Started by ccgibson, October 04, 2023, 07:45:22 PM
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Quote from: DanielW on October 04, 2023, 09:35:46 PMVapour barrier sounds like the right thing for the application: You should :theoretically' have it anyway for an interior underlayment (as long as the interior siding is dry) , and you can get vapour barrier/poly in black. It's very frequently used to peg over people's lawns when they want to block sunlight to kill all the grass. That'd be my choice, and probably the cheapest. Just to be clear: this is just so the cracks between boards show black? If not worried about vapour, maybe just a layer of tyvek/typar on backwards with the black side out?
Quote from: doc henderson on October 26, 2023, 04:48:35 AMso does the FSK go on the exterior or interior side of the insulation? Is it a vapor barrier or does it breathe? vinyl sheets sound like a vapor barrier. you do not want vapor barrier on both sides of the insulation and just on the interior side. sounds like it goes on the "outside" and over the osb and under the siding. house wrap would breathe and let moisture get out of the insulated space.
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