Roofing membrane with high, even vapor permeability, thanks to which it keeps the roof dry, which translates into a reduction of energy consumption in buildings. Used as a layer of initial covering under roofing, on sloping roofs. Prevents rainfall from getting into the thermal insulation and roof structure, and also protects against condensation that forms under the base covers. It is characterized by high flexibility and water resistance. It is placed directly above the thermal insulation, without leaving a ventilation gap. Made by electrostatic spot lamination.

Technical data

• material: polypropylene (3 layers)
• Navy blue
• basis weight 150 g / m ² (+/- 20)
• Sd (r diffusion-equivalent air layer) 0.015 m (+ 0.02 / -0.01)
• breaking strength: along 320 N / 5 cm (+ 60 / -80); across 210 N / 5 cm (+ 60 / -80)
• elongation at break: along 70% (+/- 40); across 90% (+/- 40)
• tear strength on the nail: along 200 N (+/- 80); across 270 N (+/- 80)
• water resistance W1
• 1.6 m wide
• length 50 m
• flammability class E
• high resistance to UV radiation
• high mechanical strength