Hello everyone, I hope some experts here can offer me some advice. We are about to start building a single-family house. We have received several quotes from different construction companies. Each company recommends a different type of exterior wall construction, so I would like to ask for your opinion.
I am aware that this topic has been discussed many times before, but I can only find outdated information online.
The house will be built in Fürth (Bavaria). The location is relatively quiet, but there is a highway about 400 m (440 yards) away, which is barely audible from outside. The interior walls are planned to be made of sand-lime bricks.
The following materials have been proposed for the exterior walls:
- 36.5 cm (14 inches) aerated concrete (0.09)
- 36.5 cm (14 inches) porous fired clay bricks (0.10), laid with lightweight masonry mortar LM 21
- 17.5 cm (7 inches) sand-lime bricks combined with an external thermal insulation composite system (ETICS) of 150 mm (6 inches). This involves attaching rigid foam panels with a fiberglass mesh reinforcement layer to the outside of the masonry.
- Poroton T8, T7
- Liapor SL, Liapor, Super-K-Plus, etc.
I would appreciate any help and advice in making this decision.
Thank you in advance for your valuable support!
I am aware that this topic has been discussed many times before, but I can only find outdated information online.
The house will be built in Fürth (Bavaria). The location is relatively quiet, but there is a highway about 400 m (440 yards) away, which is barely audible from outside. The interior walls are planned to be made of sand-lime bricks.
The following materials have been proposed for the exterior walls:
- 36.5 cm (14 inches) aerated concrete (0.09)
- 36.5 cm (14 inches) porous fired clay bricks (0.10), laid with lightweight masonry mortar LM 21
- 17.5 cm (7 inches) sand-lime bricks combined with an external thermal insulation composite system (ETICS) of 150 mm (6 inches). This involves attaching rigid foam panels with a fiberglass mesh reinforcement layer to the outside of the masonry.
- Poroton T8, T7
- Liapor SL, Liapor, Super-K-Plus, etc.
I would appreciate any help and advice in making this decision.
Thank you in advance for your valuable support!
Yes, because anyone building with ETICS (external thermal insulation composite systems) is seen as the devil!
Sometimes I can’t believe some of the statements made here...
Regarding the topic: you already know the pros and cons overall. Personally, I would prefer sand-lime brick, mineral wool, and brick veneer. The house is essentially shaded by the brick cladding.
The sound insulation is also good, and you can easily hang things on the walls.
It is also possible to use plasterable stone wool boards as ETICS.
Consider what you feel most comfortable with and what the builder prefers, because that is what the construction team will do effortlessly.
Sometimes I can’t believe some of the statements made here...
Regarding the topic: you already know the pros and cons overall. Personally, I would prefer sand-lime brick, mineral wool, and brick veneer. The house is essentially shaded by the brick cladding.
The sound insulation is also good, and you can easily hang things on the walls.
It is also possible to use plasterable stone wool boards as ETICS.
Consider what you feel most comfortable with and what the builder prefers, because that is what the construction team will do effortlessly.
Joedreck schrieb:
Think about what you feel most comfortable with and what the builder prefers. Because that’s what the crew will do efficiently, almost automatically. That's what I’m saying.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
Joedreck schrieb:
Consider what you feel most comfortable with and what the builder prefers. Because that’s what the team will then do easily in their sleep. Here, hopefully, we all agree.
@Threadstarter:
Don’t be afraid of plastic-based external thermal insulation composite systems (ETICS) or aerated concrete (AAC) walls. For single-family homes, there are practically no clear advantages or disadvantages unless you have specific circumstances (like a busy road opposite, making sound insulation a higher priority). I often like to quote the Fraunhofer study, which states that walls with ETICS generally show fewer facade damages than monolithic walls (thermal bridges are much better controlled). And this refers to ETICS systems from several years ago… Interestingly, objective studies are often ignored by critics of ETICS.
If you can accept the look of brick veneer, a cavity wall is certainly never a bad choice. Although we personally find plastered houses more attractive, we ultimately decided on brick veneer.
Tego12 schrieb:
If you can live with the brick-style appearance, double-shell construction is definitely a safe choice. We personally find plastered houses more attractive, but in the end, we decided on brick. Where double-shell construction is considered the best option, this should not only apply to facing brick or cladding. The outer leaf can also be plastered (or you can combine styles: some areas with exposed brick and others plastered).
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
11ant schrieb:
Where double-wall construction is considered the best option, this should not only apply to exposed brickwork / facing bricks. A front wall layer can also be plastered (or a mix: some sections as exposed brickwork and others plastered).You are right, but with our builder the option of double-wall construction plus plastering would have been even more expensive... and the budget was limited at some point. We could also have built with calcium silicate bricks + external thermal insulation system + plaster, but that was not the "standard" of our construction company, and as I said, I don’t want to dictate anything to them where they have no established routine, because proper execution is simply the most important thing.
Tego12 schrieb:
but the option would have been even more expensive with our builder using double-wall construction and plastering... This really comes down to experience: if the contractor is used to delivering exposed masonry quality, then adding plaster is an additional step and the total cost increases. Another contractor might treat the brickwork under plaster more as a "second choice" material with less perfect edges, saving time on precise workmanship during masonry, so despite the extra materials and work step, the price can be similar.
I mainly wanted to point out that the concept of "double-wall" construction shouldn’t automatically be dismissed, especially if you’re not a fan of the look of facing bricks or sand-lime bricks. Even then, this type of wall build can be a good option.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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