On September 6, 2016 at 12:33, SammPX said...
I believe they refer to it as "build it tight and ventilate it right"
I'm seeing spray foam a lot more here in the bay area. It can be 100 degrees outside but the attic is I'm guessing mid 80s.
That is exactly what they say, and as important as building it tight it, the ventilation is crucial. Getting fresh air in, allowing off gassing constructions materials out, etc.
From what I have seen, even in 100+ temps here in Texas, the semi-conditioned spaces rarely have more than a 10* delta from the conditioned spaces.
