[Solved] Terrace Roof: Fixing Bearing Beam on 20cm Styrofoam Facade without Trimming & Potential Issues

Hello, we have styrofoam g=20cm on the facade of the house and we want to build a terrace roof based on the wall, i.e. on a supporting beam screwed to the wall.
1. is there a method to fix the beam on this styrofoam, without trimming?
2. Does cutting a 20x20cm styro strip and screwing the beam through there have any negative effects? Greetings

1. I do not know a designer who would risk calculating such an invention.
2. thermal bridge if proper insulation is not maintained.

Buddy, if you are asking such a question, then your knowledge must not be too extensive in the field of structural design. I recommend having your idea (whatever it is) verified by a structural engineer.

Note No. 2. The supporting structure must be attached to the supporting structure! Unless you're building a self-supporting structure. Then you attach it to the wall through polystyrene ONLY to seal the joint between the structures. Otherwise, the load-bearing structure cannot be attached to polystyrene, which is not a structural element!

Buddy, since you're an automatic, it's probably normal that I have a distance to you.
1. don't worry, just add supports or truss elements - that's the hint I expected
2. well, the bridges used to be wooden, but dry wood, foam + 5 cm of styro and... "will you be satisfied?

minimaxi wrote:

don't worry, just add supports or truss elements - such a hint I expected

What supports? What truss? You asked if the beam can be fixed through polystyrene - the answer is NO.
Assuming that the roofing of the terrace will be light and no one will walk on it except for cats, I would solve the problem as follows: Bars Φ 20 embedded in the wall through polystyrene and inserted into the holes in the beam. The beam is slightly pressed against the polystyrene.

Whether such a solution will be possible, the assumptions need to be clarified; what dimensions of the roof, roof material and its weight, whether the roof "hangs" in the air or is supported in the corners not adjacent to the wall.

minimaxi wrote:

Buddy, since you're an automatic, it's probably normal that I have a distance to you.
...
I expected such a hint

I am not an automation engineer, although I employ automation engineers.

Precisely because you "expected" someone to support your ideas, I made it clear that I did not support them.

Why? So that you can distance yourself from your ideas. The distance to my competence is also correct!
___

P.S. I designed a few structures myself and most often I evaluate structures that have already been designed. Hence my statement.

P.S. When building a roof, you should take into account not only the cats, but also the snow load and resistance to wind pressure.

Topic resolved positively. You can give spacers in styrofoam and then the beam on styrofoam can be cool. Regards