Meanwhile Darren O'Gorman of Target Zero says
the final airtightness result of 0.99 air changes per hour is impressive for such a complicated project.
The final airtightness test recorded a result of 0.77 ACH at 50 Pascals — well within the Enerphit threshold.
Not exact matches
Ultimately all of the forethought and planning proved its worth, and the house got 0.3 air changes per hour on its first
airtightness test, and 0.4 on its
final test.