How To Lay A Thin Floor Screed

If you are looking to lay thin floor coverings and looking to take out the imperfections of the substrate.

How to lay a thin floor screed.

A floor screed is usually a cementitious material made from a 1 3 or 1 4 5 ratio of cement to sharp sand. 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. Thin screed mix when we are talking about thin screed mix you have to look at what you are trying to achieve with them. 5 posts page 1 of 1.

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. I ve got 28 30mm of flooring to raise. What your substrate is what products can you use that will go down to the desired thickness that you are looking for. There are many proprietary screeds on the market and information about these can be obtained from the manufacturer.

Hi all i want to level my workshop floor. Hey guys how thin can you go with an underfloor heating screed bonded to a concrete slab. Thin screed to level old concrete floor. 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.

A smoothing compound can be laid a thin as feather edge 1 2mm. 20 mm thickness should do it. 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. 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.

Laying a level floor screed over a large area is difficult and to do so by eye requires years of experience. Applying leveling screed to a concrete base is a popular building practice in the uk. 3 part series on insulating screeding tiling and grouting a travertine floor. However there is an easier way and this is where the word screed.

As you have found a thin layer of screed on concrete breaks up like toffee. 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. It may be applied onto either a solid in situ concrete ground floor slab or onto a precast concrete floor unit.

Consult a contractor before screeding a large area installing a thin floor 2mm 0 08 over the screed or installing screed over underfloor heating. Discussion in builders talk started by barnjules jan 30 2017.