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Gaps in floorboards under bath

Posted: Thu Sep 15, 2022 7:28 am
by leica
Hi All

I hope this is the right place for this question. I have a tiled bathroom but whoever did the bathroom didn't tile under the bath and there are floorboards with gaps. The chap who lived under us was taken into care and the flat is empty with the windows slightly open. So in winter there is a lot of cold draughty air under the bath. There is a similar situation in the kitchen with the floor behind washing machine, under the sink etc.

I'm going to have a new kitchen done next year, not sure about the bathroom - I might have new tiles put in since they're black and I'm not partial to black tiles.

Is there insulation I can put under the bath? Last year I just put in old duvets since those areas are not visible. I was going to replace the duvets since there'll likely be mould.

Those areas aren't easy to get to without removing the bath. Kitchen would be easier I suppose - maybe some sealant for the gaps? That would deal with draught but something more insulating might be preferable to keep bills down in winter?

Thank you.

Re: Gaps in floorboards under bath

Posted: Sun Sep 18, 2022 9:46 pm
by stoneyboy
Hi leica,
Working under a bath is really difficult so suggest you close any large gaps (where pipes go through the floor) using duct tape. Then pour micafil over the whole area, this can be raked into place and made as deep as you want.
Regards S

Re: Gaps in floorboards under bath

Posted: Tue Nov 08, 2022 2:32 pm
by EwanAndrewS
I filled mine with expanding foam.