UFH - engineered wood floor - efficiency / insulation query

[ollie]

Hi self build been living on subfloor screed for a few years - finally got the cash to get a proper floor put down.

Open plan kitchen living area - want to lay engineered oak floor but could do with some advice re under floor heating efficiency.

I've had two quotes both stated that floor should be glued down , but one guy said he would lay acoustic mat underneath to ensure that there would be no bounce on the joints - when he showed me the matting its basically foam which to me sounds like another layer of insulation that I would imagine I really don't want re thermal efficiency... 

Could anyone give me some bullet points (or point me to an existing thread) regarding what to do and not do re efficient engineered wood flooring with respect to ufh 

many thanks! 
Ollie 

[Nickfromwales]

@ollie

Erm, 'bouncy guy' must think that screed is flexible then?!? Don't be ringing him back.....  

 

Bond the flooring down, and confirm with the supplier / manufacturer of the max floor surface temps that the product and the adhesive can cope with (most say <27⁰C). Ask the installer to allow for enough adhesive to fully bed / bond the floor down, and offer to pay for the extra adhesive if so necessary (as some will skimp and use as little as possible, which you don't want for UFH to work best).

[saveasteading]

  On 04/04/2025 at 09:27, Nickfromwales said:

Don't be ringing him back..

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He either doesn't know a little about floors....his mastermind subject.

Or that membrane makes it easier for him, taking out any blips in the screed.

  On 04/04/2025 at 09:27, Nickfromwales said:

enough adhesive to fully bed / bond the floor down

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I like that.