Can a screed be applied to any surface? We often hear this question. A cast floor is applied in liquid form and can be applied to almost any surface. However, each surface requires a different approach. In this blog, we explain which substrates are suitable and which preparatory work is required to install an EPI self-levelling screed.
A cast floor can only be applied to undamaged and clean substrates. Unevenness and damage must be repaired in advance. The substrates to be used must be stable, load-bearing and dimensionally stable. Cast floors can also be perfectly combined with underfloor heating.
Concrete is ideally suited as a substrate for an EPI cast floor. A concrete substrate is usually even and therefore requires less preparation. For better adhesion, the substrate should first be sanded. The EPI self-levelling screed is also suitable for use over a sand-cement or anhydrite substrate.
A cast floor can be perfectly placed over a wooden subfloor. The subfloor must be completely flat and uneven. Any seams, cracks and holes must also be completely sealed. In addition, the wooden subfloor needs to be pre-treated to prevent the wood from warping.
Tiles or tiles are suitable as a subfloor. The tile floor should be solid and undamaged. An additional leveling layer will fill the seams and gaps. This is how the best results are achieved.
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