I have a small problem that I don't quite know how to solve. We are planning to build our house in Isoleca where the wall height will be 2750 mm. The windows we are going to have are 2500 mm which means we only have 250 mm above the window. As I understand it, the isoleca system wants to place a light clinker beam above the window at 200 mm (standard) and then place the u-beam (200 mm) on this, which creates 400 mm which we don't have.
We can't raise the ceiling, so the question is whether I need to reduce the windows to 2300 mm (standard 100 mm intervals) to then place light clinker beam + pass block + U-block 450 mm or if I can order an isoleca beam at 250 mm and use it as a light clinker beam and u-block.
See picture
Anyone with experience with this? It can't be the first time you don't have 400 mm available above the windows.
One builds up to 2500mm. Above windows, a beam is placed, and U-blocks are used above the walls. Then, a 70mm passblock is split, and an edge is built on the beam so that it forms a U. The U-blocks around are also raised to achieve the same height. However, one must consider the roof load, etc. If there is a rafter above a window, etc., it is possible that this won't work, which a structural engineer must evaluate.
Or do you ignore the beam above the window and place an I-beam in the U-block that takes your roof load, the I-beam is embedded in the U-block and handles the load well.
In terms of calculations, you calculate it most easily as a concrete beam.
The solution was to lower windows to 2400 with an I-beam and then u-block over. So now we have 400 mm above the window instead, which works well. For larger sections (3600 mm and larger), we have two I-beams instead.