Basic Guide to Liquid Screed for Floor Construction

Modern flooring typically consists of several layers. The primary structural support comes from the concrete base, while sub-floors and insulation enhance function and stability for the flooring finish. Depending on the type of floor finish used, you can also choose from a variety of sub-floor or screed options.


Different types of floor screed


Traditional floor screed mixture is typically composed of sand and cement. You can order a bag and mix it on-site, or you can contact a supplier to deliver a pre-mixed blend ready for application. Sand and cement mix is usually semi-dry and applied manually.


Liquid screed, on the other hand, is a smoother flowing mixture which is either cement-based or anhydrite based. The mixture is usually delivered by the supplier and pumped on to the floor area. In this article, we will take a closer look at some essential details related to using liquid screed for flooring construction.


How long does it take to install?


Most installations today are done by floor screeding suppliers like The process is less time-consuming because they deliver the mix in a truck ready to be pumped to the floor. However, if you are thinking about a small DIY project for your home, you can always manually apply liquid screed in small batches.





Floor quality


One desirable characteristic of liquid screed is how it can cover up lumps and bumps on the concrete base. You can also achieve an exceptionally even floor because screed is flowing and you can easily level the surface if there are slopes. Liquid screed also helps optimise the heat conductivity of underfloor heating pipes which is why it is often chosen for such projects. Another reason to choose liquid screed is that it does not shrink, curl, or crack.


How long does it take to cure and dry completely?


Moisture is the number one enemy of concrete. Traditional cement mixes will take time to cure and dry before you can install the flooring. Anhydrite-based liquid screed dries faster than cement-based blends. If drying time is a consideration, perhaps it is best to consult with the supplier if you can have anhydrite-based screed used instead. But in addition to following the recommended drying time, it is still essential to conduct moisture testing before installing the flooring. Depending on the area, there are recommended humidity percentage and moisture content levels to ensure the optimum performance and durability of the floor.


Highly compatible with a concrete base


Most floors have a concrete base. As such, some screeding materials could pull apart if they do not bond with the base. Fortunately, this is not a problem when using liquid screed. Whether anhydrite or cement-based, you can guarantee that the mixture will adhere to the cement base layer provided that you allow the mixture to dry out completely.


In conclusion, there are many advantages to using liquid screed for flooring construction. If you are considering using liquid screed for new construction or renovation, contact a reputable supplier for more detailed information about screed specifications and quantity.


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