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What are the most common practical causes for unevenness occurring in the floorcovering?
How can the subfloor cause damage to the floorcovering? Whatare the most common practical causes for unevenness occurring in the floorcovering? Trowel impressions Trowel impressions that are made during application of the levelling compound with a flat trowel can often first be seen after the elastic floorcovering has been laid. For this reason, manufacturers of self-levelling compounds recommend the use of a toothed blade for surfacing. The serrations should be selected according to the quantity to be applied. The layer should be at least 2 mm thick to allow the self-levelling compound to spread properly. A final rolling with a spike roller will produce a nearly even surface.
Unevenness Unevenness can occur in elastic floorcoverings as a result of stones, compound residues and level differences in the floorcovering when fixing it over the whole surface. For this reason, the surface should be levelled and vacuumed before the floorcovering is laid. How can the subfloor cause damage to the floorcovering? Moisture The following may occur due to high moisture in the subfloor or the diffusion of vapour due to the lack of a moisture barrier: Stability If the subfloor is not sufficiently stable, there is a danger that the floorcovering, including the adhesive, will detach when the subfloor, such as levelling compound or screed, is placed under heavy stress.
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