How can you demonstrate the compliance with the mandatory provisions relative to air leakage of the envelope (both walls and fenestrations) of ASHRAE 90.1-2010 (par. 126.96.36.199.2, 188.8.131.52.3, 184.108.40.206) in Europe? Do you use European standards (e.g. EN 1026 and EN 12207)?
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