We live in a one-story house from the late '60s and would like to add a second floor. Where we live, we are allowed to build 1½-story houses, so basically, it's just the roof that needs to be lifted (you can also raise the house 70 cm, so that might be relevant...).
Now we are wondering if it's possible. Does the foundation need to have a certain width, and are the wall thicknesses sufficient?
Does anyone know what rules apply? We don't want the whole house turning into a mess
Now we are wondering if it's possible. Does the foundation need to have a certain width, and are the wall thicknesses sufficient?
Does anyone know what rules apply? We don't want the whole house turning into a mess
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There are three different companies in Åtvidaberg that raise houses. I work for Åtvidabergs hus och takvåningar Ab and Åtvidabergs hus.
Call them and ask for quotes and ask to see how they had done on the drawings. I think they are a bit expensive but talk to a local carpenter and go through the drawings to see if he can handle it... It's simple to raise a house.
Call them and ask for quotes and ask to see how they had done on the drawings. I think they are a bit expensive but talk to a local carpenter and go through the drawings to see if he can handle it... It's simple to raise a house.
Smart idea, thanks! I've looked a bit at ready-made solutions, but now I'm leaning more towards having someone build on the spot. I live on Gotland, so the transport with prefab might be a bit too expensive, I guess...
Is it usually a problem with the load-bearing capacity in walls and the base? Does anyone know how to check?
Is it usually a problem with the load-bearing capacity in walls and the base? Does anyone know how to check?
We have looked at the possibility of building upwards. But it seems terribly expensive if you want to buy a ready-made roof lift. The guy is brainstorming about raising the walls by 1.20. Tips on places where you can buy ready-made wall blocks. New roof trusses with raised wall life would cost about 30,000. You might wonder why it costs between 500k to a million to buy ready-made? What is it that costs so much??
it's a smart idea... they probably have quite a large margin... but åtvidabergs hus o tak never rush if the weather is bad and it can cost a bit to wait a day with the assembly with carpenters, cranes, etc.
Get decent drawings of what you want to do and bring in a structural engineer to assess whether the foundation and walls can handle the additional load. That is probably the single most challenging part. It is a relatively small cost in the grand scheme to reinforce the foundation and walls. Designing the additional structure is easier, if you can't do it yourself, the carpenter can probably do it (but he likely won't want to guarantee that part...). To be completely sure, you can have the engineer do it as well.
As for regulations, it MIGHT be that the Building Committee wants to see that someone competent has done the structural calculations, but it probably varies greatly from case to case and among Building Committees.
As for regulations, it MIGHT be that the Building Committee wants to see that someone competent has done the structural calculations, but it probably varies greatly from case to case and among Building Committees.
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