No gutters or rails on the ground - Bellows-type façade that makes it easy to open the roof - 100% polycarbonate - Various colors in lacquered and anodized finishes. Main Works installed in Portugal(click on the image to see all the photos)- On the roof we use aluminum profiles of our own design and 10 mm Lexam thermoclear Polycarbonate, translucent, with double-sided UV protection. - On the sides and tops of the telescopic roof we use aluminum profiles of our own design and 4 mm transparent Compact Polycarbonate (glass type). This Polycarbonate is unbreakable, which allows the "glass" to be bent at any type of angle, thus avoiding the use of more aluminum profiles, which would make the Telescopic Roof "heavier" in aesthetic terms. Compact Polycarbonate has double-sided UV protection, protection against yellowing and protection against expansion caused by temperature changes (a feature that does not exist in other types of alternative materials).- All accessories used in the Telescopic Cover, as well as screws, are made of Stainless Steel.- All joint brackets are made of solid aluminium, meaning they do not deteriorate over time.- All the frames of our covers contain EPDM seals - Ethylene-Propylene-Diene-Monomer Rubber- Our cover does not have a track on the floor, because it simply does not need it. Only weakly structured covers need a track on the floor to support them. Our cover is self-supporting, so it has a set of wheels to slide smoothly on the ground without damaging the floor and without it being compromised by a track filament that is uncomfortable, unsightly and accumulates rubbish.