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Old 28-02-2012, 16:34   #14
martyh
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Re: Expanding Foam as Insulation

Quote:
Originally Posted by Barewolf View Post
We plan on using the workshop during winter months, the reason i'm insulating. Do you think an overlay of MDF would keep the floor warm enough?

I dont really have a problem with putting a false floor down. I was thinking of doing this originally by laying 50mm poly sheeting, or at least using 30mm, and using plywood as the floor base. MDF would be cheaper I think.

Would using ONLY MDF be enough?
Your biggest problem is draughts so going all out with thermal insulation on the floor will be a waste of money unless you are going to do the roof and walls(or already have done) .Very little heat if any will escape through the floor you are more likely to get cold draughts blowing up through the floor.My advice would be to eliminate the draughts rather than insulate and a ply/mdf floor covering can be very effective .You can buy T&G chipboard flooring with foam insulation already attached
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