Beyond the sprinkler issue, multifamily builders can expect to see changes in other areas. Among them:

• Wall and Roof Cladding Inspections. For multifamily builders, the new International Building Code will require wall and roof cladding inspections in high-wind regions. While this may seem sensible in light of the damage that has been observed in hurricanes, the requirement itself is vague and does not specify what elements of the wall and roof cladding system need to be inspected.
  
  This could lead to building departments requiring in-plant inspections for shop-fabricated elements of wall and roof cladding systems, even if those elements are pre-tested and labeled for high-wind resistance and even if the fabricating shop is hundreds of miles from the job site.
  
  
• IECC Code Changes. Multifamily builders will also see changes in glazing requirements under the IECC. Each unit will only be allowed a maxiumum of 15% glazing, down from 18%. In previous versions of the International Energy Conservation Code, builders were permitted to make so-called “equipment trade-offs” when using the performance path — such as substituting a high-efficiency furnace for additional insulation or more expensive windows. The change eliminates that option for home builders, requiring them to make changes in the building envelope to meet code.
  
  View the full list of  changes in the October 20 issue of NBN.

The U.S. Department of Energy has said that homes constructed under the 2009 IECC will save at least 15% to 20% more energy than homes built under the 2006 version of the code. A summary of the code process on the agency’s Web site praises NAHB and energy conservation groups for technical assistance in preparing the code proposals.

For more information, e-mail Calli Schmidt at NAHB, or call her at 800-368-5242 x8132. [return to top]