Self Leveling Screed Coverage 🏼👉 All You Need To Know About Self Leveling Screed Coverage

Self Leveling Screed Coverage Find Out Andy's Thoughts - All You Need To Know About Self Leveling Screed Coverage

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I will also cover topics on:
self leveling floor screed
liquid screed
flow screed

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Self Leveling Screed Coverage

I’m Andy Parkin, Managing Director of the Multi-Award Winning Speed Screed. I’m here to talk about self leveling screed coverage.

What Is Self Leveling Screed Coverage
Firstly, I have to say that whilst the term “self leveling” is used extensively in the industry, I don’t believe that there is such a product. Yes, self-smoothing, but not self leveling. These products generally have excellent placement qualities but pour the screed into one area and expect it to run and self-level, then you will have problems.

We can split self leveling products into two general categories for ease:
Smoothing compounds (normally laid from 1-15mm)
Flowing screeds (calcium sulphate and cementitious 15-80mm)
A question often asked about self leveling screed coverage is “I’ve only got 10mm, or only20mm, is that OK for a self leveling screed?” Just what screed coverage do you need?

The self leveling screed coverage is driven by the type of substrate and the screed product.

Bonded
The screed is bonded directly to the substrate, normally using a bonding agent or primer.

Unbonded
Usually unbonded screeds are laid directly onto membranes, however a screed laid directly onto a substrate could be classed as unbonded if no bonding agent is used. Even without a bonding agent the screed may still bond itself, and so this method is classed as semi bonded.

Floating
Screed is laid directly onto acoustic or thermal insulation. There could also be a membrane between the screed and the insulation.

Below is a selection of screeds and the screed coverage required.

Liquid Screed (Calcium Sulphate)
Bonded 15mm (Gypsol TS15)
Unbonded 15mm (Gypsol TS15)
Floating 35mm Domestic & 40mm Commercial
20/25mm coverage over underfloor Over Underflooring Heating depending on product
Liquid Screed (Fast Drying Cementitious Belitex)
Unbonded 35mm
Floating 35mm Domestic & 40mm Commercial
30mm coverage over underfloor Over Underflooring Heating
Smoothing Compounds
Bonded 1-10mm dependant on product
I hope this helps with your “Self Levelling Screed Coverage” questions, if you would like any further help please get in touch. We love to help!

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