lin. 2. lineal feet of ridge vent needed • To determine the amount of undereave vent required, use the following formula: X = NFVA (Sq. DESCRIPTION: Cobra® Rigid Vent 3™ (with 3” ring shank nails), Cobra® Rigid Vent 3™ 9”(with 3” ring shank nails), ... over attic ridge vent for installation in shingle roof systems. For applications with hip and ridge intersections, to prevent potential weather or insect infiltration, terminate the Cobra ¨ ridge vent … Todetermine how many feet of Cobra Ridge Vent is needed, use the following formula: 1/2 x (Min. Exhaust Vent for Roof Ridge Balanced Ventilation Requirements Balanced ventilation requires an equal amount of intake ventilation and exhaust ventilation. 3. Black. GAF recommends, )* FL197-R2 1600 23/28389/395 190027/33457/466 2200 32/38541/536 2500 36/43609/607 2800 40/48676/677 GAF Ridge Cap Shingles, GAF Starter Strip Shingles, GAF Leak Barrier Products, GAF Roof Deck Protection Products, and Cobra Ventilation Products 5 Years No coverage No coverage * Definition of Lifetime: The word “Lifetime” means as long as you, the original owner(s), own the property where the shingles are installed. GAF - Cobra 3 Roof Ridge Exhaust Vent in Black - 18 sq. Cobra® Attic Ventilation Products are part of the GAF Lifetime Roofing System and are covered by up to a Lifetime ltd. For a uniform appearance, install Cobra ¨ 4" rigid vent over the entire length of the ridge, making sure that the vent extends past the slot opening by at least 6". The original Cobra® ridge vent, protecting over 2 million homes, comes on a mesh roll for fast and easy installation with no compli- ft.) of the undereave vent or intake vent system selected 4.2 Cobra® Rigid Vent 2 is a plastic, low-profile attic ridge vent for use in shingle roof systems. Plastic construction. - THD SKU# 986754 Cobra® Ridge Runner® offers the performance of a baffled rigid vent with the ease of installation typically found in a roll ridge vent. In. net-free area. in./lineal ft. of net free ventilating area. Cut-out. It features a shingle-over design to blend into the ridge line. The product measures 10½ wide supplied in 20 and 50 ft long rolls. GAF offers a full line of ridge vents for use in virtually any climate. With or without filter. * They’ve even earned the Good Housekeeping Seal! “The original Cobra® Ridge Vent—protects over 2 million homes!” Proudly Made In The U.S.A. Total Attic Recommended Minimum Intake ®SquareLength Of Cobra Ventilation (Net Free Footage Ridge Vent (Feet)* Area In Sq. NOTE: Unless used with Cobra® Hip Vent, for ridge vent to function properly, it should be the only exhaust vent for the vented attic space. Fresh air enters attic through intake vent at soffit or eave Allows heat and moisture to escape at the most effective location—the ridge However, if the ridge vent is being used in conjunction with a hip vent, the total exhaust NFVA should match the total intake NFVA for the vented attic space. 4.1 Cobra® Exhaust Vent is a low-profile attic ridge vent of mesh-construction for use in shingle roof systems. per. (3” ring shank corrosion x 48 in. Cobra® Rigid Vent 3™ Exhaust Vent for Roof Ridge 1. of exhaust ventilation at the ridge exceed the amount of soffit ventilation. ft. of NFVA needed) x 144/16.9 or 14.1 = Min. Cobra® Rigid Vent 3™ Exhaust Vent for Roof Ridge is a premium rigid-style vent with 3” (76 mm) ring shank nails that allows heat and moisture Cobra® Exhaust Vent), Cobra® products help ensure a fast, easy installation. In. They ventilate at the most effective location on the roof – the ridge. Warm, moist air escapes attic through Cobra® Rigid Vent 3™ Exhaust Vent for Roof Ridge (installed under ridge cap shingles) 2. in. Sq. Ridge Ventilation Ridge Vents The best overall value in attic ventilation, ridge vents combine a low installed cost with excep-tional aesthetics. Shop GAF Cobra Ridge Vent 3 13.7-in x 48-in Black Plastic Stick Roof Ridge Vent in the Roof Ridge Vents department at Lowe's.com. Cobra Rigid Vent 3™ Exhaust Vent has 18.0 sq. Warranty. 13-3/4 in. A roll ridge Vent, low-profile attic ridge Vent of mesh-construction for use in shingle systems... Plastic, low-profile attic ridge Vent shingle Roof systems Vent 3™ Exhaust Vent for in! 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