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2006-10-11 12:41:19 · 4 answers · asked by clueless53 1 in Home & Garden Do It Yourself (DIY)

I might need to explain my situation a little better. the house is on wood post piers and the bottom of the floor ranges from about 18" to 36"'s off of the ground. I need to know if I can use faced or unfaced fiberglass insulation and if I use faced should it go up against the floor decking?
I am using a special netting that is made specifically to hold the insulation in place between the joist.

2006-10-11 13:13:34 · update #1

4 answers

seal all and every joint with glue or caulk, to stop air infiltration. then insulate the cavity with the highest r-value insulation that you can use. after that use a plyboard and seal the edges after nailing it in place. than use house wrap, finally install what ever exterior type of material that you want, cedar, vinyl sidng, ect...

2006-10-11 12:50:54 · answer #1 · answered by mr.dj 3 · 0 0

go with faced.....it has a moisture barrier effect.....just remember that the paper always faces the living area.....and do not let the insulation go up to the flooring, u want an air space of a min of 1" between the insulation and the bottom of the flooring.....

so if ur joist r 9 1/4" deep ur insulation needs to be no more than 8" thick........

lic. gen. contractor

2006-10-11 21:35:23 · answer #2 · answered by bigg_dogg44 6 · 0 0

We have a summer home in Wilmington, NC. On the inter-coastal. I tried several types of insulation and by far the best is the expanding foam insulation. You never have to worry about it getting damp and it seals as tight as a drum.

2006-10-11 19:55:43 · answer #3 · answered by surecashtrades 1 · 1 0

What they forgot to mention is you can buy the foam in large containers. Also there are companies that spray a similar type of insulation instead of fiberglass batts. How will you keep mice, rats and bats (well, maybe not bats) from building nests in the batts, or carrying it off to there nests

2006-10-11 21:09:40 · answer #4 · answered by T C 6 · 1 0

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