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Discussion Starter #1
First post from me. This website is a wonderful resource! I have searched and read quite a bit and I have seen some really good advice on here about waterproofing and framing basements so I’m hoping someone could give their opinion on this.

Background. Purchased house two years ago and as part of closing we received $16k paid to a basement waterproofing company after this issue was discovered during inspection. The company installed a perimeter drain all the way around and also did something to the now buried exterior wall. We also added gutter extenders that take water 15 ft from the house.

Question: I want to finish the basement but I’m a little concerned about framing the walls in. Since the perimeter drain was installed there has been zero water on the floors and the cracks have not grown. My concern is trapping moisture that could create a mold problem??

My plan was to patch all of the cracks, install XPS board on the walls, frame after that “ridge”, rockwool in the frame, then drywall. (No Vapor Barrier) This would create a pretty large space between the framing and the wall due to that ridge.

Does anyone have any thoughts on what steps I need to take?





 

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Discussion Starter #3 (Edited)
I would cover the wall with poly sealed at the top. tucked in and sealed yo the dimple board at the bottom so any future leaking goes down and any evaporation from below has no entry to the finished area.
Thanks. This is something I haven't thought of. Maybe an 8 mil plastic sheet? I don't know how good the seal would be on the dimple board though. Should I skip the XPS board with this solution and what product would I use to seal at the top and bottom?
 

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retired framer
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Thanks. This is something I haven't thought of. Maybe an 8 mil plastic sheet? I don't know how good the seal would be on the dimple board though. Should I skip the XPS board with this solution and what product would I use to seal at the top and bottom?

In Canada we use this black crap that sticks to everything
https://www.homedepot.ca/product/lepage-pl-acousti-seal-vapour-barrier-sound-reduction-adhesive-825ml/1000409510



I have been told in the US Quad is what is used.
You might use red TUCK tape to seal to the dimple.

What ever you use for insulation you don't want to puncture the poly.
Do you understand the fire stopping required at the top of the wall?
 
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