In no case should the amount of exhaust ventilation exceed the amount of intake ventilation.
Gaf roof intake vent.
Get the details here.
Gaf starter strip cut slot 6 152 mm from top of exposure.
Boosts the performance of existing soffit undereave vents.
For example if your attic is 900 square feet you need a total of 3 square feet of ventilation.
Fha federal housing administration recommends a minimum of at least 1 square foot of attic ventilation both intake and exhaust for every 300 square feet of attic space.
Master flow fresh air vents come with a built in screen to help prevent bird entry and can be used to vent a combustion system or anywhere fresh air intake is needed.
The first step is to check out this 60 second video and learn about the 300 1 rule the difference between intake and exhaust ventilation and why proper ventilation is so important to get right to help calculate your attic ventilation needs visit gaf ventilation calculator.
Helps to prevent premature roof deterioration and roof rot in your attic.
Always have a balanced ventilation system.
An easy to install shingle over vent that provides critical attic intake ventilation on properties with few or no soffits or clogged soffits.
Gaf recommends at a minimum providing 1 square foot of net free ventilation for every 300 square feet of attic floor space.
Gaf leak barrier cobra intakepro rooftop intake vent gaf shingles roof deck the 1 25 mm air slot must stop a minimum of 12 305 mm from rake gable edges side end walls and hip intersections and must stop a minimum of 24 610 mm from valley intersections.
Roofing products residential roofing products ventilation and attic vents intake soffit undereave vents master flow.
Tapered shingle over design blends seamlessly with the look of your roof.
Allows cool air to enter the attic space driving warm and moist air out of the attic s exhaust vents.
Available in all climates.
Federal housing authority recommends a minimum of at least 1 square foot of attic ventilation evenly split between intake and exhaust for every 300 square feet of attic floor space.
For adding intake ventilation to homes with no soffits clogged intake vents or vented roof decks.
Get automatic lifetime protection on your entire gaf roofing system when you install any gaf lifetime shingle and at least 3 qualifying gaf accessories you ll automatically get a lifetime limited warranty on your shingles and.
Delivers intake ventilation on tough to vent homes.