ᐅ Cracks in the Screed: Are They a Problem?

Created on: 6 May 2020 18:12
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Onik900
Hello,

We have the final inspection of our house next week. Today, we thoroughly examined the house and noticed that long cracks have appeared in the screed on the ground floor. Also, the corners at the patio doors are rounded.
The builder says these are normal stress cracks and nothing to worry about.
Do these cracks necessarily need to be repaired? What happens if we simply lay our vinyl flooring over them now?

Also, does anyone know what these 'cables' (last picture) in the screed are?
Thank you in advance
Obere Perspektive: Person in Jeans und schwarzen Sneakern steht auf rauem Betonboden mit Riss.


Türrahmen-Ecke mit Türscharnier; staubiger Sandboden in der Ecke.


Vertikaler Riss in einer rauen Betonwand, daneben eine Treppenstufe sichtbar.


Graue Betonoberfläche mit einer senkrechten Risslinie in der Mitte.


Verrostete, gebogene Metallstange ragt aus einem Sandloch am Strand.
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Onik900
7 May 2020 09:48
Thank you for the detailed response. The house has underfloor heating, so it is a heated screed.
KlaRa7 May 2020 10:24
@ Onik900:
Please scan the floor plan, mark the room where the entrance photos (showing the alignment strip in the middle of the room) were taken, and indicate the position of the mentioned alignment strip.
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User0815
7 May 2020 10:59
And if only professionals are allowed and expected to participate here, 9 out of 10 users could be deleted. This is an online forum after all; if you only want experts, you should ask them directly (and probably pay them as well). Or am I mistaken?
KlaRa7 May 2020 11:10
User0815 schrieb:

And if only professionals were allowed and expected to respond here, about 9 out of 10 users could be deleted. This is an online forum after all; if you only want experts, you have to ask them directly (and probably pay them). Or am I wrong?

I could say humorously:
Raise your hands and be thankful that the "screed/floor coverings/tiles/wood flooring" section of this forum is different.
Anyone who asks here wants a professional answer. And in most cases, that’s exactly what they get, based on the original question and described situation.
And all of it without payment…
G
guckuck2
7 May 2020 11:12
KlaRa schrieb:

The installation of edge strips clearly falls under the trade category of "screed work" and is mentioned in the various screed standards, which I prefer not to list here. In my entire professional experience, I have never seen a contract where the placement of screed edge strips is assigned to a different trade. No, that assumption is not correct!
nordanney schrieb:

I only know it this way: the heating installer lays the perimeter strips. With the fastening system, the edge strips are installed first—and in practice, the heating installer always does this. Tender or no tender. Theory or no theory.
And that’s how it was here too. Bet on it?


I see it differently as well. From the construction sequence point of view, the heating installer comes first; they do the insulation, edge strips, roll jet, and underfloor heating.
The movement joints, yes, those are done by the screed team, but edge insulation strips on the wall—that’s something I’ve never seen. From a workflow perspective it’s impractical and non-sequential. Especially since edge insulation strips on the wall are very simple to install, it’s hardly worth the effort or travel to bring in a separate trade just for that.
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Bookstar
7 May 2020 11:36
It was different for us. First, the screed company prepared everything, including the edge insulation strips. Then the heating installer came and laid the underfloor heating pipes. After that, the screed was poured.

So, where is the problem now?