The AIR VENTS/VAPOUR EXTRACTORS IN PVC-P are particularly suitable for use with PVC-P waterproofing membranes.
This particular item has been studied right down to its smallest details in fact, the unit has optimal characteristics that help eliminate serious and typical problems that can appear on a waterproofed roof caused by an imperfect evacuation of vapours, imperfect ventilation or use of incorrect air vents/vapour extractors: swelling of the membrane, moistening of the insulating layer causing a subsequent reduction or loss of original properties.
The Air vents/vapour extractors are made from a flexible and UV stabilized PVC-P.