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
| May 8, 2014
LED lighting helps cities receive Energy Star designation
Thanks largely to an ambitious program to boost the use of LED lighting in its buildings, Los Angeles is the top ranked U.S. city on the Environmental Protection Agency’s annual list of U.S. cities that are doing the most to improve energy efficiency.
| May 8, 2014
Door knob code revisions generating controversy
The City of Vancouver’s ban on doorknobs in all new buildings, which went into effect last month, has drawn a strong reaction from the public and heated debate across Canada as other jurisdictions consider the measure.
| May 8, 2014
Structural concrete code revisions open for public comments
The American Concrete Institute’s completely reorganized ACI 318-14, “Building Code Requirements for Structural Concrete and Commentary,” is open for public review for a 45-day period.
| May 3, 2014
Controversy rages over cost, benefits of proposed OSHA silica dust rule
Introduced in August 2013, the proposal would lower allowable levels of crystalline silica in all workplaces, standardize how the dust is calculated, and require medical monitoring for employees exposed to high levels.
| May 3, 2014
California’s Title 24 promises to reshape the construction industry
California’s recent revisions to Title 24 contain ambitious performance goals: all residential buildings must be Zero Net Energy by 2020 and commercial buildings must reach that standard by 2030.
| Apr 30, 2014
House Appropriations Committee approves $3 billion cut for military construction
The Army would see the sharpest cuts on a percentage basis, with a $578 million, or 52% reduction in FY 2015.
| Apr 30, 2014
GSA wants to trade D.C. office building for construction and development services
The GSA has issued an RFQ seeking developers who can provide construction and development services in exchange for the GSA Regional Office Building and Cotton Annex located in Southwest Washington, D.C.
| Apr 30, 2014
Mexico City spending big on green roofs to fight air pollution
Although green roofs have been widely adopted in urban areas to reduce the heat island effect and stormwater runoff, Mexico City is hoping that vegetative rooftops can also reduce the city’s air pollution.
| Apr 23, 2014
California bill would make employers responsible for subcontractors' wages, workers' comp
Under the recently revised Assembly Bill 1897, employers would have to pay wages, taxes, and workers compensation on behalf of a subcontractor’s workers if the subcontractor reneges on that responsibility.
| Apr 23, 2014
Obama’s 2015 budget includes $1.7 billion to GSA for building construction, renovations
The Obama Administration has proposed $1.7 billion for construction, renovation, and repairs to federal buildings in fiscal year 2015 under the auspices of the U.S. General Services Administration.
