ᐅ Wall thickness of expanded clay aggregate (Liapor) walls only 14 cm
Created on: 1 Apr 2023 18:45
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MisterBorph
Hello, we are currently in the early selection phase of the builder. This company constructs solid prefabricated houses using Liapor.
Liapor is expanded clay (those small pellets) that is cast into entire walls in the factory, so it is not brick-by-brick. The wall thickness is 14cm (5.5 inches), plus 17cm (7 inches) of thermal insulation.
Of course, it’s not a monolithic wall, but only 14cm (5.5 inches)? After accounting for electrical boxes and empty conduits, that doesn’t leave much material. So, be careful not to drill too deep! I assume the structural integrity is fine, but does anyone have experience with whether that is unusual? Otherwise, we like the company.
Key facts for completeness:
Liapor is expanded clay (those small pellets) that is cast into entire walls in the factory, so it is not brick-by-brick. The wall thickness is 14cm (5.5 inches), plus 17cm (7 inches) of thermal insulation.
Of course, it’s not a monolithic wall, but only 14cm (5.5 inches)? After accounting for electrical boxes and empty conduits, that doesn’t leave much material. So, be careful not to drill too deep! I assume the structural integrity is fine, but does anyone have experience with whether that is unusual? Otherwise, we like the company.
Key facts for completeness:
- Semi-detached house in Baden-Württemberg, 7m x 12m (23 ft x 39 ft)
- Builder: “Hauser Massivbau” Vöhringen
- 14 cm (5.5 inches) Liapor, 17 cm (7 inches) insulation
- Interior walls: 14 cm (5.5 inches) Liapor
- Basement: 24 cm (9.5 inches) Liapor, 17 cm (7 inches) insulation
Bausparfuchs schrieb:
Why half knowledge?
There was the EW 58 with subtypes or subvariants. EW 41, EW 42, EW 52, or EW 65 were then adapted versions. The home construction was also centrally planned. Just like today, there were new development areas and almost all houses looked similar. Sometimes rotated, sometimes with a basement or garage and sometimes without, sometimes as a bungalow or duplex, etc. So it is half knowledge after all. I would not call the other models mentioned "adapted versions"; only the concept was the same. Owner-built homes were not centrally planned; everyone was on their own to improvise materials – although the Genex was excluded from the EW homes, there was no less resistance to the blue tiles. The house models were designed at a world-class level, i.e., above Western standards, and the concept was exemplary.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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Bausparfuchs2 Apr 2023 22:04The construction of privately owned homes was not centrally planned and strictly regulated, but it was far from unorganized.
Of course, it was not that simple. Not everyone was able to build a house. Material allocations were usually assigned. Supplies were mostly obtained through the BHG or, in rural areas, construction and materials were provided by the ZBO.
Private construction companies hardly existed. People either built their homes themselves with the help of neighbors or, more often, built illegally—on weekends or after working hours. Without connections, it was almost impossible for professionals like teachers or doctors to build; they had to buy an existing home.
You simply couldn’t buy everything with money.
Of course, it was not that simple. Not everyone was able to build a house. Material allocations were usually assigned. Supplies were mostly obtained through the BHG or, in rural areas, construction and materials were provided by the ZBO.
Private construction companies hardly existed. People either built their homes themselves with the help of neighbors or, more often, built illegally—on weekends or after working hours. Without connections, it was almost impossible for professionals like teachers or doctors to build; they had to buy an existing home.
You simply couldn’t buy everything with money.
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MisterBorph24 May 2023 22:1211ant schrieb:
Then I recommend that you hopefully in time read up here in the forum (or also externally in my post "A Semi-Detached House Has TWO Halves") about the risks of uncoordinated construction of semi-detached houses without involving your other half partner.Thanks, but fortunately we are still in good communication and even sit together with the supplier at the table. Of course, who knows what it will ultimately be like. But even if each of us chooses a different supplier, we still want to build in a coordinated way, both in terms of timing and other aspects.M
MisterBorph24 May 2023 22:34Bausparfuchs schrieb:
I’m not a fan of experimental building materials, especially those thin-walled constructions with a thicker layer of polystyrene than the actual wall thickness. I would never build a house like that.
There will always be problems when you want to make changes to the structure. Installing a kitchen, adding an awning or a patio roof, or simply attaching another light fixture — all of that becomes difficult. Exactly, that’s why I have a weird feeling about it. It’s a modern concept that sounds logical at first and has advantages (construction dries quickly, cost, etc.), but I always think that you never know what the future holds and modifications should be possible.
Expanded clay aggregate is hardly experimental anymore, yet asbestos was once a new material with great properties.
However, with traditional masonry and KfW 55 standard buildings, there is almost always polystyrene insulation on the outside as well. Supposedly, you can also fasten things into expanded clay. But overall, I share your feeling!
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MisterBorph24 May 2023 22:3711ant schrieb:
Personally, apart from spacing, I don't think much of ETICS.So only monolithic walls? Is your house KfW55? I've heard that the wall ends up quite thick then.11ant schrieb:
The boiler repairmen chisel into the walls like usual.Boiler repairmen? :-) I didn't quite get that.W
WilderSueden24 May 2023 23:23MisterBorph schrieb:
However, with traditional masonry and KfW 55, there is almost always some kind of polystyrene insulation applied on the outside.Nonsense. Don’t just repeat what you’ve heard somewhere. Take a look at the manufacturers' brochures. With Ytong, achieving KfW 40 standard is easily possible with a monolithic wall. The same goes for insulated Poroton bricks. Liapor also offers blocks suitable for this. Your option isn’t much thicker either—yours is about 31cm (12 inches), while monolithic walls for KfW 55 are usually around 36.5cm (14 inches). So, about three finger widths thicker.Similar topics