I have just built a new shop which is the pole barn type. It has rafters
running on 8 ft centers . I want to use the blow in type of insulation and
was wondering how heavy it would be at 10 in. deep ?
I am also looking into options as to what to cover the ceiling with . Would
heavy duty plastic sheeting hold up the insulation ?
What have you used ?
I'd run some stringers across the 8' opening and then put up 3/8" drywall.
Plastic of any sort will sag and the insulation will ten to come towards the
center. And if it breaks, well, please post pictures.
8 ft centers? You will need to run a minimum of a 2x4, but probably a 2x6
across the lower run of the rafter, them hang sheetrock to that. Blow in
insulation above that.
Best check with the people that built it, or if you built it yourself, check
with the lumber yard where you bought the lumber from for ideas. It is
possible the lower run of the rafters were not made to hold the weight of a
ceiling, then you rally have some work on your hands!
Plastic will not hold anything at all, you would be lucky if the plastic
stays up all by its self!
I went through this myself a few years ago with some temporary space I was
renting. I tried the plastic route, but ended up with 2x4's and sheetrock.
<< I have just built a new shop which is the pole barn type. It has rafters
running on 8 ft centers . I want to use the blow in type of insulation >>
Your building supplier will have a form of rigid insulation that will work.
Morton buildings have a foil coated rigid material that they apply after the
roof panels are on, and post applied to side panel types as well. Others are
probably similar. It makes sense to use a light weight self adhesive panel for
efficiency and minimal labor and avoid having to spend time and money on
unecessary framing just for insulation. HTH
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