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
| Aug 16, 2012
New York’s Barclays Center project accused of ignoring noise, pollution regulations
Construction crews racing to finish the Brooklyn Barclays Center are ignoring strict regulations to reduce noise and pollution, a new report by critics has found.
| Aug 16, 2012
Harness saves life of worker cleaning Washington state Capitol
Fall-protection equipment helped save the life of a worker who was cleaning the Washington state Capitol building in Olympia, after the platform he was using gave way.
| Aug 16, 2012
CSI webinar on August 21 focuses on electronic energy control
The Construction Specifications Institute (CSI) is sponsoring a free webinar on August 21 at 2:00 p.m. (EDT) on electronic energy control.
| Aug 16, 2012
Public sector pushes sustainable building forward
Not usually noted for its innovation, the public sector has done the most to advance sustainable building, according to a recent panel of green building professionals.
| Aug 16, 2012
Canada’s first net-positive building under construction in Milton, Ontario
The GreenLife Business Centre in Milton, Ontario near Toronto is set to become the first net-positive energy building in Canada.
| Aug 9, 2012
St. Paul cannot adopt overly restrictive egress windows policy, court rules
The Minnesota state Court of Appeals rejected St. Paul's attempt to adopt a policy on egress windows that was stricter than state law.
| Aug 9, 2012
Fire chief questions building code after St. Louis apartment building fire
A blaze that destroyed a 197-unit apartment building in St. Louis, Mo., displacing 250 residents, led the city’s fire chief to question the materials used in the construction of the four-story building.
| Aug 9, 2012
Ramps have strict criteria for ADA compliance
It is important for businesses to understand that an existing ramp at a building entrance may not mean that barrier removal obligations under the Americans with Disabilities Act have been met.
| Aug 9, 2012
ClickSafety, AGC provide online training program for construction professionals
Construction professionals will be able to take a wide range of mandatory and optional safety training programs online through a new collaboration between the Associated General Contractors of America and ClickSafety.
| Aug 9, 2012
Tornado-ravaged Greensburg, Kansas’s new green buildings save $200K a year
The town of Greensburg, Kan., virtually destroyed by a tornado in 2007, decided to rebuild 13 public buildings according to green standards.
