I have a single-story house of 120 sqm, approximately 8x16 m. Built in 2005 on a slab foundation with underfloor heating throughout the entire slab.
The house is built without a support wall. The roof is supported by the frame in the exterior walls. Now I'm considering adding another floor. Is this possible without a support wall? The foundation is not prepared for this, so a support wall could risk cracking the slab in the middle.
You can of course use a steel beam to offset the load, but this would become 16 meters long and instead result in two large point loads. I don't believe in breaking up the floor and making a new foundation because there's underfloor heating everywhere.
Does anyone have an idea on how to solve this? Is it possible to reinforce it in some way so that it can support another floor?
The house is built without a support wall. The roof is supported by the frame in the exterior walls. Now I'm considering adding another floor. Is this possible without a support wall? The foundation is not prepared for this, so a support wall could risk cracking the slab in the middle.
You can of course use a steel beam to offset the load, but this would become 16 meters long and instead result in two large point loads. I don't believe in breaking up the floor and making a new foundation because there's underfloor heating everywhere.
Does anyone have an idea on how to solve this? Is it possible to reinforce it in some way so that it can support another floor?
Check with an architect about it. And if the house is as new as 2005, maybe the architect who designed the house is still around...
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· Västerbottens län
· 18 051 posts
I don't THINK that the slab would crack from a heart wall. The load on the slab will be double floors and essentially double the people. Concrete is strong.
The snow load will still be on the edge beam.
The snow load will still be on the edge beam.