Mounting a carport on a prefabricated house with a wooden stud frame?

Hello everyone,

now that we can finally slowly start dealing with the carport planning, the following (fundamental) question arises, about which I would like to know your opinion…

Briefly beforehand: we have a prefabricated house (Fertighaus Weiss) in timber frame construction (built in 2014), probably an aluminum carport (7 x 3.50 m) with VSG 8mm roofing will be installed.

We would actually like to mount the carport directly on one side to the house, which should be possible in terms of the statics/load-bearing capacity of the wooden beam running on that side of the house. However, the house building company recommends a free-standing construction in front of the facade, for the following reasons:

- with such constructions, the subsequent connection or the choice of connection elements is problematic, as the connection elements might no longer be able to bear the loads

- insulation (WDVS) must be damaged at these points


What do you think about this?

Last year we had a pergola awning installed (also directly on the wall). They used spacers/distance sleeves (so that the insulation is not compressed). So far it holds perfectly! : -)

Greetings from the Swabian region!

Hello everyone!

Too bad, no answer yet! I would be happy if someone could write something about it ; - )

The static calculation of a prefabricated house may allow this, but it is usually never verified by calculation. However, if you have had this verification calculated, the issue of insulation and durability of the fastening materials is purely a craft matter.

Plan all connections with sufficient dimensions, execute them correctly in terms of craftsmanship, and ensure weather protection constructively. However, the option "freestanding with 2mm air" has fewer sources of error and is also easier to build.

Do you know exactly where the beam runs, and does it then also match the height of the carport?

I wouldn’t screw it to the house. I would even leave a little more than 2mm of clearance. About 5cm or so. Due to wind load, all structures move a bit, and with a very small gap, I see the risk that the plaster might eventually get damaged.

Neither the carport nor, especially, your single-family house should move by several millimeters due to wind... Then you have a completely different problem

- Insulation (ETICS) must be damaged at these points

For this reason, our carport also stands on its own posts. There are about 3 cm between the house and the carport now... who cares? Not us, no one sees it.