replying to Tom The Great, DIYDon wrote:
Cover it with Tyvek or similar highly permeable air infiltration barrier.
Its pretty darn cheap and if stapled and taped, you may also get some heat
transfer reduction by reducing convection losses. (Theres highly regarded
data from a Canadian government lab showing that at very low temperatures,
fiberglass is porous enough to enable convection current to develop within the
insulation, drastically reducing effectivess. ........Probably more critical
of you live in Alberta😀.

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