Not exact matches
This
allows for much more precise flow calibration and reduces the chances of
air leakage.
Specially constructed airtight ply boxes were installed to receive the new windows, and also
allow for preliminary airtightness testing to more accurately reveal
air leakages elsewhere in the house
Careful attention is paid to the vapour barrier to ensure that the
air leakage rate remains below.6
air changes per hour (ACH), the maximum
allowed with the PassivHouse framework.
These homes feature open - cell spray foam insulation that reduces
air leakage and
allows for smaller - sized HVAC units.