The new International Building Code now allows for the use of weather-resistive barriers above 40 feet high.
Code restrictions had been designed to limit the use of combustible materials that might propagate flames. In the 2015 update, however, exceptions are allowed that recognize that in certain circumstances a weather-resistive barrier by itself would be a negligible contributor to the spread of flames.
This change should result in an energy efficiency boost in cases where builders have had to transition to less efficient methods of weather sealing above 40 feet. Weather-resistive barriers are now allowed in walls in which the water-resistive barrier is the only combustible component and the exterior wall has a fire-resistant wall covering of brick, concrete, stone, terracotta, stucco, or steel.
The material can also be used in walls in which the water-resistive barrier is the only combustible component and the water-resistive barrier has certain heat, flame spread, and smoke properties in accordance with ASTM E 1354 and ASTM E84 or UL723.
Related Stories
| Jan 8, 2013
Montana developing high-performance building standards for state projects
The Montana Department of Administration is developing a single building standard for all state facilities, and hopes to have a plan in place this spring.
| Jan 4, 2013
AGC economist says "fiscal cliff" deal will give construction a boost
The deal in Congress to avoid going over the so-called fiscal cliff "should encourage many businesses to go ahead with projects they have held in reserve," said Ken Simonson, chief economist of the Associated General Contractors of America.
| Jan 4, 2013
California standards on furnishings, insulation to be revised
California is revising the state’s standards on interior furniture and insulation to maintain or improve fire safety while reducing or eliminating the use of toxic chemicals.
| Jan 4, 2013
Tilt-Up Concrete Association releases new temporary wind bracing guidelines
The Tilt-Up Concrete Association has released revised guidelines on Temporary Wind Bracing of Tilt-Up Concrete Panels During Construction.
| Jan 4, 2013
San Diego office tower to be America's biggest net-zero building
The 13-floor, 415,000 sf La Jolla Commons II office tower in San Diego will be the largest building in the U.S. built to the net-zero standard upon completion in 2014, according to real estate firm Hines.
| Jan 4, 2013
Manchester, England building achieves highest BREEAM rating in U.K.
One Angel Square in Manchester, England, is the highest scoring outstanding building for the Building Research Establishment Environmental Assessment Method (BREEAM) in the U.K.
| Dec 27, 2012
Pentagon eases leasing standards established in 9/11 aftermath
The Pentagon has eliminated the stringent real estate leasing standards it put into place following the Sept. 11, 2001, terrorist attacks, reverting back to a version widely used by federal civilian agencies.
| Dec 27, 2012
Google provides USGBC with $3 million grant to transform building materials industry and indoor health
Google has contributed a $3 million grant to the U.S. Green Building Council (USGBC) to help transform the building materials industry and accelerate the creation of healthier indoor environments.
| Dec 27, 2012
Former industrial French city reshapes itself according to ambitious green standards
Nantes has a strong commitment to address challenges such as urban sprawl and carbon dioxide emissions.
| Dec 27, 2012
New York City law tracking building energy use yields surprises
A legally mandated report that tracks the energy use of New York City's largest buildings provides details about which buildings are achieving higher-than-expected energy efficiency, such as the Chrysler and Empire State buildings, as well as those that are performing poorly.