Achieving air tightness with interior polyethylene
A lot of guidance available regarding air tightness focuses on exterior air barriers. Here in marine 4, in western Canada, I am planning to use a polyethylene sheet system for my air barrier.
Our code/my energy advisor requires I achieve 3 ACH @50pa. Can anyone point me to some details and resources to help me achieving this in a self build?
im wondering if I should be concerned about air leakage beyond the poly or simply just focus on one contiguous poly envelope?
for example, should I also tape my sheathing, seal at the foundation and try an make this air tight?
GBA Detail Library
A collection of one thousand construction details organized by climate and house part