Question on moisture barrier

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Gstaniforth
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Question on moisture barrier

Post by Gstaniforth » Sat Sep 28, 2019 6:04 pm

Hi all im new here to the forum and may be postingnin the wrong spot. Please forgive me if i am. I live in winnipeg and own a bilevel home that i am hoping to insulate the basement of. Have watched your videos on moiture barrier and such on the bilevel you did and saw you used poly... if i wanted to use foam on the bilevel would this be an option for the concrete portion of the basement? I will be framing a full height wall infront and adding r value as you did in you video on the bilevel insulation. Not sure how i would properly transition to the above grade framing using the non flexible rigid foam insulation.... thoughts? Should i just use poly method? Thanks!

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Shannon
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Re: Question on moisture barrier

Post by Shannon » Sun Sep 29, 2019 8:23 am

Yes foam is fine and personally I would just use it against the concrete and ontop of the concrete ledge. Above that you don't need a moisture barrier and can just fill the cavity with bat insulation.You will still need a poly air/vapour barrier before the drywall is installed.
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Gstaniforth
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Joined: Sat Sep 28, 2019 5:57 pm

Re: Question on moisture barrier

Post by Gstaniforth » Sun Sep 29, 2019 9:16 am

Another question.. my home was remediated for mould growth leaving no insulation ir vapour barier left. I was told i should prime with delux gripper the wall cavities prior to insulating... would this cause an issue? Not letting the house breathe? Exterior ia buffalo board with stucco and wood siding.

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Shannon
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Re: Question on moisture barrier

Post by Shannon » Sun Sep 29, 2019 11:47 am

You should be fine with the primer.
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Gstaniforth
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Re: Question on moisture barrier

Post by Gstaniforth » Sun Sep 29, 2019 1:33 pm

I just wanted to make sure that it doesnt act as a second vapor barrier or restriction... the primer should still allow any moisture within the wall cavity to dry out? Sounds ok to you?

Just never had this type of a situation before or ever had the interior of a wall cavity on an exterier wall primed before.

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Shannon
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Re: Question on moisture barrier

Post by Shannon » Mon Sep 30, 2019 8:38 am

Yes you will be fine with one coat of wall primer.
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