NC Deck Code Pools and Spas Bow/flared stair treads Circular stair requirements Currently we are working on a Code change proposal for a new appendix M dealing with Decks and screened in porches in NC. A copy of this amendment will be distributed to the group for comment and review prior to submitting to the Building Code Council for approval and should be available shortly. Appendix G is now a requirement under the Code as listed in section R101.2 dealing with pools and spas. In order to get this information to the general public a brochure on requirements of the State residential Code and the Mecklenburg County Health Department is being produced. This brochure is just about complete and should be available shortly for distribution. After completion of this brochure a inspection checklist will be produced and made available on line. There is an issue related to decorative stairs that has come up in the field that is not identified in the code. This issue has to do with a flared stair tread at the bottom of a flight of stairs. Flaring a stair creates a nonuniformed stair tread at the bottom of a flight and is not allowed under current language of the Code. Issue is being discussed with one of the local stair manufactures and a possible Code amendment may be proposed shortly dealing with allowance for the 1st 3 steps in a flight of stairs to be flared and uniformed with each other but not with the standard treads. Currently no flared stair treads should be installed on an any stairway, exterior or interior. Question asked about how to treat circular stairs since the new Code has no language that modifying a circular stairway. According to the language of the code and the commentary a circular stair is simply a stairway that uses winder treads and the requirement for minimum on the narrow side and uniformity at the 12” walk line are the requirements that apply to the circular stairs. Circular stair treads are to be treated as winders treads in a flight. Only error in the commentary is that in NC this 12” tread depth is required to be 9” not 10” as shown per R311.5.3.2 Energy star homes There was a question asked from several builders that are going to an energy star home program. In so doing several areas of the home like behind the fireplace and tubs will be encapsulated with an interior stud wall covering (which is not typically done behind these fixtures). Issue of concern is how will frame and insulation be inspected for these areas when they will be covered up at frame check. Issue was discussed with building staff and management and the best option available for those builders using this program will be to coordinate with their inspector to include these areas for review at a sheathing inspection. If builder is not currently using the optional sheathing inspection they will need to do so in order for these areas to be inspected, prior to a full frame inspection, so they can be covered up. Builder will need to make sure and communicate that their inspector and inspector will need to document specific review of those areas in their notes Plan review vs. field inspections Storage buildings on townhouses with less than 4’ of roof line Decorative shrouds on fireplaces (factory built) Balloon framed walls-plate to plate construction Question was asked about having a set of plans that was reviewed and when built in the field there was a Code violation caught by field staff that was not noticed on plan review. Issues that are found in the field are being communicated back to the review staff but any issue that is a code violation still must be corrected prior to inspection field approval. Field inspectors have final call on the as built field product and the Department has worked with the industry when this is encountered not to charge a builder for that failed item. Question asked about a small storage unit that doesn’t have a 4’ width and the code requirement for the first 4’ of roof off a party wall separating townhouses to have fire retardant treated plywood. There is no requirement for that to be built to a minimum of 4’ if the storage unit is only 3’ wide then all of the roof surface must be protected but can stop at 3’. The Code would not require all storage units to be built to a minimum of 4’ width but would require the roof to be protected up to first 4’ instead of providing a parapet between structures. Field issue came up in dealing with a decorative shroud being installed on a factory built fireplace. Only shrouds that have been tested are allowed per Chapter 10: Question asked about stacking walls on top of each other if considered Balloon framing or stud heights greater than 10’ are allowed per table R602.3.1 (see below). Walls heights are based upon continuous stud lengths from plate to plate and stacking wall sections or a wall and kneewall combo, create hinge joints in the all assembly and are not allowed under the Code unless approved by engineering design. Some typical engineering designs that have been allowed have been when hinge connection is backed up by porch roof line or when sheathed with all osb/plywood with proper laps of seams. Any break in wall height should be designed according to acceptable engineering practices.