ᐅ Assessment of Exterior Render Levelling Coat – What to Do?

Created on: 1 Dec 2023 07:06
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se_na_23
se_na_231 Dec 2023 07:06
Good morning,

attached are some example photos showing the condition around the house... According to the contractor, a leveling coat should fix this... Is that possible? The "texture" already seems insufficient.

If not, what should be done?

Thank you
Close-up of a rough concrete column with coarse texture; scaffolding in the background.

Exterior wall with coarse plaster, small flakes at the bottom; next to a dark window frame.

Beige plaster wall with coarse texture and dark shadow line beneath a metal edge.

White, roughly textured wall with two small dark spots.

Beige-gray wall surface with coarse, uneven plaster texture; left edge visible.

Exterior wall with beige plaster, white base, pipes, and scaffold poles; green marked rectangle.
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guckuck2
1 Dec 2023 07:55
The facade is a complete system. Evaluate it only when it is finished and not based on progress stages.

The white base is bold. Be prepared to repaint it at the end.
se_na_231 Dec 2023 08:44
guckuck2 schrieb:

The facade is a complete system. Evaluate it only once it’s finished, not during the work in progress.

The white base is a bold choice. Be prepared to repaint it at the end.

The plaster is the final layer... only paint will be applied afterward.

The base will be painted later – it won’t stay white.
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guckuck2
1 Dec 2023 08:55
se_na_23 schrieb:

Plaster is the final layer... Only paint is applied on top.

The base will still be painted - it will not remain white

Coatings are usually (but not always) part of the facade system and construction.
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Buchsbaum
1 Dec 2023 20:08
Before you get overwhelmed again with a flood of expert knowledge, here is the perspective based on my modest experience.

You had a ready-mixed pigmented silicate render applied, probably with a 2 mm (0.08 inch) grain size. Please correct me if that’s not the case.

The problem: the render in the bucket was not diluted with water—about one glass of water per bucket is needed. Because of this, the applied ready-made render is too thick and harder to smooth out. It was probably also rubbed too late, after the render had already started to set.
And now it looks the way it does.

One coat of paint will cover it, of course. But with a 2 mm (0.08 inch) grain size, not much of the original texture of the render remains. That’s the disadvantage of a fine grain size. If you paint over twice, the wall becomes smooth.

What do you want to do now? A legal dispute is risky. Paint over it? Basically, these things tend to fade from notice after a few months.
Who looks at your window reveal from 10 cm (4 inches) away?

I would leave it as it is. Karma is a bitch. Make a contract with the painter or construction company that they will repaint the house for free in 5 years.
Of course, you pay for the materials. In my experience, the exterior render always gets some dirt or marks in the first few years.
If you have to do it, you might as well paint the entire surface. Touch-ups always show.
se_na_231 Dec 2023 20:39
Mineral-based topcoat plaster has been applied...

Yes, it is becoming smooth... and this is already partly the case now