Smoke smell from flat below - ok to put airtight membrane under carpet?

[Donsboig]

Hello,

I am in a converted Victorian house and when my downstairs neighbour smokes I get smoke smell coming up through the floor. I'm planning to put new carpets down and wondering if it is ok to put some sort of plastic sheeting down across the whole floor (and tuck it under skirting boards) before adding underlay and carpet?

I'm particularly wondering if it could cause damp issues? I'm hoping it would be ok because:

- I'm on the first floor, so under my floor is the neighbour's ceiling.
- I've been into the void under the floorboards and it's all dry as a bone.

But I'm aware damp stuff can be a bit counterintuitive.

Any thoughts welcome, thank you.

 

[Ivor Windybottom]

Sounds fine to me. Not ideal but totally understand why you'd want to do it. I'd shove the edge under the skirting, slice off any surplus and run a bead of silicone round the perimeter. Also ensure the top of the skirting is caulked to the wall before painting.

 

[Ivor Windybottom]

Fire/smoke risk?

 

[Ivor Windybottom]

Alternatively you could seal between the floor boards with silicone and against the skirting.

 

[foxhole]

How do you know it’s coming thru the floor? Highly unlikely .