I’m Andy Parkin, Managing Director of the Multi-Award Winning Speed Screed.
Cement Screed Thickness? Just how thin can you go?
We are often asked about cement screed thickness, and mostly just how thin can it go? What depths can it go up to?
Traditional Sand And Cement Screed
A traditional sand and cement screed can go as thin as 40 mm bonded. That would be bonded onto concrete substrate.
With a membrane (unbonded), that would be 50 mm for a traditional screed.
In a floating construction it would 65 mm for domestic and 75 mm for commercial when laid on top of insulation.
There are other specialist semi-dry screeds that will allow you to go down to as little as 10 mm bonded and 35 mm floating.
Some smoothing compounds can be laid from what is described as “feather edge” which is around about 1 mm. At this depth the compound would need bonding to the substrate.
I hope this gives you an idea of the possibilities and just what the cement screed thickness needs to be for your project.