HD ULV

Underlay Lap Vent

The Hambleside Danelaw underlay lap vent has a shallow and tapered design to fit between the overlaps in the roofing underlay below the tiles or slates to introduce ventilation openings.

It is retrofitted to reduce condensation in the roof space. Simple for anyone to fit from inside the loft by simply inserting between the overlaps of underlay.

Specification

Airflow:
2,280mm2 per vent
Made from:
PVC
Available in:
Black