Suspended timber floor. Foam Vs HB/NMP/A-Panel

Discuss Suspended timber floor. Foam Vs HB/NMP/A-Panel in the Tiling Forum area at TilersForums.co.uk

W

Waluigi

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Standard suspended timber floor, regarding overboarding- do people consider the foam boards (wedi/Marmox/Jack0/Ducka etc) as good as the boards like Hardiebacker/NMP/Aquapanel etc.

I’m asking this in relation to UFH and suspended timber ground floors where the insulating properties of the foam boards exceed those of the other boards.

I’m assuming the 12mm foam boards aren’t a whole world different to the 6mm Hardiebacker boards.
 

jcrtiling

Trusted Advisor
Professional Tiler
TTA Member
I 've asked harry hill about this and he says the only way to find out is fight !
But seriously as far as insulation is concerned foam boards will beat cement boards every time
 
OP
W

Waluigi

Unregistered (Please Register)
My mistake, yes absolutely it’s Leccy UFH.

One thing I was wondering, I tend to use 12mm HB when laying natural stone. I’m wondering if 12mm foam board is good enough. I’m not entirely sure it is.
 

jcrtiling

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Should be ok but I have seen some people recomend using ditra on top of elec ufh as well as using foamboard underneath .
 

pdc

Only a Handyman...
Trusted Advisor
Professional Tiler
Obviously foam board wouldn't add any structural rigidity to a timber floor in the same way a cement board does.
 

Localtiler

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JOTM Winner
there’s no structural gains from a cement board, pdc, despite the feeling of solidness after it’s fitted.
 

pdc

Only a Handyman...
Trusted Advisor
Professional Tiler
That surprises me Andy. I'd still rather use cement board on timber than a foam board, not that I've ever seen a timber floor over here!
 
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W

Waluigi

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Why are we still using Hardiebacker and the like instead of Foam boards on floors?!
 

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