ᐅ Roof made of HPL panels or laminated safety glass

Hello,

I am working on a project for my house and have a question.

Since I am designing my house with a strong focus on appearance and want something different from everyone else, I thought it would look great to use HPL panels or laminated glass panels instead of roof tiles.

With slate tiles, there is the method of symmetrical overlapping, where the tiles are about 60cm x 60cm (24 inches x 24 inches) and are fixed with some kind of clips and a substructure. In principle, a similar system should work with 1cm (0.4 inches) thick HPL or laminated glass panels, right?

Do you know if this is technically feasible? Maybe you have pictures of similar projects?

What do the roofer and the carpenter (responsible for the substructure) say?

I only know symmetric cladding for facade systems. Is that possible for roofs as well? There are gaps through which water runs down to the lower layer. So, a roof-on-roof solution would have to be found, right?

I am still in the planning phase and gathering ideas, so I have not consulted a professional yet.

That will probably be a custom-made solution for you. If it works, you should have a very deep pocket. The slate on the facade is already quoted as "starting from 110 EUR/sqm (1 sq ft) plus substructure," so just imagine the cost of the glass (is HPL even suitable for all weather conditions? – it’s basically a laminate).