10,000mm²/m airflow – exceeds cold and warm roof building regulation requirements Weather protection – triple-baffle design blocks wind-driven rain and snow Debris filter – stops insects, birds, and wind-blown leaves from nesting or clogging vents Low-profile design – discreet added-pitch design with low-profile hip units Crush-resistant – structural ribs withstand heavy impact and installation pressure Pitch versatile – suitable for 14°–45° roofs with integrated end caps Self-aligning – interlocking sections and pre-marked guides ensure straight, watertight runs Thermal flexibility – ship-lap joints allow thermal expansion and contraction without cracking, Manufacturer: Truly PVC Limited