When we bought our house, the inspector mentioned that the roof trusses were self-supporting and that we could tear down interior walls without a problem if we felt like opening up the space.
The drawings of the roof trusses (the span is 9.41m). The house is located in southern Skåne.
Now I am curious if it would be alright to remove the wall (about 2.8m long) between the dining area and the living room (yellow circle) based on what the inspector said about self-supporting roof trusses.
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As seen in the drawing, there is already an "opening" in the wall next to the chimney (where the arrow points) of 1.5m, where the roof trusses do not have a partition wall for support.
It looks like a Mockfjärdshus. The trusses are built to be self-supporting and probably still are. I was just going to check the snow loads. They calculated with slightly low values when the house was built around 1960. What are the dimensions of the trusses' upper and lower chords? I tried to figure it out from the drawing without success. Where exactly in southern Skåne is the house located?
It looks like a Mockfjärdshus. The trusses are built to be self-supporting and probably still are. I just wanted to check the snow loads. They calculated with somewhat low values when the house was built around 1960. What are the dimensions of the trusses' upper and lower chords? I tried to read it from the drawing without success. Where exactly in southern Skåne is the house located?
The only thing I can find on the drawing is "AB Lättbetong".
The house is in Trelleborg, so you can hardly get more south in Skåne.
It's on the drawing, but I missed it in the photo.
Might be a bit hard to read, but from what I can discern it says "Truss for snow load 100kg/m2 (areas south of a line through Strömstad and Uppsala)", I assume this is correct.
Upper chord: 1 1/2 x 7" (I interpret it as one and a half times 7).
Lower chords: 1 1/2 x 7"
There are also dimensions specified for 150kg/m2 (remaining land, except mountain regions) and 200kg/m2 (mountain regions).
1 1/2x7 inches (read as one and a half times seven) corresponds to 37.5x175 mm. Interestingly, when the house was built, everything south of a line between Strömstad and Uppsala belonged to snow zone 1. Today, snow zone 1 includes a narrow strip along the west and south coast of Skåne (up to Ystad). The house is therefore in the right place. The definitions have changed so that snow zone 1 means that the snow load on the ground is 1 kN/sqm, which corresponds to 107 kg/sqm. I can't see any problems with tearing down the wall in question.
