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
Codes and Standards | Sep 14, 2017
Gentrification means a new mindset for city planners
Rising rents elicit reexamination of zoning principles.
Codes and Standards | Sep 13, 2017
OSHA issues extension for compliance with crane operator certification requirements
Comments on proposed rule sought through Sept. 29.
Codes and Standards | Sep 12, 2017
Washington, D.C. is first LEED Platinum city in the world
All city government buildings are powered by renewables.
Codes and Standards | Sep 11, 2017
Natural solutions would be most effective flood resilience policies for Houston
New green infrastructure should be part of rebuild.
Codes and Standards | Sep 8, 2017
Los Angeles luxury high-rise is first U.S. apartment building to achieve WELL Multifamily certification
Hollywood Proper Residences have verified indoor air and water quality features.
Codes and Standards | Sep 7, 2017
More than half of Houston properties at high or moderate risk of flooding are not in FEMA flood zone
Properties outside of these zones are not required to carry flood insurance.
Codes and Standards | Sep 6, 2017
Seventy percent of contractors have trouble finding workers
AGC survey indicates that fewer companies may be able to bid on projects.
Codes and Standards | Sep 5, 2017
New CTBUH initiatives to investigate link between fire and façades
In wake of Grenfell tragedy, Council forms new workgroup.
Codes and Standards | Sep 1, 2017
U.S. markets with the largest hotel construction pipeline
New York has the largest hotel construction pipeline of any U.S. market.
Codes and Standards | Aug 30, 2017
Trump rescinds elevation requirements for federally funded buildings and infrastructure
Flood protection on subsidized housing, hospitals, and other public buildings rolled back.
