SRD-Z/L

The durable external cladding of the light tunnel effectively protects its structure from water, wind and changing weather conditions. Made of corrosion‑resistant sheet metal, it features an integrated flashing that ensures a watertight connection with the roof surface without the need for additional mounting elements. The cladding, available in anthracite RAL 7016, grey‑brown RAL 7022 or black RAL 9005, highlights the modern appearance of the light tunnel, complementing contemporary roofing materials.

There is an aluminum tube coated with a special silver-based reflective coating inside the light tunnel. This effectively reflects and directs up to 98% of sunlight into the room. The mirrored surface ensures even diffused daylight is efficiently utilised. The light transmitting tube is 210 cm long for sizes 250 and 350, and 180 cm long for size 550 due to the lack of SRK elbows. The tube is ideal for longer light transmission routes, up to 12 m, and its length can be adjusted using SRM modules, depending on the spatial attic arrangement.

The final interior element of the system is a frosted cover, harmoniously integrated with the ceiling. Its task is to distribute daylight evenly, regardless of the angle of incidence, filling the room with natural, soft lighting. The diffuser provides access to light throughout the day, and after dark it can function as a lamp – it is enough to install the optional SLO light kit.