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rockies
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# Posted: 24 Jun 2017 06:24pm
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If you're installing outlets in an exterior wall you should make sure warm air and moisture doesn't leak through into the stud cavity.
https://www.homedepot.ca/en/home/p.one-gang-airtight-plastic-device-box.1000404476.ht ml
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Jabberwocky
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# Posted: 26 Jun 2017 10:20am
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This is where I bought mine. They didn't communicate any shipping info, but I had them in 4 days and they are cheap.
http://www.betterenergystore.com/subsubcategory.asp?ssc=4
These are better than the ones that already have the foam gasket if you are installing a vapor retarder because you can tape the vapor retarder to the wide flange.
The ones with the foam gaskets are good for use with sheetrock I suppose, but personally I'd be dubious about getting a perfect seal.
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Asher
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# Posted: 27 Jun 2017 01:46pm
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I just wrapped all of mine in heavy plastic. That might seal the box very nicely, but how are you going to get the wire through without "breaking the seal"? I just cut oversize squares of plastic wrapped them around the boxes and nailed them in, then poked the wire through the plastic and put a small beam of silicon around the hole. On the inside I taped them to the plastic sheeting, on the outside a small bead of caulk and a foam backed plate.
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