Dry/Non screed install of wet UFH on suspended timber floor

[Norbert]

My new build will have an insulated suspended timber floor on block walls (to get above flood level). Floor will be I beams or metal web, 300mm plus insulation with decking on top, fitted by TF manufacturer

My natural inclination is to minimise wet trades within the TF, so looking at dry UFH installations. These consist of pre routed pipe runs. Several manufacturers do these for instance : OMNI, Cellecta and Timolean, there are probably others.

Bespoke dry panel heating cooling construction products for OEM. (timoleon.co.uk)

https://www.cellecta.co.uk/product/mojave-s1-3/ and https://www.cellecta.co.uk/product/xflo-ff-2/

Omni https://omnie.co.uk/torfloor2/ 

 https://omnie.co.uk/foilboard-suspended/

Does anyone have any experience of these products?

Or am I on the wrong track here, should I just go for a screed on top of the decking? Any views welcome.

 

[ProDave]

I used dry screed often called pug mix.  On top of joists lay OSB or ply, 25mm battens following joists, lay UFH pipes then dry screed, final floor (engineered Oak) on top.  Very easy to DIY.  Don't forget to include extra dead load when calculating joist sizes.

 

[bassanclan]

I used aluminium spreader plates.

They seem to do the job nicely

[nod]

6 hours ago, ProDave said:

I used dry screed often called pug mix.  On top of joists lay OSB or ply, 25mm battens following joists, lay UFH pipes then dry screed, final floor (engineered Oak) on top.  Very easy to DIY.  Don't forget to include extra dead load when calculating joist sizes.

 

Pug mix 

There’s me thinking it was a NW England term 😁