Screed Floor Layers

A floor screed is usually a cementitious material made from a 1 3 or 1 4 5 ratio of cement to sharp sand.

Screed floor layers.

Bonding screed to the concrete base reduces the risk of cracking or curling. 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. Traditional screeds are generally suitable for use in hospitals schools hospitals retail homes etc. Floor screed is composed of cementitious materials and sand blended based on a suitable mix design and applied to provide a leveled surface for the floor finish which is introduced to the surface of the floor screed.

The standard screed mix of cement and sand mixed in the ratio of 1 3 5 is used for creating a defined layer for installing the final floor finish such as tiles wood linoleum vinyl etc. A strip of plaster or wood applied to a surface to act as a guide for a screed tool screed rail screed strip screed batten. This approach is best for thin layers of screed. A screed layer 35mm 1 4 thick is ideal if the concrete base is flat enough to ensure the screed is at least 25mm 1 thick at all points.

It may be applied onto either a solid in situ concrete ground floor slab or onto a precast concrete floor unit. The concrete must be strong and uncracked. In this case a bond between the screed and the layer below it would not exist and hence shrinkage is unrestrained. There are many proprietary screeds on the market and information about these can be obtained from the manufacturer.