ᐅ Wall Construction in Solid Building Methods – Experiences?
Created on: 7 May 2024 21:30
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Johannes1982
Hello everyone,
I have a question for the experts: which wall construction would you recommend for exterior walls in solid construction? Why did you choose that option?
In my opinion, there are very different views on this. Is it better to use a 24cm (9.5 inches) brick plus 17cm (7 inches) external thermal insulation composite system (ETICS), or rather a 42.5cm (17 inches) Poroton brick without insulation?
For me, soundproofing and a comfortable indoor climate are important. I’m not very convinced by ETICS, but maybe I have been advised incorrectly. That’s why I am interested in hearing your recommendations.
What about the plaster? Silicate plaster or lime plaster?
I have a question for the experts: which wall construction would you recommend for exterior walls in solid construction? Why did you choose that option?
In my opinion, there are very different views on this. Is it better to use a 24cm (9.5 inches) brick plus 17cm (7 inches) external thermal insulation composite system (ETICS), or rather a 42.5cm (17 inches) Poroton brick without insulation?
For me, soundproofing and a comfortable indoor climate are important. I’m not very convinced by ETICS, but maybe I have been advised incorrectly. That’s why I am interested in hearing your recommendations.
What about the plaster? Silicate plaster or lime plaster?
fm-united schrieb:
We’ve just finished building and went for a solid double-leaf wall construction: 17.5 cm (7 inches) Poroton + 20 cm (8 inches) cavity insulation + 11.5 cm (4.5 inches) Poroton + exterior render. The building plan didn’t allow a brick veneer facade. May I ask how you designed your window reveals with this wall setup? Are they straight or sloped?
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fm-united8 May 2024 13:21familie_s schrieb:
May I ask how you designed your window reveals in this wall construction? With square reveals or sloped ones? We have "standard" reveals, so everything is at right angles. Or is that what you meant?
fm-united schrieb:
We have "standard" reveals, so everything is at right angles. Or is that what you mean? With thick walls, the reveals can be tapered to allow more light into the house. This is often seen in historic buildings.
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nordanney8 May 2024 13:39familie_s schrieb:
With thick walls, the reveals can be tapered to allow more light into the house. This is often seen in historic buildings. However, we are not actually talking about thick walls here. Moreover, historic buildings, including old castles, have a completely different window-to-wall area ratio. The “thick” walls in modern constructions are barely noticeable, and tapered reveals would not provide any significant benefit (in my case, they are about 55cm (22 inches), which is hardly noticeable – an older building with new insulation).
nordanney schrieb:
But we are actually not talking about thick walls here. Also, historically, houses up to old castles have a completely different window-to-floor area ratio. You hardly notice the "thick" walls in modern buildings, and tapered reveals wouldn’t have a noticeable benefit (in my case, the walls are about 55cm (22 inches), which you hardly notice—old building with new insulation). You’re right. But in some rooms (like a guest bathroom, for example), the windows might still be smaller. However, with the combination of brick and external thermal insulation composite systems (ETICS / external wall insulation), the windows are probably installed further inside the wall, which balances out the effect. I personally also just think it looks stylish.
J
Johannes19828 May 2024 16:12familie_s schrieb:
We are building with 42.5cm (17 inches) solid brick walls without insulation and achieve KfW40 standard. Does this mean the exterior wall requires no additional insulation at all, or do you use something else, like mineral wool, stone wool, or insulated plaster?
The windows, doors, etc. must then meet higher performance standards to reach the overall KfW40 rating, right? So this method is probably more expensive than using 24cm (9.5 inches) brick plus an external insulation system (EIFS / external wall insulation)?
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