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How to insulate a barn?

I have a barn that I want to create an insulated workshop in half. This will mean insulating 2 exterior walls. It is modern 2x4 construction on a concrete slab. It does not have a moisture barrier on the panel siding, so it gets some light seepage at seams. How show I handle insulated these section so I don't create a water problem. There are a few pieces of fiberglass insulation that you can see have trapped water and grown mold. I was thinking about nailing strapping to the broad faces of the studs and fitting rigid foam so that there is a breathing space behind. Any other ideas?

2 Answers

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  • ?
    Lv 7
    5 years ago

    You will have to make the exterior water tight or you will just compound the problems. So, put on an exterior that is water proof.

  • Anonymous
    5 years ago

    you will need to stop the water infiltration from the outside, this isn’t good for the wood framing let alone the insulation

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