Solid wood flooring on concrete?

zachris · 2008-01-15T12:52:32+00:00

I want to lay a wooden floor in a small space (2.1 x 1.6 m) where the substrate consists of a reasonably newly cast concrete slab (4 months indoors). The concrete slab serves as a landing in a staircase and has not been equipped with underfloor heating; however, the space under the landing is heated. The wooden floor is made of tongue-and-groove solid "planks" in elm. The recommendation I received is to put joists on the concrete floor and screw the planks into the joists at a 45-degree angle through the tongue. My problem is that I want to minimize the "height" of the floor, and since the planks themselves are already 14 mm, it would be way too high if, say, a 20 mm joist was placed underneath. Ideally, I would just glue the wooden floor to the concrete, but then you might have problems with moisture and risk the wood warping, or is there some smart glue or other product that can be used? Someone I asked mentioned something about "technical silicone"... So, is there a smart way to minimize the "construction height" while avoiding the moisture problems caused by the concrete?

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Bror

#16

Member

· 750 posts

21 Jan 2008 at 8:36 AM

Bror

Member

750 posts

21 Jan 2008 at 8:36 AM

Really nice, but be careful with small children on such an open staircase.

Solid wood flooring on concrete?

Bror

Bror

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