), Allows heat and moisture to escape at the most effective location — the ridge, Available in two widths to work with 12” or 10” ridge cap shingles, Allows for hand-tearing the product in 3" (76 mm) increments — no knives necessary and less waste. Step 1. When installed as part of a properly balanced attic ventilation system, GAF Cobra® Exhaust Vent is a shingle-over exhaust vent installed at the roof ridge that helps exhaust excess heat and moisture from your attic. A complete resource that includes the best materials and the right techniques to build a sturdy, leak-free, attractive roof on any house. Proper Water Heater Installation Tips - Avoid Attics at All … According to the company, the Exhaust vent is made using of 100% recycled fiber. Step 5 Calculate number of feet of Cobra®Exhaust Vent (Hand Nail) How: Divide the square inches of NFA needed at the ridge by the NFA of the Cobra®Exhaust Vent (Cobra®Exhaust Vent is 16.9 sq. When ridge vent installation is performed correctly, the vent increases the home’s energy efficiency and extends the life of the roof. With the ridge complete, it’s time to trim the overhanging roof edges. 0:26. At the end of the ridge, they remove the top layer from the second-to-last cap and nail it in place. gweedo. Darby Kyle . In no case should the amount of exhaust ventilation at the ridge exceed the amount of soffit ventilation. Exact figures will depend on the scope and difficulty of the job. For other owners/structures, Lifetime coverage is not applicable. Designed with external baffles which maximize airflow across the underside of roof sheathing, the CertainTeed® Ridge Vent works year-round to efficiently and effectively ventilate an attic space. The next step is to cap the ridge. It provides 18 sq. - RV-29 Doc Type: .pdf Safety Data Sheet (SDS) Cobra® and TruSlate® Plastic Vents MSDS 2203 Doc Type: … squares. After the hole is cut, the flexible ridge vent is bent and nailed over the top. Visit gaf.com/LRS for qualifying GAF products. Rpt. In addition, the ads to content mix is painful. Always install ridge vents from end to end across the entire ridge for best appearance and to provide maximum ventilation area. inches of NFA per lineal foot) 288 sq. Reminds me of the also metrics domains happy and sloww Popular Mechanics site. squares. Mark the location of 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. They snap a line flush with the undercourse and make cuts with a hooked-blade knife. 1:09. The original Cobra Ridge Vent, protecting millions of homes, comes on a mesh roll for fast and easy installation with no complicated fitting, wrapping, nail gun adapters, connectors, or end-plugs needed. Hip roofs, dormers and T- or L-shaped roofs may require a specially designed ventilation system. Then he coats the exposed nail heads on this last shingle with roofing cement. ®How: Divide the square inches of NFA needed at the ridge by the NFA of the Cobra Exhaust Vent ®(Cobra Exhaust Vent is 16.9 sq. Get an overview of the entire process before watching our how-to series on re-roofing an existing building. Installation: Place, center and conform the end of a piece of ridge vent at each end of slots. They install it by tacking one end, rolling it out, and centering it on the ridge. When ridge vent installation is performed correctly, the vent increases the home’s energy efficiency and extends the life of the roof. Cobra's patented flexible ribs allow the ventilation system to be completely adaptable and customized to any building or attic. Installing either a ridge vent or an attic fan can be a good way of getting adequate ventilation in your home. November 19, 2014, 8:54pm #12. ditto gtp1003, cobra is junk. The ridge cap used on this roof comes in 3-ft. shingles which are perforated to be broken into 12-in. Then, they lap the peel-and-stick, existing felt, and new housewrap over the step and kick-out flashings so that any water hitting the wall is directed onto the roof instead of behind the flashing. If you really want a high quality vent that will serve you for years to come, the GAF Cobra Exhaust Vent is one of the best options. Cobra® Exhaust Vent for Roof Ridge - Miami-Dade Approval 14-1224.18 Doc Type: .pdf Master Flow® Power Attic Vents ERV4, ERV5 and ERV6 Roof Mount and Master Flow® Attic Exhaust Vent High-Capacity Dome Vent HCD144 - Miami-Dade Approval 16-0209.11 Doc Type: .pdf But you should consult your manufacturer ’ s energy efficiency and extends the life of the ridge line exposed.! 2005 Cobra ridge vent roof on any house is stripped sloww popular Mechanics site and save up 52! 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