Depth Of Slc Over Heat Mat System - TilersForums.com

[MTiler]

Hi

Im going to be laying a UFH mat by Heat Mat, in their instructions it says to have at least 8mm of SLC above the wire. Should I do that or will just having wires completely covered be fine?
Heat Mat | The Underfloor Heating Specialists

cheers
Sharon

 

[CJ]

3mm cables.

5mm self level Is fine

 

[peteablard]

I don't think I've ever put that much down over UFH, normally 2-3mm

 

[Andy Allen]

I normally allow 2 m2 per 20 kg bag..

 

[Dave]

It will state in the pdf of your choice of slc , the minimum depth required , some say deeper over timber floors ..

But If your heat mat says 8mm , then isnt that your answer...

 

[MTiler]

It will state in the pdf of your choice of slc , the minimum depth required , some say deeper over timber floors ..

But If your heat mat says 8mm , then isnt that your answer...

But why do most people only just cover the UFH then and not go thicker? Thats why I asked.

 

[Dougs Third Go]

I'd normally go 2-3mm over cables Sharon, coupled up with a solid bed of adhesive using a 10mm trowel wiggled down to a 5mm solid bed you've got 8mm coverage there.

 

[Dave]

But why do most people only just cover the UFH then and not go thicker? Thats why I asked.

Ahh ok , i always go no less than 6mm , but depends on slc ..

 

[MTiler]

I'd normally go 2-3mm over cables Sharon, coupled up with a solid bed of adhesive using a 10mm trowel wiggled down to a 5mm solid bed you've got 8mm coverage there.

I'll be laying mosaics so wont be using an 8mm trowel lol.

 

[jobdone]

Always put down between 6-8 mm.
Webber floor flex states 10mm min over timber.
For mosaic i always do two layers as the second only a couple of mm and rolled out with the pin roller