Tear down lightweight concrete wall against crawl space

[Tubie]

Hello! We have a Ytong house from '57 where, as a step to reduce radon levels in the bedrooms (together with mechanical ventilation), we plan to demolish the wall towards the attic, which also consists of lightweight concrete similar to the rest of the structure. A new wall will be built with wooden studs in the exact same location.

The wall is constructed of 200 mm blocks and rests on a concrete slab. I am almost convinced that the wall does not support the roof trusses; instead, the supports visible in the attic do. However, I am grateful for any opinions or if someone has demolished a similar structure so that I don't have to hesitate when we bring out the rotary hammer on Monday.

 

[anaitis]

If it is true that the wall is 7 cm thick, then I don't think it is load-bearing.

 

[Tubie]

If the wall is indeed 7 cm thick, I don't think it's load-bearing.

thanks for the reply but it's the left wall towards the kattvind in the drawing

 

[Åsa Lund]

thanks for the answer but it is the left wall towards the kattvind in the drawing

Since it connects to the råspont and is not detailed to connect to the trusses, I would say it is 20 cm thick to provide thermal insulation. Additionally, the lambda value is specified, which indicates that this property is important.

 

[Tubie]

Since it connects to the tongued and grooved sheathing and is not specifically designed to connect to the rafters, I would say it is 20 cm thick to provide thermal insulation. Additionally, the lambda value is specified, indicating that property is important.

Thanks for the reply. Made the same interpretation

 

[Tubie]

Said and done. And the house is still standing.

Fantastic feeling to know that the kids now have their pillows against a stud wall and no longer blue concrete.