draught-proofing floor

22 Nov 2005
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United Kingdom
Hi all,

I've got the original floorboards exposed, sanded and varnished in my house.

My problem is that in winter, the air from underneath/outside makes the floor blooming freezing and cold draughts come up through the gaps. I want to stop these draughts as my wife, witht he assistance of radiators and fireplace, is determind to keep the temperature up around 20 degrees:cool:

I have been told by one buiilder that there is a product on the market that is an insulator. Apparently it comes rolled up (he likend it to cling-flim)and as you un-roll it it expands to about an inch thick.

He then said you go under the floorboards (we have just over a metre gap under the floors) and staple it to the bottom of the skirting boards and the joists, spreading it across the underneath of the floor boards.

Firstly - does anyone know the product he is talking about?
Secondly - can anyone envisage any problems with doing this?

Thanks for any help! :D
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