I need to replace a window in a house with that kind of porous blåbetongsten. The window is 150 cm wide and above the window, there's a course with stone before the wood facade begins. The stones above the window are regular blocks and not a beam, and have just rested on the window, so there are of course lots of cracks where the joints are. The load-bearing capacity is probably not an issue as there is a substantial wooden beam above, and the window has three mullions. But I don't want to do the same thing again and end up with cracks.
However, the problem is that the beam I would need should be at most 17 cm high, preferably a couple of centimeters lower. The beams I've seen have been 19 cm high and 15 cm wide. One option is to take such a beam and rotate it a quarter turn? I assume the load-bearing capacity is calculated when it's standing, but I probably don't need that much load-bearing capacity, I think. I just want to avoid cracks in the facade.
Or does anyone have another idea of what can be done? The final result will be plaster, so it has to be something I can plaster on.
However, the problem is that the beam I would need should be at most 17 cm high, preferably a couple of centimeters lower. The beams I've seen have been 19 cm high and 15 cm wide. One option is to take such a beam and rotate it a quarter turn? I assume the load-bearing capacity is calculated when it's standing, but I probably don't need that much load-bearing capacity, I think. I just want to avoid cracks in the facade.
Or does anyone have another idea of what can be done? The final result will be plaster, so it has to be something I can plaster on.
The trickiest part is to screw a few boards together into a form and oil it.
Leca balls are available at the hardware store in large bags. Then you only need cement and sand. And maybe four rebar rods.
Leca balls are available at the hardware store in large bags. Then you only need cement and sand. And maybe four rebar rods.