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I’m putting up a small addition in Mass. I’ve heard that blown cellulose is cheaper and thermally fighter than batts, so I want to blow cellulose in the walls and roof. There is no basement; the floor is three feet above grade. I plan to install radiant heat tubing between the joists,cover with plywood and thin-set ceramic tile over (tile manufacturer says that ceramic tile disperses heat better than quarry tile). I was thinking of hanging Masonite below the joists, in the crawl space, and blowing in cellulose there, and laying a vapor barrier over the insulation.
Is this a foolish idea? Would it be even more foolish to put batts under the floor and cellulose everywhere else–it is a small job, after all, and I don’t want to make more trouble for the (as yet unchosen) builder. Thanks!
Replies
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I'm putting up a small addition in Mass. I've heard that blown cellulose is cheaper and thermally fighter than batts, so I want to blow cellulose in the walls and roof. There is no basement; the floor is three feet above grade. I plan to install radiant heat tubing between the joists,cover with plywood and thin-set ceramic tile over (tile manufacturer says that ceramic tile disperses heat better than quarry tile). I was thinking of hanging Masonite below the joists, in the crawl space, and blowing in cellulose there, and laying a vapor barrier over the insulation.
Is this a foolish idea? Would it be even more foolish to put batts under the floor and cellulose everywhere else--it is a small job, after all, and I don't want to make more trouble for the (as yet unchosen) builder. Thanks!