by Admin | Mar 2, 2023 | Community
Whole house fans (WHF) have been around for decades, but the 2022 California Energy Code now requires them to be tested in Climate Zones 8 through 14 (1). In 2022, VCA tested hundreds of these fans in newly constructed housing and encountered many issues with getting...
by Admin | Jan 20, 2023 | Community
The terms “blower door,” “envelope leakage” and “air sealing” all describe the most useful building durability performance tests an owner or builder can utilize. A HERS blower door field verification measures the total volume of air that is replaced in a space...
