I have a 1.5-story house with a basement built in '56. The house has a light concrete frame with cast floors on both levels. Now I'm going to extend the lower floor and have decided on a cast floor made as a slab on the ground but elevated equal to the height of the house's plinth. The floor between the 1st and 2nd floor is also concrete, and part of my extension is already done as I have a terrace on the lower level, 5*2.5 meters, with a balcony on the upper level, 5*2 meters. Now I'm going to extend the "terrace" to 5*4 meters, and thus I need to extend the balcony's floor, the "terrace's" roof, to 5*4 meters. It doesn't quite feel like the description was spot on ;-)
I could actually opt to make the floor to the second floor in wood, but since the entire upper part will be a balcony, I'm worried about leakage if I mix a concrete and wooden floor in the middle of the balcony, so I have pretty much decided on concrete there as well. However, this involves work with building forms, and I will probably need a pump truck to get the concrete up.
My question now is, what is the cost of casting, kr/sqm, a floor one floor up? At the outer edges, there will be slender steel columns, and I hope the connection to the existing floor can be done by doweling in the new one.
Please feel free to provide feedback on my construction and my ideas. I've been considering Planja's Combideck solution but don't know if it would make things simpler or cheaper.
