Building Code Board of Appeals Agenda and Packet 2009 09 17

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2009 INTERNATIONAL RESIDENTIAL CODE 1. Definitions of stair and stairway have been added to the International Residential Code and will now match the definition located within the International Building Code. 2. A new code section will require the field inspector to measure the dimensions of stair risers and treads exclusive of carpets, rugs, or runners. We will be suggesting an amendment to delete carpets from this new section since our field inspectors will need to be measuring these dimensions at time of building completion and the carpet is always installed at that time. This will also allow the field inspector to make sure that the allowable tolerances are met between carpet and hard surfaces such as wood or tile which all can have much different thicknesses. 3. Guards are required to be located at the edge of a walking surface when the change of elevation from the walking surface is over 30" above the adjacent lower surface. There is new wording that requires the field inspector to measure out 36" horizontally from the edge and then measure down to lower surface when determining if it is over 30" difference. There is also new wording that will require the field inspector to measure off the surface of the deck or the height of seating when determining if it is over 30" difference. This would be done when there is built in benches/seating along the edge of a deck. 4. There is a new code section that will require an approved fire sprinkler system in all new townhomes and new single family homes. The requirement for new townhomes will be effective upon this code adoption date and the requirement for new single family homes will be effective on January 1,2011. This fire sprinkler system can be designed and installed by either an approved fire sprinkler contractor or by a licensed plumbing contractor. If done by fire sprinkler contractor North Metro Fire District will be required to review, approve, and inspect these systems. If done by licensed plumbing contractor the Building Department will be able to review, approve, and inspect these systems. These systems will not be required to have a separate service line from the street but will be able to tie into the domestic line for the house or townhome. It should be noted that fire sprinklers will not be required for permits for additions or alterations. 5. There is a new exception in the existing code section to install smoke alarms for all interior remodel and alteration permits. The exception will be for permits for mechanical and plumbing work.