ᐅ Visible joint pattern on the plaster surface.

Created on: 15 Feb 2020 09:19
C
cgonsior
Hello everyone,
I have an appointment with my site manager next week. Before that, I wanted to gather some opinions and maybe someone has already experienced the same issue or at least seen it before.

The problem is as follows:

Last week, when it was raining very heavily and the wind was quite strong, our facade suddenly looked like this (see photo). You could clearly see the joints of the blocks through the render and there were slight cracks in the base area. Does anyone have any idea what this could be? Could this indicate a construction defect? For example, an insufficient base coat thickness?

Details about the house:

Year built: 2016
Masonry: 30 cm (12 inch) Ytong blocks, glued
Render: according to the building plan, 15 mm (0.6 inch) base coat and 3 mm (0.1 inch) top coat

Außenwand eines Hauses mit der Nr. 9, kleinem schwarzen Würfel und Fenster rechts.


Graue Hauswand mit weißem Fensterrahmen, horizontalen Lamellen und Kiesstreifen am Fundament.
Tarnari16 Feb 2020 01:10
Well, what counts as minor issues? What doesn’t?
I am fully aware that other problems can or will occur. But they don’t have to. And to me, that is just as bad as plaster falling off or mold developing.
Do you also consider that minor?
I also don’t think this is normal. I have never seen it before. To me, that means it is not standard. Any counterarguments?
bauenmk202016 Feb 2020 09:22
Does the water run down the facade there? Because it’s also on the base of the wall (which doesn’t look very good either), but there is nothing visible under the window sills.
N
Nordlys
16 Feb 2020 09:35
You always have driving rain during storms, pushed by the wind onto the windward side of the house. It's like spraying it with a hose. That’s how it is. Then it gets wet. Then the water drains downwards.
C
cgonsior
16 Feb 2020 15:13
Inside, there is nothing visible, and our heating costs are well within the expected range. It’s really just the appearance on the outside during heavy rain.