ᐅ Subfloor Preparation for Click Vinyl Flooring

Tolentino schrieb:

Is that really the case? Or put differently, do you need a perfectly smooth screed when using impact sound insulation?
My carpenter (Schieva) often works on projects like this and spends a lot of time in new buildings. He says that nowadays it’s no longer necessary, and he would criticize a new screed if you can’t directly install click flooring on it without leveling compound.

This depends on many factors and ultimately is also a matter of contract terms. You need to see what has been agreed upon in the purchase contract or building specifications. In our case, it states that “leveling the screed with appropriate leveling materials and filler is not part of the flooring installation work.”

There are flatness tolerances that apply to surfaces like ceilings (top and bottom), subfloors, screeds, floor coverings, walls, wall coverings, and suspended ceilings. The DIN 18202 standard for building construction regulates the limit deviations, angle tolerances, and flatness tolerances for the execution of structures. We have hired an external building inspector to verify this accordingly.

Hello everyone,
I thought this topic fits best for my question:
We want to install click vinyl flooring over an old tile floor with underfloor heating (!). On the ground floor, we have already successfully applied self-leveling compound ourselves and laid the click vinyl. We now want to do the same on the upper floor (same construction, also underfloor heating), but I noticed some hollow-sounding tiles there. So the tile adhesive is probably loose. Everywhere you read that these tiles should be cut out and re-adhered. My question is – what happens if I don’t do this, since it’s only a few individual tiles, and just pour the leveling compound over them? I don’t want to break them out because of the underfloor heating.

Thanks and best regards