The latest version of ASHRAE 189.1 will expand duct testing requirements to include low pressure ducts as well as high pressure ducts.
The latest updates to ASHRAE 189.1 have been finalized and incorporated into the standard. They will be published after undergoing a final accuracy review before publication.
A key update to the standard is the broadening of duct leakage testing to include ducts operating at 3-inch WG (water gauge). Currently, the current requirement for leakage testing applies to ducts operation at ≥4-inch WG.
“The industry has resisted testing because of the additional cost involved,” said Bob Reid, former chairman of ASHRAE Technical Committee 5.2 and chief engineer at SPOT (Spiral Pipe of Texas). “But in reality, building owners can either make a relatively small payment upfront to ensure their ducts are operating properly, or they can continue to pay higher operating costs throughout the life of the building.”
There are new duct sealing methods that provide a demolition-free way to meet the tightened duct-sealing specifications. For instance, an aerosol-based duct-sealing technology seals leaks from inside the ductwork.
Related Stories
Resiliency | Jun 1, 2016
Federal agencies boost standards for more resilient construction
HUD, FEMA, GSA, Army Corps of Engineers make policy changes.
Green | May 31, 2016
Miami Beach requires developers to meet green standards or pay a fee
Applies to structures larger than 7,000 sf.
Codes and Standards | May 27, 2016
Better enforcement needed for successful implementation of energy efficiency policies
Commercial buildings the focus of recent code initiatives.
Codes and Standards | May 25, 2016
LEED Dynamic is worth the effort, says commercial real estate executive
San Diego office tower is California’s first office building to receive LEED Dynamic plaque in recertification.
Codes and Standards | May 24, 2016
Ontario planning to spend $7 billion on wide-ranging climate change plan
Includes financial incentives to retrofit buildings.
Codes and Standards | May 23, 2016
Facility managers say Internet of Things, analytics will impact maintenance soon
More reliable data needed for optimal results from the technology.
Codes and Standards | May 20, 2016
Industry leaders call for wider use of bamboo as a building material
Benefits include seismic resiliency and sustainability.
Codes and Standards | May 19, 2016
Asphalt roofing group publishes updated shingle installation guide
Technical manual provides best practices for roofing professionals.
Codes and Standards | May 16, 2016
EPA proposes new stormwater discharge regulations for construction sites
Would apply to sites of one or more acres.
Roofing | May 16, 2016
New guide focused on increasing energy and structural performance with raised-heel trusses
Higher trusses simplify attic ventilation, leave more space for insulation.