Exhaust Vents

This CSA approved 50 square inch NFA, type B static roof exhaust vent is designed for use on attics, with installation near the peak of the roof. It is snowproof, effective at diverting water, and allows for airflow to keep attics cool and dry. Constructed with a heavy-duty ¼ inch thick polypropylene shell and 304 grade stainless steel filter, it provides a no-clog, 99.99% impenetrable barrier to snow, rain, and other elements. Suitable for use on sloped roofs, it can be used as a house or shed vent. For best results, it should be placed over a 7 ¼ inch by 7 ¼ inch square hole or 8 inch round hole. Note: The vent hood should be installed in one piece and is not designed to come apart from the base, please check local building codes before installation.

The original Type B, box style (50 sq inch flow) Roofers' EXHAUST vent is for use on sloped
roofs installed near the peak (install according to local building codes). Warm/moist attic air steadily moves out of the vent while blowing snow/rain is kept outside. CSA approved and third-party tested indicating that the Roofers’ Vent provides 99.99% blockage of airborne elements—even at 175kph/110mph windspeeds.