Ask The Trades - Print Page

Ask The Trades
https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Building Questions >> Screed on timber floor https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1453286096 Message started by BobS54 on Jan 20^th, 2016, 10:34am

Title: Screed on timber floor
Post by BobS54 on Jan 20^th, 2016, 10:34am

Hi

Has anyone experience of putting a floating screed on a timber floor? Im looking to install underfloor heating on a timber floor, and want to raise the level and have the thermal mass of the screed to hold the heat.

I have timbers175x50 @400 ctrs, and propose 70mm insulation between them, and a separating mmembrane before 75mm screed and tile or wood flooring.

How do you verify the victorian timbers can take the load and wont deflect and crack the screed?

Thanks

Bob

Title: Re: Screed on timber floor
Post by thescruff on Jan 20^th, 2016, 4:43pm

Roth do several much better alternatives

Title: Re: Screed on timber floor
Post by CWatters on Jan 21^st, 2016, 11:33pm

+1

I would avoid screed for this.

We have a mixture of screed and foiled insulation (aka heat spreader plates) in our house. Both work equally well although the screed takes longer to heat up - perhaps a disadvantage if you are both out at work most days.

Title: Re: Screed on timber floor
Post by jonnyN on Feb 15^th, 2016, 12:13pm

I would be careful to do this. I personally wouldn't as it will simply crack after a while.