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.
Gaf roof intake vent.
In no case should the amount of exhaust ventilation exceed the amount of intake ventilation.
Boosts the performance of existing soffit undereave vents.
Gaf starter strip cut slot 6 152 mm from top of exposure.
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Roofing products residential roofing products ventilation and attic vents intake soffit undereave vents master flow.
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.
Delivers intake ventilation on tough to vent homes.
Always have a balanced ventilation system.
Balanced ventilation requires an equal amount of intake ventilation and exhaust ventilation.
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.
For adding intake ventilation to homes with no soffits clogged intake vents or vented roof decks.
Consult local building codes for specific ventilation requirements in your area.
Available in all climates.
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.
Get the details here.
For example if your attic is 900 square feet you need a total of 3 square feet of ventilation.
Eliminates the need for expensive time consuming alterations at the soffits.
Tapered shingle over design blends seamlessly with the look of your roof.
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.