How To Lay A Thin Floor Screed

Thin screed to level old concrete floor.

How to lay a thin floor screed.

Applying leveling screed to a concrete base is a popular building practice in the uk. Consult a contractor before screeding a large area installing a thin floor 2mm 0 08 over the screed or installing screed over underfloor heating. Modified sand and cement screed fast drying rapid strength type product you would be looking as thin as 10 mm. As you have found a thin layer of screed on concrete breaks up like toffee.

What your substrate is what products can you use that will go down to the desired thickness that you are looking for. I know that a normal sand cement screed will curl but i ve read that screeds reinforced with polypropylene fibres can go as thin as 25mm. How thin can i lay concrete on a floor. A floor screed is usually a cementitious material made from a 1 3 or 1 4 5 ratio of cement to sharp sand.

20 mm thickness should do it. 3 part series on insulating screeding tiling and grouting a travertine floor. 1 tonne of flooring grit or sharp sand mixed at 4 sand to 1 cement will cover approximately 15 square metres of floor when laid at 40mm thick. Specialist calcium sulphate flow screed would be 15 mm.

5 posts page 1 of 1. The easiest method to screed your concrete floor is to use 2 2 wooden screeds or 3 3 4 4 if you need a thicker layer of screed. Therefore you have to lay the screeds on the floor every 3 and you should use a spirit level to make sure they are perfectly aligned. There are many proprietary screeds on the market and information about these can be obtained from the manufacturer.

Discussion in builders talk started by barnjules jan 30 2017. Hi all i want to level my workshop floor. I ve got 28 30mm of flooring to raise. I laid the conc slab badly about 6 years ago did the whole shed in one hit 75m2 but my workshop is athird of the shed so 25m2 wants levelling.

Thin screed mix when we are talking about thin screed mix you have to look at what you are trying to achieve with them. Laying a level floor screed over a large area is difficult and to do so by eye requires years of experience. A smoothing compound can be laid a thin as feather edge 1 2mm. If you can remove the whole surface layer then use a latex self levelling compound to resurface the floor make sure the surface is wet before you apply the compound.

This provides a strong smooth surface to install flooring over. Hey guys how thin can you go with an underfloor heating screed bonded to a concrete slab.