The American Architectural Manufacturers Association (AAMA) has updated a standard that providing guidance for installing fenestration products.
AAMA 812-19, “Voluntary Practice for Assessment of Frame Deflection When Using One Component Polyurethane Foams for Air-Sealing Rough Openings of Fenestration Installations,” was last updated in 2010. One component polyurethane foams have sometimes been associated with frame deflection of fenestration products.
This can result from either misapplication or the use of foams not suited to the purpose. One component polyurethane foams have been developed specifically for application with fenestration products to eliminate these incidents.
“The AAMA 812 has been updated to clarify foam physical properties, enhance sample preparation, testing and measurement procedures, and include requirements for reporting of test results,” said Beverly Selle (Dow Chemical Company), chair of the AAMA 812 Insulating Expanding Foams Task Group, in an AAMA news release.
The standard identifies pressure build and dimensional stability as the key attributes that contribute to deflection of fenestration products resulting from the use of one component polyurethane foams, and provides test protocols for assessing these key attributes.
Related Stories
Codes and Standards | Mar 21, 2019
New York City contractors adding 5% to 10% to construction costs due to trade war
Tariffs on steel, aluminum, and other materials swell budgets.
Codes and Standards | Mar 20, 2019
Codes organizations to develop new guidelines on shipping containers as building components
Intl. Code Council and Modular Building Institute combine forces.
Codes and Standards | Mar 19, 2019
Plan for transformation of Lower Manhattan streetscapes unveiled
Pedestrian-friendly “Slow Streets” pilot starts on Earth Day 2019.
Codes and Standards | Mar 15, 2019
Newly developed building materials could have big impact on sustainability
Transparent wood, self-cooling walls, bricks that filter air pollutants among the technological breakthroughs.
Codes and Standards | Mar 14, 2019
U.S. and Canada differ on how to evaluate field performance of windows, curtain walls
Variations include laboratory test method for determining rate of air leakage.
Codes and Standards | Mar 13, 2019
Climate change can’t be stabilized without addressing urban sprawl
Even if power goes green, transportation will still be a major emissions source.
Codes and Standards | Mar 12, 2019
Virginia county hones new rainwater harvesting standard
Developer prompts new rules to use rainwater for heating and air conditioning.
Codes and Standards | Mar 8, 2019
Portland delays requirement for posted warnings on unreinforced brick and stone buildings
Regulation would mandate signs warning that buildings could be unsafe during earthquakes.
Codes and Standards | Mar 7, 2019
California will allow flame retardant-free building insulation
State also repeals business furniture flammability standard.
Codes and Standards | Mar 6, 2019
Sixty six construction companies cited for wage theft violations in Massachusetts
Penalties total $2.7 million.
