RIWEGA USB CLASSIC 185g

Vapor-permeable films RIWEGA USB CLASSIC 185g have been present on the European market for 20 years! It is the best quality/price ratio! Highly permeable membrane (Sd 0.02m) ideal for sealing the insulated surface of the roof. The most widespread foil in the selection of Riwega products for covering the roof. Good mechanical resistance and UV stability (up to 4 months) Use under photovoltaic panels: NO

Vapor permeable film RIWEGA USB CLASSIC 185g is a waterproof film with high water vapor permeability; the top and bottom layers are high-weight polypropylene non-woven fabric and protect the middle microporous polypropylene UV-10 PP Plus film. The three layers are interconnected and welded using a thermal welding process. The microporous UV-10 PP Plus film is UV-resistant and in combination with the top layer treated with the UV-stabilization process of the non-woven fabric (at least 5% of the total weight of the fabric) makes RIWEGA USB CLASSIC 185g a film that is highly UV-stable and thus can be exposed to sunlight for a long time, which gives the possibility of installing the roof covering later. In this case, the uncovered film can be exposed for 4 months. The high weight per surface unit (185 g/m²) makes it the basic film for securing the roof according to the applicable standards and represents an interesting combination between price and quality.

Material: PP.PP.PP
Film: UV 10 Plus
Weight (g/m²): 185 (± 10 g/m²)
Roll length (m): 50 m
Roll width (m): 1.5 m / 3.0
Layer of air equivalent to the passage of water vapor – Sd (m): 0.02 m
Thickness (mm): 0.89mm
Thermal conductivity (W/mK): 0.22 W/mK
Impact Rain Test: Passed
Temperature: -40°C / + 100°C

Vapor-permeable foils are used in ventilated roofs and facades and allow the passage of water vapor from thermal insulation. This reduces the possibility of moisture condensation. The water vapor permeability of the foil is important, which is indicated by the SD factor and should be as low as possible.