Minimum Roof Pitch For Smart Vent

Smartvent should be installed on shingled roofs with a minimum 4 12 pitch.

Minimum roof pitch for smart vent.

I am planning on building a dormer that will come off the ridge with a 2 12 roof. Asphalt shingles continue to be the most widely installed roof covering option in north america. There is no maximum slope installation. Most houses with ridge vents do not have the proper soffit ventilation required because attic insulation blocks the soffit vents.

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. 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. Use the enclosed fabric at the open ends of smartvent to seal for weather. Has anyone ever installed a ridge vent on a low slope 2 12 roof.

Built up roofs require a minimum roof pitch of 1 4 12 or greater. Use smartvent tapered end caps when terminating smartvent within the shingled area of the roof. Mineral surfaced roll roofing requires a minimum roof pitch of 1 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.

The code here is massachusetts allows shingles on roofs with pitches of 2 12 or steeper so i m good there. I will install grace over the entire dormer and shingle as usual. Stop any roof deck 1 cuts about 12 from rake edges dormer walls or valley areas or at ends of the smartvent runs etc. 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. 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. Wood shakes 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.

They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. Slate and slate type shingles require a minimum roof pitch of 4 12 or greater. However you can only use this pitch with built up roofing or specialized synthetic roofing. Click here for an expanding list of smartvent dealers.