Mount carport directly on the house wall, how to mount the purlin?

Hi

We want to design our carport so that it is attached on one side directly to the house wall. This way we save several anchors in the ground and later on there will be no posts in the way at the house wall. The reasons for this are that our house stands almost 10cm closer to the boundary than originally planned (why does one even pay 600 euros for surveying when anyone with a tape measure could do it better...) and now we have to see where we can fit the space for the double carport.

But how is the purlin (the board that "hangs" directly on the wall) mounted? Is it installed so high that it can be drilled into the intermediate floor ceiling with thick screws/threaded rods, etc.? The klinker brick itself can’t hold anything, and in my opinion, the 17.5cm aerated concrete wall is not the best friend for something like this either. So basically only the intermediate ceiling remains, which would have enough strength to hold the beam on the wall?! But can the carport even be that high?

Any countering from the inside is of course not desired (living space). Since this type of carport is not uncommon, there’s probably a solution for this?!

The house is a city villa with 2 full stories, clinker bricks on the outside.

Probably only a structural engineer will be able to tell you...

Contact the carport builder. They have certainly done something like this before and can first tell you the basic requirements.

Although personally, I have always been reluctant to "nail" a carport directly to the wall. You penetrate your clinker brick, create thermal bridges, etc. (however, my father simply anchored the terrace roof with a 5 m span mercilessly into the clinker brick at my parents’ house. It has been standing like that for over 40 years...)

We also place the carport directly against the wall, but on its own supports. Do the 10*10 cm supports really bother that much?

By the way: isn’t there a chance to hold the surveyor accountable? He should at least pay the additional costs. He messed up, not you! And that’s exactly why he earns crazy money. He should definitely have professional liability insurance...

Best regards,

Andreas

I would first ask the structural engineer and if he gives the okay, then a carpenter. Furthermore, the question of warranty regarding house construction and execution in relation to the carport extension should be clarified beforehand. I hope I have expressed myself reasonably clearly. Today I have a knot in my brain folds.