Roma roller shutter curtain - bent and scraping

Apparently, everything over 1 m in width can no longer be made durable with plastic. In other words, wide plastic roller shutters are now a wear part!

Oh dear, good to know.

Hello Andimann,

thanks for the valuable information. I was not aware of the DIN, and that is then a better basis for negotiation. Of course, I am trying to avoid a legal dispute here. But since it has now been almost half a year. It was not even considered necessary to take a look at everything on site (by the Roma customer service). The window fitter said that it already bends quite a bit - well, at least that.

The dimensions are 2.4m high and 2m wide. Every 4th or 5th slat is made of aluminum. Nevertheless, it warps and gets caught on the fly screens.

: the problem is unfortunately no longer just occasional but permanent. Unfortunately, it is difficult to photograph - but when you stand at the window, you can clearly see that it bulges inward. For 2m wide, it then goes in good 3cm in the middle - which should not actually be the case.
Even with the shorter windows with window sills and thus less "pull," it still gets stuck.

Cheers,
Mac

Edit: by the way, here is the text from the ROMA operating manual:
"When using roller shutters as sun protection, we recommend not closing them completely to ensure ventilation behind. With plastic roller shutters, this also reduces the risk of deformation."
-> it is not even a prohibition or obligation or a warning, just a recommendation.
-> I think Roma knows exactly that the DIN sees it differently and deliberately phrases it so softly.

the DIN

Which one?

With a width of 2m, it then goes about 3cm in from the middle

I've already seen finished plastered walls that were less dimensionally accurate...
Jokes aside, does the roller shutter already scrape the fly screen at 30 mm? Then it hangs pretty close to the glass. I was familiar with distances >50 mm for good reason.

update:
- PVC roller shutter slats will be replaced with aluminum ones; material surcharge is on me

: the roller shutter slats are not 5cm from the frame, more like 3, the fly screens are just under 1cm thick = ugly scraping
And if I start going into the issue with the plaster here, it will all get quite extensive. We had fun with that too.