ᐅ Missing plastering around ventilation ducts on the interior.

Created on: 24 May 2020 12:46

Hello everyone, the ventilation ducts run through a small storage room on the ground floor. During the interior plastering, a strip about 30cm (12 inches) wide along the pipes was left unplastered. Since this is an external wall, the question is whether it is absolutely necessary to plaster that section. I hope the picture makes clear what I mean. The adjacent wall is an internal wall.
Thank you

Zwei weiße, flexible Kabelrohre stehen an einer rauen Betonwand.

Mehrere weiße, gerippte Rohre stehen dicht an einer rauen Wand in einem Baubereich.

Stefan2.8425 May 2020 13:31

This means that due to airtightness, it should already be plastered, as it is an exterior wall.

Bookstar25 May 2020 18:04

An exterior wall needs to be plastered on the inside, but an interior wall does not. Sounds strange, but that’s how it is.

Stefan2.8425 May 2020 20:59

Ok. Thanks. I will address that then.

nordbayer26 May 2020 07:55

#10

It was the same with my brick walls on the gable of the insulated roof space—they remained unplastered. I then considered whether I should include plastering in the contract. Various contacts, including the energy consultant, said it was unnecessary and more of an aesthetic issue. Exterior plaster apparently already provides the necessary airtightness.

Stefan2.849 Sep 2020 07:48

#11

Bringing this topic back up. Yesterday, I had the blower door test. The tester said that the partly unplastered inside of the exterior wall is related to the results. There is also a second area like this.

So it needs to be repaired and then tested again.

11ant9 Sep 2020 17:58

#12

What type of wall material are you using there?

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ᐅ Missing plastering around ventilation ducts on the interior.

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