The American Architectural Manufacturers Association (AAMA) updated a document for evaluating the performance and durability of rollers used in the operation of sliding doors and lift and slide doors.
AAMA 906-18, "Voluntary Specification for Sliding Door and Lift and Slide Roller Assemblies," was first released in 2005 and was last updated in 2015. "The 906 document was updated to reflect testing of large weight capacity rated sliding door rollers," said Jan Huml, chair of the AAMA 906 Lift and Slide Roller Assemblies Task Group.
“We changed the dwell cycle time because test labs were concerned about injuries during testing, with rollers being tested at weights up to 1,500 pounds per pair with fast dwell speeds,” Huml said. A panel weighing up to 1,500 pounds operates at slow operating speeds in the real world, which the new dwell time changes address, he added.
Representative samples of the door rollers are evaluated for performance at the weight rating specified by the roller manufacturer by cycling the rollers under load for 10,000 cycles. Clearance and operating force measurements are taken before and after the cycle test to ensure performance remains within specified tolerances.
Related Stories
| Feb 17, 2014
Channeling weather forecasts to building systems can yield significant energy savings
Using weather forecasts to predict outdoor temperature changes can lead to significant energy savings, exceeding 10%, researchers say.
| Feb 17, 2014
Lawmakers may take away control of Florida hospital project from the VA
The project is $100 million over budget and has missed its scheduled completion date.
| Feb 17, 2014
Business, labor at odds over toughening of OSHA silica dust rule
OSHA says the rules will protect workers and prevent 700 fatalities annually. Others say the rules would hurt businesses and jobs.
| Feb 17, 2014
Tulsa, Okla., mulls code change to require storm shelters in new schools
State and city officials are pushing for increased bonding capacity to pay for the storm shelters.
| Feb 13, 2014
Appraisal Institute issues guidelines on evaluating green property
The Appraisal Institute and the Institute for Market Transformation have issued guidelines for training property appraisers to evaluate green buildings.
| Feb 7, 2014
New LEED Dynamic Plaque system will measure building performance
The U.S. Green Building Council recently unveiled the LEED Dynamic Plaque, which is a new system designed for benchmarking and comparing post-occupancy building performance on a global scale.
| Feb 7, 2014
Los Angeles officials struggle to deal with needed seismic retrofits
Sixteen years ago, the Los Angeles City Council decided against requiring retrofits of existing buildings because of the projected cost and the threat of losing 20,000 apartment buildings.
| Feb 7, 2014
Los Angeles officials struggle to deal with needed seismic retrofits
Sixteen years ago, the Los Angeles City Council decided against requiring retrofits of existing buildings because of the projected cost and the threat of losing 20,000 apartment buildings.
| Feb 7, 2014
EPA, Freddie Mac collaborate on energy- and water-efficient apartments
Freddie Mac will gather data on energy and water use from property owners, and encourage lenders to spend on energy-efficient investments for multifamily housing.
| Feb 7, 2014
ASHRAE releases new refrigerant standards
The 2013 editions of ASHRAE’s major refrigerants-related standards, incorporating 41 new addenda, have been published.
