How to retrofit a metal skin pole building?
I am up in Seabeck/Silverdale WA State (4c zone) area and have inherited a pole
building work shop.
It was not used for a long time and mice had gotten into the insulation and destroyed it.
We plan on fixing up the building to use as a computer shop / art studio, so need to insulate it and put Sheetrock up and control the moisture in the finished area. I am trying my best to avoid taking the metal siding off (way beyond me) and have also ripped out as much of the white vinyl insulation/vapor barrier out as I can since the mice destroyed it. I don’t plan on using and air conditioner just heater.
Some back information: The shop is not vented however it does not have closure strips between the metal and the framing that allows for some air movement and also mice. I plan on blocking all of these off at ground level from the inside to stop the mice. it was built back around 1996 As a rough idea. Currently there is minor condensation problems during certain times of the year with just the standard vinyl backed insulation not horrible. The floors seems to sealed concrete that’s good and the area we are finishing has a wood stove.
I am currently cleaning the room that’s to be finished and blocking off mice entry ways.
My big question is: What are my options in WA ST climate (4c) to insulate / stop condensation in the
I have gotten a few different and conflicting ideas on how to do this:
1. Spray foam, however, its pretty spendy and I have heard it can make the metal buckle not sure though if thats unusual. Also was thinking of doing 2″ CC SPF then putting up insulation bats and sheet rocking but I don’t know if that would cause a moisture problem in the wall…. would I want to use poly as well?
2. Also had it suggested by an insulation guy to PACK FULL the walls with fiberglass un-faced bats, make sure its touching the metal and fit as much in as we can then poly and sheetrock.
3. Use fiberglass bats and make sure its not touching the metal so it can wick condensation and use poly.
I am also wondering how much of a vapor barrier the metal siding is I know it’s not air tight but it also doesn’t breath a bunch.
Really looking for some good information here on what to do next have heard and read so many ideas that I am not sure what will really work and still work 10 yrs down the road. THANKS
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