Hello!
We are beginning to look into the topic of "buying a house" and have a specific offer in mind, but due to our lack of knowledge, we are not yet able to assess its "quality."
It concerns a semi-detached house designed by a developer, and initially, it’s about the walls.
- Load-bearing walls between floors: made of lightweight expanded clay aggregate masonry, for example, Liapor or Thermoton, thickness = 24 cm (9.5 inches)
- Party walls: made of sand-lime brick masonry or solid lightweight expanded clay blocks, thickness = 15 cm (6 inches), with a sound insulation board in between
- Stairwell walls: depending on the structural requirements, made of sand-lime brick or solid lightweight expanded clay blocks
- Non-load-bearing interior walls: 10 cm (4 inches) solid gypsum masonry
In particular, "Blähton" (lightweight expanded clay aggregate) as a masonry material is unfamiliar to me and difficult to evaluate.
If anyone would like to share comments about "Blähton" and the other types of walls, I would be very grateful in advance for any feedback.
Regards from Tom
We are beginning to look into the topic of "buying a house" and have a specific offer in mind, but due to our lack of knowledge, we are not yet able to assess its "quality."
It concerns a semi-detached house designed by a developer, and initially, it’s about the walls.
- Load-bearing walls between floors: made of lightweight expanded clay aggregate masonry, for example, Liapor or Thermoton, thickness = 24 cm (9.5 inches)
- Party walls: made of sand-lime brick masonry or solid lightweight expanded clay blocks, thickness = 15 cm (6 inches), with a sound insulation board in between
- Stairwell walls: depending on the structural requirements, made of sand-lime brick or solid lightweight expanded clay blocks
- Non-load-bearing interior walls: 10 cm (4 inches) solid gypsum masonry
In particular, "Blähton" (lightweight expanded clay aggregate) as a masonry material is unfamiliar to me and difficult to evaluate.
If anyone would like to share comments about "Blähton" and the other types of walls, I would be very grateful in advance for any feedback.
Regards from Tom
T
TonyUsedom15 Sep 2014 14:58Hello! I am currently facing the same "problem" as the original poster.
We are also in the process of building a house and are considering a company that offers solid construction houses using prefabricated elements.
The house would be built with a 26cm (10 inch) expanded clay wall, 14cm (5.5 inch) polystyrene insulation, and plaster.
I spoke with a homebuilder from my social circle who said that if you build, you should use a 36cm (14 inch) aerated concrete wall with facing brick.
That is probably the best option, but not affordable for everyone.
Now my question...
Are the walls I first described completely unsuitable, or is this simply a modern building method where thick masonry is no longer necessary?
I have also heard that polystyrene can promote condensation on the exterior surface, which eventually leads to mold. Is there any truth to this?
Thank you in advance for your answers.
We are also in the process of building a house and are considering a company that offers solid construction houses using prefabricated elements.
The house would be built with a 26cm (10 inch) expanded clay wall, 14cm (5.5 inch) polystyrene insulation, and plaster.
I spoke with a homebuilder from my social circle who said that if you build, you should use a 36cm (14 inch) aerated concrete wall with facing brick.
That is probably the best option, but not affordable for everyone.
Now my question...
Are the walls I first described completely unsuitable, or is this simply a modern building method where thick masonry is no longer necessary?
I have also heard that polystyrene can promote condensation on the exterior surface, which eventually leads to mold. Is there any truth to this?
Thank you in advance for your answers.
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