ᐅ Are lightweight concrete blocks and lattice bricks a good choice for building houses from the 1960s?

Created on: 25 Feb 2024 11:35
T
TorstenKandt
T
TorstenKandt
25 Feb 2024 11:35
Hello forum,

I am interested in purchasing a condominium in a multi-family building. The unit is on the ground floor (raised ground floor), and according to the construction description, the exterior walls and load-bearing interior walls of the ground floor are made of pumice stone and hollow clay blocks.

Could you please help me with the following questions?

1. Do pumice stone and hollow clay blocks have any particular advantages or disadvantages compared to other construction methods from the 1960s?

2. Are the hollow clay blocks likely located on the inside or outside? (The building is plastered, so I cannot see this easily). I ask because I personally don’t prefer pumice stone on the interior side when it comes to drilling holes and hanging things.

If it’s relevant: The basement walls are concrete, and the upper floors are made of pumice stone only (1st floor 30cm (12 inches), 2nd and 3rd floors 24cm (9.5 inches)). The party walls between units are made of solid pumice stone blocks.

Best regards,
Torsten
11ant26 Feb 2024 15:20
TorstenKandt schrieb:
1. Do pumice stone blocks and hollow clay blocks have any particularly positive or negative characteristics compared to other construction methods from the 1960s?
True to the saying "they have an awful lot of coffee in Brazil," most buildings in the Neuwied basin and the Pellenz region are built with pumice blocks, and I have lived in one for a very long time with satisfaction. Their properties are similar to those of expanded clay aggregate.
TorstenKandt schrieb:
2. Are the hollow clay blocks likely installed on the interior or exterior side? (the house is plastered, so I can’t easily see). I ask because, personally, I don’t prefer pumice stone on the interior side regarding drilling holes and hanging things.
You are likely misinterpreting this. See also ...
TorstenKandt schrieb:
If relevant: The basement has concrete walls, and the upper floors only pumice blocks (first floor 30cm (12 inches), second and third floors 24cm (9.5 inches)), and apartment partition walls are made from solid pumice blocks.
... it is unlikely that the exterior walls are cavity walls; rather, they are monolithic pumice block walls with interior walls made of clay blocks. But overall, we have already concluded that you would be better off continuing your search.
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