Minimum Roof Pitch For Smart Vent

I will install grace over the entire dormer and shingle as usual.

Minimum roof pitch for smart vent.

Use the enclosed fabric at the open ends of smartvent to seal for weather. Internal baffles drainage system and weather filter provide 3 levels of weather protection integrated end plug on both ends of vent provide a finished appearance and weather protection each vent has 9 sq. Wood shingles require a minimum roof pitch of 3 12 or greater. The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.

Use of ridge or off ridge exhaust vents is required. Look at our fasciavent which has been designed more specifically for metal roofs and provides the intake ventilation for flat to 16 12 pitches. Use smartvent tapered end caps when terminating smartvent within the shingled area of the roof. Stop any roof deck 1 cuts about 12 from rake edges dormer walls or valley areas or at ends of the smartvent runs etc.

Smartvent should be installed on shingled roofs with a minimum 4 12 pitch. Has anyone ever installed a ridge vent on a low slope 2 12 roof. Mineral surfaced roll roofing requires a minimum roof pitch of 1 12 or greater. Slate and slate type shingles require a minimum roof pitch of 4 12 or greater.

The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run. Wood shakes require a minimum roof pitch of 3 12 or greater. Of net free area per linear foot minimum 3 12 roof pitch with no maximum louver openings are sized to minimize insect infiltration and. There is no maximum slope installation.

If you have any questions or comments on installation please call 1 800 622 4455 and ask for a roof ventilation technician to assist you. However you can only use this pitch with built up roofing or specialized synthetic roofing. Click here for an expanding list of smartvent dealers. Built up roofs require a minimum roof pitch of 1 4 12 or greater.

Smartvent allows cooler air to enter under the shingle through the 1 roof slit and out the ridge vent providing superior air flow and attic cooling. I am planning on building a dormer that will come off the ridge with a 2 12 roof. Smartvent can be modified to provide intake ventilation for new roofs or re roofs through the fascia board for low slope roof with less than a 4 12 pitch. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.