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zoinkability t1_is34e1l wrote

Reply to comment by madcaesar in diy blown in insulation question for first timer. 100+ year old home. by jjax2003

Every stud, ideally. Any area between two rafters without a baffle is a spot where the insulation can trap warm air and moisture against the underside of the roof decking. If your insulation isn’t deep enough to touch the underside of the decking it’s not as much of a concern.

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