Seal between panel material and floor?

[ah2]

Hi, I've taken down old Masonite boards against an exterior wall to redo some electrical work, the old boards went down a couple of centimeters into the joists and the OSB/gypsum ended up a bit above due to the ceiling height. There were some holes in the vapor barrier around the old VP pipes and such, and it smells a bit like "old insulation" around the floor. Is there something good you can use to seal it to prevent the smell from entering the room? Foam sealant? A gap of 10-15mm.

 

[grovspacklarn]

Isn't a skirting board enough there?

 

[Thomas_Blekinge]

No, I don't think a skirting board will suffice. I have sealed similar gaps with acrylic sealant, luckily I had an electric caulking gun. The result was very good, no drafts or smell through the gap.

 

[ah2]

Will be a lot of gaps, thought that expanding foam would fill better. But I am inexperienced with how expanding foam behaves.

 

[pontuskarlsson]

Will be a lot of caulk, thought that foam sealant would fill better. But inexperienced with how foam sealant behaves.

Foam sealant is no problem to get that "windproof" if that's what you're after.
I would personally recommend "illbruck fm310".
It is a low-expanding foam that has better movement properties than traditional construction foam.

 

[Matti_75]

If you're not used to it, I would advise against expanding foam. It will swell and is hopelessly difficult to remove from your finished surfaces.
As someone wrote, mjukfog is the best.

 

[ah2]

Feeding with soft joint then 👍

 

[tergo]

test with a backing rod that you press in, if you have 15mm try with a 20-25mm
you probably won't need to soft seal then

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