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
| Apr 5, 2013
New items to ASHRAE/IES energy standard open for public comment
The 2013 version of the ANSI/ASHRAE/IES Standard 90.1-2010, Energy Standard for Buildings Except Low-Rise Residential Buildings, is scheduled for publication later this year, and 26 proposed addenda are open for public comment.
| Apr 5, 2013
No evidence that mandatory building energy labeling improves efficiency, study says
The Building Owners and Managers Association (BOMA) International and the Greater Boston Real Estate Board (GBREB) released a report, “An Economic Perspective on Building Labeling Policies,” that questions the efficacy of mandatory building energy labeling.
| Mar 27, 2013
Practical application of Legionella prevention standards the focus of ASHRAE project
An American Society of Heating, Refrigerating and Air-Conditioning Engineers committee drafting tough new standards to prevent the waterborne bacteria Legionella is focused on how to apply the standards in the real world.
| Mar 27, 2013
Open discussion of regulations on tap at AGC’s 2013 Federal Contractors Conference
The AGC Federal Contractors Conference provides a venue for contractors and federal agency personnel to meet in a collaborative forum to review federal construction contracting issues from around the United States.
| Mar 27, 2013
New BACnet standard offers significant improvements to alarm handling
Changes to the newly published BACnet standard from ASHRAE will encourage smart building automation controls systems including alarms.
| Mar 27, 2013
CEIR releases tool that measures energy, environmental benefits of roof systems
The Center for Environmental Innovation in Roofing (CEIR) released its new RoofPoint Energy and Carbon Calculator that is designed to help roofing professionals measure the energy and environmental benefits of modern roof system technologies.
| Mar 27, 2013
Sustainable wood controversy leads to LEED ‘backlash bill’ in Florida House
A Florida House bill that says state agencies should decide on a project-by-project basis which green certification standards are used on state construction passed a subcommittee vote 12-1.
| Mar 19, 2013
Colorado Zero Energy District project shows how businesses can reach zero-energy standard
An ambitious experiment in Fort Collins, Colo., is supporting development of the nation’s first major urban zero-energy district.
| Mar 19, 2013
New LEED for Neighborhood Development and Historic Preservation guide released
A new guidance manual, LEED for Neighborhood Development and Historic Preservation, outlines strategies geared towards helping building teams incorporate historic resources into their developments.
| Mar 19, 2013
Senate bill would reform EPA’s lead renovation, repair, and painting rules
A bill to reform the EPA’s Lead Renovation, Repair, and Painting Rule (LRRP) was recently introduced in the U.S. Senate.
