Liquid Screed
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What Projects Could Liquid Screed Be Used For?

With a wide range of screeding options available, it is easy to get a little lost while trying to choose the right screed for your project.

Following is a list of the different ways of using liquid screed for various types of flooring projects. We hope you will find this information helpful in choosing the right specification for your project.

Liquid Screed

Liquid screed is also sometimes referred as anhydrite screed or flowing screed. It is a self-levelling screed which is poured directly onto a floor for fast application. Liquid screed is lightweight, environmentally friendly and a strong material.

Liquid screed is simply poured or pumped onto the floor that spreads out across the entire surface to achieve an even finish. Most liquid screed is made with calcium-sulphate as well as sand, water and various chemicals. The mixture is very quick to lay and is especially suited for large areas.

Liquid Screed construction is used in 4 ways and each is suitable for certain types of projects, which are listed below:-

Bonded Screed for Commercial Building Projects

For this type of liquid screed installation, the layer of screed is bonded fully to the substrate using a primer or bonding agent. This type of screed is ideal for thinner section screeds where heavy loading is expected. It is ideal for commercial buildings where a floor is expected to receive high traffic of people walking over. Commercial building projects use bonded screed for the final floor to give it a professional looking finish and make it sturdy and durable.

Unbonded Screed for Projects Requiring Thickness

As the name suggests, unbonded screeds are not bonded directly to the base but are applied to polythene or Damp Proof Membrane (DPM) laid on top of the concrete base. This type of screed construction is ideal for projects requiring thickness greater than 50mm for standard screed and 40mm for modified screeds.

Floating Screed for Residential Projects

For this type of screed installation, the screed laid on top of insulation to create thermally insulated flooring. This is mostly used in the flooring of residential properties. Flowing screed is thinner and is easily laid over the insulation, making it an ideal screed for residential projects that requires insulation.

Screed over Underfloor Heating

This type of screed construction is where the liquid screed layer is installed over underfloor heating pipes. One of the main advantages of the liquid screed is the efficiency of the material when installed over a UFH (underfloor heating) system.

A reduced depth of liquid floor screed, compared to traditional screeds, minimises heat storage, resulting in a floor that responds rapidly to user requirements thus increasing the efficiency of your underfloor heating system.

Liquid Screed flows around underfloor heating pipes, ensuring that there are no voids and resulting in an even, radiant heat throughout the room.

Liquid Screed Flooring Projects

The Advantages of Liquid Screed for Flooring Projects

Liquid Screed is designed to provide a smooth, level surface prior to the application of final floor finishes in various types of flooring projects, be it a commercial building or home. Liquid screed has flexible uses and can be used bonded, unbonded, and with or without underfloor heating as per the project requirements.

Liquid floor screeds have multiple advantages over the traditional sand cement floor screeds, which are as follows:-

  • Installation of liquid floor screed is 10 times faster and less labour intensive than traditional sand cement screed.
  • Screed depth can be reduced substantially, which means you can increase the thermal efficiency of your home or office by installing thicker floor insulation.
  • A reduced depth of floor screed means a reduced drying time and lesser weight.
  • Liquid Screed can be walked on 24 hours post application, meaning minimal disturbance to other trades on site, and a quicker overall process.
  • Liquid Screed can be force dried and final finishes can be installed as early as 7 days after the application of liquid screed.

Keeping these factors in mind, it obvious that liquid screed is a flexible screeding option for various types of flooring projects. It can be used for both commercial as well as domestic flooring projects, with functional floors such as ones with insulation and is ideal for the underfloor heating system.

So, whether you are looking to renovate or build a floor from scratch, liquid screed is an ideal material (bonded, unbonded, or floating) and you will have a final flooring that would be functional, long-lasting and aesthetically pleasing for you as well as your guests or clients.


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