The Los Angeles City Council has voted unanimously to require “cool roofs” for all new and refurbished homes, becoming the first major U.S. city to do so. “Cool roofs” incorporate light- and heat-reflecting building materials, which can lower the surface temperature of the roof by up to 50 degrees F on a hot day, according to Climate Resolve, the local organization that pushed for the ordinance. Such roofs do not necessarily need to be white, the Global Cool Cities Alliance says; they can also be shades of gray, or even red. Research suggests that by mid-century temperatures in Los Angeles will increase by 3.7 to 5.4 degrees F, with the number of days above 95 degrees F tripling in the city’s downtown. “The changes our region will face are significant, and we will have to adapt,” said UCLA scientist Alex Hall, who led the research. The cool roof mandate will not cost homeowners additional money because of expanded incentives.
On October 3, 2013 the International Code Council (ICC) approved final action RB473-13 as a new Appendix R in the upcoming 2015 version of the International Residential Code (IRC).
The approval marks the latest advance of straw bale construction in the building codes and permitting process. It is the highest approval to be granted for the construction method and will be adopted by thousands of jurisdictions around the United States in and after 2015.
The process of creating the IRC appendix was spearheaded by Martin Hammer of Builders Without Borders representing the California Straw Building Association, the Colorado Straw Bale Association, the Straw Bale Construction Association –New Mexico, the Ontario Straw Bale Building Coalition, the Development Center for Appropriate Technology and the Ecological Building Network.
Thousands of hours of work have been donated by Martin and various individuals within the straw bale construction community to make this milestone a reality. We thank all of them for their hard work and look forward to even more widespread acceptance of straw bale building in the construction trades.
For details and a link to a copy of the appendix, visit TheLastStraw.org. A huge thanks to the hard-working bale heads that spent years making this happen!