ᐅ Replacing the roof covering, roof tiles not possible

Hello,

We have a single-family house with a Berlin wave tile roof. The roof is now about 30 years old and urgently needs to be replaced, as the structure is no longer sufficient.

Unfortunately, due to weight restrictions, traditional roof tiles cannot be installed. The maximum weight allowed is around 15kg/m² (3.1 lbs/ft²).

Of course, there are alternatives to roof tiles, but I am not familiar with them. Does anyone have experience with any kind of lightweight roofing? It is especially important to me that the roof is not too noisy inside the house during rain, which might be an issue with metal roofs.

I look forward to your suggestions.

Best regards

Edit: As an example, we found something from Prefa that fits the weight requirement. However, I would appreciate it if someone has experience with these or other manufacturers.

Why not put another Berlin Wave style roof on it?

Because 1. they are in such a poor condition that they urgently need to be replaced, which I find less than ideal after about 30 years, and 2. unfortunately, they are only available in three colors, for example, not in glossy red.

What about roof shingles, would that be a solution?

There are lightweight concrete roof tiles, such as the Braas Doppel-S Aerolox. Roof tiles are always heavy. Plastic roof shingles weigh about 5–6 kg per square meter (11–13 lbs per square yard).

The topic is becoming relevant again.
Does anyone else have experience with alternative roof coverings for a residential house where roof tiles cannot be used due to their weight?