Rooflight in multiwall polycarbonate — LEXAN Thermoroof 20 mm + 45 mm rib

Deep inside a hall, light from wall windows does not always reach the places where work happens. Rooflights for sandwich panels introduce daylight through the roof and direct it towards the centre of the building. The interior feels more open, and workstations and circulation routes can more easily be arranged within a bright space. This practical addition to the envelope influences how the entire floor area is used.

Transparent or suitably light-diffusing roofing elements help brighten areas away from the façade. Racks, machinery and work zones can then be planned with more freedom from the position of side windows. Daylight changes the feel of a hall: a large space seems less enclosed and wayfinding becomes more intuitive. Depending on conditions and the illumination required at workstations, it may also reduce the need for artificial lighting during the day. The benefit comes from making better use of the roof to support the comfort of building users.

Multiwall polycarbonate solutions combine light transmission with low weight and insulation provided by their structure. Thermal properties are selected for the building’s needs, while the rooflight profile must connect to the particular roof panels. This matters in a heated hall, where daylighting should support the function of the entire envelope. Suitable UV protection helps prepare the material for outdoor service. For the owner, it is the combination that matters: the light-transmitting area remains part of the roof, so its appearance, weight and performance must suit the planned building.

Daylighting from above leaves more solid wall area available for racks, services or equipment.

Polycarbonate’s low weight is helpful when designing a lightweight roof envelope.

An appropriately selected light-diffusing variant can provide gentler illumination of the space.

A profile compatible with the panel system helps achieve a consistent pattern across the roof.

Rooflights are used in workshops, warehouses, production halls and suitable agricultural buildings. In a warehouse they can illuminate the deep space between racks, while in a workshop they can improve the area above workstations. The position and size of roof glazing are selected to suit the interior’s function, achieving the intended result without an arbitrary division of the roof. Users gain access to natural light where large wall windows would be inconvenient or conflict with equipment. The rooflight becomes a way to organise floor space, with benefits beyond the roof’s appearance.

We match rooflights to roof panel profiles and the interior’s daylighting needs. SteelProfil offers competitive prices and numerous promotions, with selected materials supplied directly from stock. The wider range also includes first- and second-grade products. We help combine the purchase of daylighting with the other components of the planned hall envelope.