Reply by SamV

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Posted on Shop Setup in Outdoor Shed - Opinions Requested

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29 posts in 1023 days

#1 posted 01-14-2018 03:15 PM

Like I said, if you insulate, use a vapor barrier.

- RickM

I thought you stated that you have insulation, dont have a vapor barrier and you don’t have moisture issues. In rereading I saw you still recommended a VB, why is that if you have success without it? My shed is an inch or 2 off the ground up front and about 8” in the back.

- SamV

I could have probably used more words but basically
insulate = vapor barrier
no insulation = no need for vapor barrier
The vapor barrier is not for your tools, it s for the structure. It prevents condensation inside the walls where warm meets cold. Sometimes people complain that the drywall in their shop gets mold or mildew, that s probably because of condensation. Skipping the VB might be fine in a building that small, I don t know what your plans are for heating it. A space heater will work but if you run it all the time it will be expensive compared to a heat pump. And if you only run it when you need it, there is a risk of condensation when the air cools down again. Any gas heat will introduce a lot of moisture.

I suspect that my shop being all wood and uninsulated helps regulate the humidity inside as I have no rust problems but many other woodworkers in the area do. Or maybe it s because I m off the ground and moisture can t come through the earth into the shop. Or probably both. The downside is my shop is cold all the time and a heater is barely effective. So whatever tradeoffs come with insulation, I would take them.

- RickM

Ah ok, makes more sense now.

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