Help with old building in Michigan
I’m looking for some advice on how to properly sheathe and insulate exterior walls on an old commercial building. The property is in Ludington, Michigan (Zone 6) and right now (from the inside out) there are 1” pine boards, actual 2”x4” studs on 16” centers, no insulation, and old cedar clapboard siding.
My plan is to remove the exterior siding and hang Huber ZipWall or perhaps InSoFast 2.5. Once the sheathing has been installed, I’m thinking about removing the interior pine boards, scabbing 2x2s on the inside of the old 2x4s, and filling the stud cavities (now 5 1/2” deep) with batt insulation, then hanging drywall.
I’ve read conflicting reports about whether the ZipWall will work in Zone 6, and frankly, I’m not that sure about any of this. I’ve read just enough Fine Homebuilding and Greenbuildingadvisor.com to be dangerous, but I’m not a pro builder. The local contractors are scratching their heads over this as well.
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