Vent-Roll is a modern ridge vent ensuring very good ventilation and protection of ridges and hips. It represents high diffusion abilities, which allows to drain water vapour accumulating directly under the roof surface to the outside. Vent-Roll also functions as an insulation: it effectively protects against water, snow and dust penetration under the roof covering.
Air permeability (at 200 kPA): 380 cm3/cm2/s.
Structure: Two strips of 0.14 mm thick corrugated copper, glued and sewn to a technical fabric together with threads resistant to environmental factors; butyl glue strips applied to the edges on the bottom side.
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