ᐅ Screed installed three days ago and still damp?

Created on: 23 Jul 2023 13:44
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Bauherrin123
Hello everyone,

The interior plaster has been in place for 4 weeks now, and finally, the screed was installed in the house last Thursday. My neighbors, who are building with us, were airing out the house and mentioned that the attic is still very damp. Unfortunately, all the windows were closed when the screed was laid, and it’s extremely hot, so it’s currently not possible to enter. They ventilated the other two floors with shock ventilation. We will wait another day.

Now the painter wants to come next week to prime the walls and so on. However, I’m not ready for that yet. I want to ventilate thoroughly and let the screed dry properly first. I wanted to ask you if it’s really necessary to wait? We will be applying primer on the plaster and then spray paint directly afterwards.

What else should I consider regarding the screed, and when can flooring be installed on it? What work can be done in parallel once the screed can bear weight?

Best regards,

thank you!!
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xMisterDx
26 Jul 2023 22:39
sysrun80 schrieb:

I don’t quite understand the problem. In our case, 1. some areas of the screed were not installed over the underfloor heating, and 2. some parts of the screed were completely omitted to allow for such “messy” work afterward. And why would you plaster a drywall partition again?

For cost reasons, it has become quite common to build walls on the upper floor using drywall instead of solid walls.
A drywall partition wall in the bathroom or as an interior wall, where a sink, vanity cabinet, large mirror, shelves, etc. will be mounted later, must transfer a significant load down to the floor.
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sysrun80
26 Jul 2023 22:40
Oh, you mean full, floor-to-ceiling walls. I was thinking more of partial walls or half-walls in the bathroom, etc.
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xMisterDx
26 Jul 2023 22:44
Even in the bathroom, you should not underestimate the load a drywall partition would transfer to the screed when a washbasin and a vanity cabinet are attached. Plus the weight of the tiles that will be glued on top. Because even the insulation underneath the screed can only bear a limited amount of weight.
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Bauherrin123
26 Jul 2023 22:45
sysrun80 schrieb:

Oh, you mean full, floor-to-ceiling walls. I was thinking more about partial walls in the bathroom, etc.

Sorry, maybe I’m not explaining myself clearly. Here are the walls and ceiling from the attic, for example, and then in the bathroom the wall behind the toilet and the partition just to hide the drains.
Attic with sloped insulation: roof window, wooden beams, and insulated roof surfaces.

Attic room with roof window, visible insulation, and unfinished walls.

Ceiling insulation with wooden battens and building foil in the shell construction stage.
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Bauherrin123
26 Jul 2023 22:52
xMisterDx schrieb:

You shouldn’t underestimate the load that a drywall partition would transfer to the screed in the bathroom, especially if a washbasin and a vanity cabinet are mounted on it. Plus, the weight of the tiles that will be applied on top. Even the insulation under the screed has a limited load-bearing capacity.

Okay, so what does that mean exactly? Is it nonsense that they are installing the walls on Wednesday, which is about two weeks after the screed, so they just have to wait? For example, with the neighbors, the bathroom wall is already finished. Honestly, I hadn’t considered the weight aspect at all.
Shell construction of a bathroom: green drywall panels, exposed water connections and cables.
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sysrun80
26 Jul 2023 23:04
Bauherrin123 schrieb:

Okay, so what does that mean now? Is it nonsense that they build the walls two weeks after the screed, like on Wednesday, and that they have to wait? For example, at the neighbors, the bathroom wall is already finished. Honestly, I hadn’t even thought about the weights.

Stay calm ;-) You’re not installing a car lift here. Sometimes people tend to exaggerate to emphasize their points and imagine the worst-case scenario. 😉