Garage anthracite south-facing - dark color problematic?

Sections not too large

means, do not use L-bead or do you mean the width?

However, the stiffening profiles were included in the offer from the start. I just don't know if they are sufficient then.

Yes, I would not take sections that are directly 52cm wide. Narrower ones, each of which has a stiffening profile, are certainly better in this regard.

May I ask a stupid question. What is meant by [Versteifungsprofil]? Where does this go?

On the gate inside, a cap profile is screwed over as much of the section width as possible.

On the inside of the door, a hat profile is screwed over as much as possible across the entire width of the section.

Thanks for the info, we should probably insist on the hat profiles, even though I don’t understand one thing, because I have never seen it / lack of experience:

Does the slat bow both inside and outside or only outside?

I’ve always understood that the outer sheet bends, so what good are hat profiles on the inside?

Construction of the slat (cross-section): Outside steel, foam in between, inside steel

Then the hat profile is only attached on the inside? Or do you mean a single-walled sectional door?

I saw a so-called “Silkgrain” surface in the Hörmann catalog, which has a thicker steel sheet than the normal one. Has anyone perhaps had experience with the warping on the south-facing side of the garage? Does it help?

I have always understood it to mean that the outer sheet metal bulges; then what good are hat profiles on the inside?

There must be a force-locking connection between the outer and inner profile half-shells; otherwise, the outer shell would practically be lifted off the rim if the inner shell does not follow. The hat profile is only useful insofar as it can also act indirectly on the outer shell.

Maybe soon there will be a new generation of panels whose insulation layer has a cryogel function (or the Nightssindalletoregrau trend will run its course).