Tag Archives: flapper vents

February 24, 2015

Why cheap but noisy flapper vents will cost you more

Great strides have been made in recent years in improving the energy efficiency of homes and buildings, but at a cost. Insulation has increased in walls and attics and has been added to crawlspaces. New fenestration standards, which minimize air leakage around windows and doors, have been introduced, although prices have increased due to manufacturing […]

HVAC, Technology Focus