Cigarette smoke smell coming up through floorboards

1

1930sreno1

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Hi All,

Can't afford to take off the original floorboards and then fill the gaps underneath so looking for cheaper options to stop smoke smoke coming through from next door (isolated to one bedroom upstairs) no where else in the house.

We share a wall (1930s semi detached) It's definitely through the floorboards (this is upstairs room) Initially I caulked under the skirting boards as it was really bad there around the chimney breast so now it's making its way up through the floorboards.

Can someone recommend a caulk/silicone sealant to fill in between all of the gaps to stop smoke coming through that is suitable for floorboards? They are 1930s originals. Have carpets on top but the carpets just absorb it even more and now it stinks!!!

Thanks
 
Last edited:
It's a 1930s house. I think the smoke is coming through the joists through the chimney or something. It's upstairs and I own the house
 
Sorry I should have made it clear - we share a wall (semi detached house)
 
1930sreno1 said:
Sorry I should have made it clear - we share a wall (semi detached housec
Click to expand...
Cigarette smoke cannot penetrate a ceiling , I would guess with the hot weather you have windows open and natural air flow will carry the smoke up into your level.
 
That's exactly it. Just need to use a caulk or sealant and just seal the gaps in the floorboards but not sure which one to buy! I'm hoping this will fix it
 
I daresay there's thousands if not millions of houses with dodgy brickwork/mortar forming the party wall at the floor junction where there's no plaster, which I'd guess this is caused by, ordniarily if you didn't have a smoker next door the problem would never be obvious.
 
Cigarette smoke goes through a brick wall easily.
Experienced this in my previous and current house.
No way to stop it.
I sealed the party wall to the finest gap when I replaced the staircase and replastered the stairwell.
Better, but still noticeable in the morning.
My friend was in the same situation but with curry smell.
He moved to Dorset in a detached house.
 
If it is the joist ends penetrating the party wall, you only need to take up a couple of boards running along the wall.

Clean it up well, with a brush and vacuum, moisten with a water spray, and use a nozzle to inject expanding foam (I use the pink fire resisting grade) round the joist ends. A foam gun will make it easier.

Before screwing the boards back, pack the space tightly with mineral wool loft insulation, which also reduces draughts
 
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