ᐅ Insulation for Existing Masonry Walls

Created on: 7 Feb 2012 12:25
D
Dyasound
D
Dyasound
7 Feb 2012 12:25
Hello everyone,

I have already read a lot about the mentioned topic. Unfortunately, most of the information referred to the optimal options for new construction: single-layer, double-layer, T8, and so on.

But what about when a masonry wall (T14 30cm (12 inches)) already exists? I understand that applying an external thermal insulation composite system (ETICS) on smooth concrete blocks is not ideal. The question is how, and what type of insulation can be added to this existing wall? The requirements are a total thickness of less than 20cm (8 inches) and no plaster finish.

Best regards
€uro
7 Feb 2012 13:51
Dyasound schrieb:
...But how does it look if a masonry wall (T14 30cm (12 inches)) is already in place? I have already realized that an external thermal insulation composite system (ETICS) on aerated concrete blocks is not ideal.
Why?

Best regards
N
NorbertKoch
7 Feb 2012 19:06
Hello,
like Euro, I don’t understand that statement either. And why no plaster on the ETICS?
Is some kind of cladding planned?
There are so many insulation materials suitable for this.
D
Dyasound
9 Feb 2012 13:34
Hello,

thank you for the responses. I was away, so I’m only able to reply now.
There are many opinions regarding ETICS (external thermal insulation composite systems) on Poroton T14 blocks. From what I have read, it is often discouraged. I can’t say why, but maybe you can provide some insight.

For aesthetic reasons, brick slips are planned to be installed. Full facing bricks are not an option due to their thickness. Would there be a dew point problem? The brick slips are not exactly vapor-permeable.
€uro
9 Feb 2012 17:14
Dyasound schrieb:
...There are many opinions on the topic of ETICS on Poroton T14. From what I have read so far, it is often discouraged. I can’t say why...
Statements without explanation are probably not a suitable basis for decision-making. 😉
Dyasound schrieb:
...Would there be a dew point problem? The thin brick slips are not necessarily vapor permeable.
That can definitely happen.

Best regards
D
Dyasound
10 Feb 2012 07:58
Thank you €uro,

since I have not been able to find any explanations so far, I was hoping to get some help here.

Which insulation materials should be used to extend the existing wall? And how can facing bricks (or brick slips) be applied? I will also consult an advisor soon, but I think it’s better to already be familiar with the subject.

Best regards

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