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
| Jul 5, 2013
Some industry insiders see design-build as easier path to LEED certification
The design-build construction delivery method may have advantages during a LEED certification process.
| Jun 27, 2013
Lease-accounting legislation could hurt construction industry
Regulatory bodies have proposed changes in how leased equipment is treated on a corporate balance sheet.
| Jun 27, 2013
AGC urges Congress, Obama to reject caps on construction workers in immigration legislation
The unemployment rate in the construction sector in May was the lowest it has been in five years, which could signal a coming worker shortage, according to the Associated General Contractors of America.
| Jun 27, 2013
California legislators make push for prevailing wage law
California lawmakers introduced new legislation that would cut off state construction funds from charter cities that don’t mandate the equivalent of union-scale wages on public-works projects. Of the 482 cities in California, 121 are charter cities.
| Jun 27, 2013
Thermal, solar control designs can impact cooling loads by 200%, heating loads by 30%
Underestimating thermal bridging can greatly undermine a building’s performance contributing to heating load variances of up to 30% and cooling load variances of up to 200%, says the MMM Group.
| Jun 27, 2013
U.S. Conference of Mayors passes new sustainability resolutions
The U.S. Conference of Mayors (USCM) passed a slate of sustainability resolutions that renew its commitment to local green building and clean energy efforts.
| Jun 19, 2013
NSF Sustainability begins verifying EPDs that can be used for LEED V4
NSF Sustainability has verified Environmental Product Declarations (EPDs) for nylon carpet styles and colors manufactured by Mannington Commercial and for J+J Flooring Group’s Kinetex® flooring product and Invision brand modular styles that use eKo® backing.
| Jun 19, 2013
Florida is latest battleground over LEED standards centered on certified wood
A nationwide battle over forest certification standards continues to be played out nationally and in Florida with legislation passed this month.
| Jun 19, 2013
Construction site safety improved in 2011
On-the-job construction fatalities dropped from 802 in 2010 to 781 in 2011, and recordable injuries fell from 4.7 per 100 workers in 2008 to 3.9 per 100 in 2011, according to data from the Bureau of Labor Statistics.
| Jun 19, 2013
New York City considers new construction standards for hospitals, multifamily buildings
Mayor Michael Bloomberg’s administration has proposed new building codes for hospitals and multifamily dwellings in New York City to help them be more resilient in the event of severe weather resulting from climate change.
