Minimum Screed Depth For Underfloor Heating?

I’m Andy Parkin Managing Director of the Multi Awarding Winning Speed Screed.  Today I would like to talk about Minimum Screed Depth For Underfloor Heating.

Which Types Of Underfloor Heating Systems Are Included?

When we talk about Underfloor Heating in this example we are talking about “wet” systems and the coverage required inclusive of heating pipes.

All the following information is based on 15mm pipes, other than 10mm pipe with the low-profile system.

Minimum depth is based on the “high spot” within floor, assuming that a level floor screed is required, and not a profile of the substrate.

The “low spot” will mean an increase in depth.

Liquid Screed Depths (calcium sulphate).

35mm to 45mm total depth of screed inclusive of pipe (dependant on product chosen).

Low-Profile Systems

22mm total depth of screed

Traditional Sand And Cement (1:3 & 1:4)

65mm total depth of screed

Hydraulic Binder Screed (fast drying)

55mm total depth of screed

Retanol Xtreme (fast drying)

45mm total depth of screed

That covers the major types of screed.

I hope you now have a better understand of the Minimum Screed Depth For Underfloor Heating, however if you have any other questions please contact us. We love to help!