No vapour barrier between foundation wall and mudsill
After resolving the insulation issues around the concrete slab (https://www.greenbuildingadvisor.com/question/radiant-floor-heating-installation), I have another issue I need some advice on.
2. What are the long terms implications and what can I do to mitigate any future damage?
The building passed structural inspection from the city, so I’m not sure if he didn’t notice it, or it’s not a code requirement to have vapour barrier there.
I’ve attached a photo of the workshop to show that the rear foundation is 2 feet higher than the front.
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Replies
My guess is that the EPDM gasket will provide enough separation/isolation to keep the wood and cavity dry. I don't think it is needed, but you could inject some sealant to fill the gap caused by using a 4" wide gasket with 2x6s.
Do test your air sealing.