The low profile cowl is geometrically the smallest available in the marketplace for the air capacity, projecting only 85mm above the roof surface.
Not recommended for high level use as its large air capacity and wide spacing would tend to leave stagnant air pockets between units (warned against in BS 5250).
Guaranteed actual net free ventilation area: 20,000mm².
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- Universal design suits virtually all single lap interlocking roof tiles.
- Fade-retardant UV-stable surface treatment proven in use over 25 years.
- Easy to install (instructions with pack).
- Compressible foam filler ensures driving and deluge rain resistance as shown by test.
- Underlay Protector maintains function of underlay when cut.
- Optional snap-fit Universal Extension Sleeve available to maintain air path into roof void.
- Low airflow resistance - can be used as a terminal for soil vent pipe (SVP) or most extract fans, with 100mm diameter Soil Universal Pipe Adaptor.
- Integral 4mm insect screen.
- Designed and developed under BS EN ISO 9001.
