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Carpets, Lino & Flooring

Levelling compound over mixed concrete and timber floating floor

Anonymous user 23/02/2024 - 3.46 PM

Hi, We have just had an extension completed which has a suspended timber flooring. The existing part of the house adjoining is concrete. Our builder evened up the floors using a series of layers of levelling compound, insulation boards and then underfloor heating with more levelling compound (suitable for UF heating). One floor company has suggested the sub floor is not right and we will get cracking, the builder says there is no issue. Anyone have experience they could share? Thanks

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5 Answers

Anonymous user

Cracking is indeed likely. From what you've explained it sounds as though your builder did not properly calculate the final finished floor level of the extension. This could still have been rectified, but costly, by using timber to bring up new floor level to existing. Putting any concrete and/or latex compound over a timber floor, which will have a degree of bounce, even minimal, is likely to cause cracking. It is not the way to do it, I'm afraid.
Answered22 March 2022
6

Anonymous user

Leveling compound. Should be addtex for this type for job nothing else . But it is expensive _£40.00. per bag and bottle
Answered22 March 2022
2

A.c.brown Cambridge carpets and flooring

Rating: 5 out of 5
Cambridge
Yes you can put self levelling latex over timber floors, I've done it many times but it needs to be Ardex n/a or fibre reinforced
Answered22 March 2022
2

Paul Morrissey Flooring Solutions

Rating: 5 out of 5
Manchester
Any fibre bonded levelling compound can overcome this obstacle. Levelflex is just one product available to use. Can be applied 3mm to 50 mm
Answered10 October 2022
1

Anonymous user

There’s compounds on the market that could be use in this situation. An on site survey would be needed to do a full subfloor inspection
Answered28 March 2022
0