Guidance for Insulating Slanted Ceilings - Cathedral Ceilings
Baffles are ok. I have done some.
I like the method of nailing 1x2's to the top of the rafters and then nailing 1/4" whatever to them to make a backstop to spray to. I bet (I havent tried tis yet) polystyrene board would work well for this purpose, too. Then spray to that.
Smile on face
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