A pro roofing contractor shows how to install these crucial water-management details before the shingles go on. They both work, but do so by different means. 1Lifetime refers to the length of a warranty coverage provided and means as long as the original individual owner(s) of a single-family detached residence [or the eligible second owner(s)] owns the property where the qualifying GAF products are installed. Get an overview of the entire process before watching our how-to series on re-roofing an existing building. Exact figures will depend on the scope and difficulty of the job. ÷ 16.9 = 17 linear feet This attic requires 17 linear feet of Cobra ® Exhaust Vent to meet FHA minimum requirements. Keep in mind that prices may vary according to your location based on the material costs and competition for … While not all homes require ridge vent installation, you or your roofer may consider adding one during a reroofing project, particularly for an older home with gable vents. Learn More. 4. 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 The ridge cap used on this roof comes in 3-ft. shingles which are perforated to be broken into 12-in. or a couple of turbines on the back. 2:30. Helps remove excess heat and moisture to protect your roof system from premature deterioration 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. Darby Kyle . First-timers may find it difficult to decide between different types of vents, such as a ridge vents or attic fans. Available in both hand nail and nail gun versions, its shingle-over design helps it blend into the ridge line. Now they are ready for the ridge vent.The fiberous material allows hot air to escape the attic and prevents water and insects from getting in. Mark the location of Sign up for eletters today and get the latest how-to from Fine Homebuilding, plus special offers. Proper ridge cap. inches of NFA per linear feet) 288 sq. With the ridge complete, it’s time to trim the overhanging roof edges. Snap a chalk line along the center of the ridge peak. Read your product instructions for cutting … A complete resource that includes the best materials and the right techniques to build a sturdy, leak-free, attractive roof on any house. 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 loose connection allows the vents to shift in windy conditions, and eventually they will pull right off of the decking. A pro roofing contractor demonstrates how to keep a job site clean, remove worn-out roofing, and replace damaged board sheathing before installing a new roof. Complete replacement may be over $1,000 on some roofing types. Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. HomeSafe. Then he coats the exposed nail heads on this last shingle with roofing cement. Proper Water Heater Installation Tips - Avoid Attics at All … Help protect your roof system from premature deterioration by installing a properly balanced attic ventilation system consisting of Cobra® Rigid Vent 3™ at the ridge and adequate intake ventilation at or near the soffit areas of your roof. gweedo. Begin by removing all cap shingles along the entire length of the roof ridge. The next step is to cap the ridge. November 19, 2014, 8:54pm #12. ditto gtp1003, cobra is junk. 1:09. - RV-29 Doc Type: .pdf Safety Data Sheet (SDS) Cobra® and TruSlate® Plastic Vents MSDS 2203 Doc Type: … When installed as part of a properly balanced attic ventilation system, GAF Cobra® SnowCountry® Advanced is a rigid-style shingle-over exhaust vent installed at the roof ridge that helps exhaust excess heat and moisture from your … 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. After the ridge vent is nailed over the newly cut gap at the ridge line, a ridge cap shingle is bent over the vent and nailed on. ft. Part of the GAF Better roofing system. inches per linear foot (67,720 m2/lm) of net free ventilating area and its unique EasyTear™ Sizing feature allows you to hand-tear product in 3" (76 mm) increments — no knives necessary and less waste! However, improper installation leads to leaky vents. inches per lineal foot of net free ventilating area Hand nail installation with included 3" ring shank nails Lifetime coverage on shingles and accessories requires the use of any GAF Lifetime Shingle and any 3 qualifying GAF Accessories. If you are installing ridge vent panels, leave a 1/8 inch gap in between to allow for expansion. With proper installation and care, ridge vents should not leak. Hip roofs, dormers and T- or L-shaped roofs may require a specially designed ventilation system. Expect the installation of a ridge vent to run about $500 on average if you’re not touching the rest of the roof. Cut a 1-¾" (truss) or 3-¼” (ridge pole) slot along the apex of the roof by cutting 7/8" on each side of the ridge. It doesn’t work well in warmer climates. He stops the cut 6 inches short of the roof edge, as recommended by the ridge-vent manufacturer’s instructions. inches of NFA per lineal foot) 288 sq. sideways florida rain gets to the cap nails. When ridge vent installation is performed correctly, the vent increases the home’s energy efficiency and extends the life of the roof. roofing nails. 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. This particular roof has an unusual roof projection that frames an entrance to the backyard. It provides 18 sq. ®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. 0:26. Almost all roofing companies are very familiar with ridge vent installation. Is it okay to combine soffit-to-ridge roof ventilation with gable-end vents… Installing a ridge vent without touching the rest of the roof will cost about $400 to $500. A ridge vent installation project will either involve a metal ridge vent or shingle-over vents. Ridge vent installation is used to provide cooling along the entire roof deck. Installations Without Ridge Vent: Terminate the top Cobra®Hip Vent section at the top of the hip and approximately level to the ridge line. Installation is performed from end-to-end and has a low profile to keep the home aesthetically pleasing. in. 0:30. Follow these steps to remove cap shingles. Become a member and get unlimited site access, including the GAF Materials 2005 Cobra Ridge Vent. The next step is to cap the ridge. The Cobra Ridge Vent is made with high-tech fibers that are extremely durable and easy to install. They install it by tacking one end, rolling it out, and centering it on the ridge. The slot shall terminate 1 foot shorter at each end than the total length of ridge vent used. get yourself a good aluminum ridge vent. in./lin. However, the number of domains the page goes thru severely impacts the page responsiveness and reader/viewer experience. Then they nail it along the edge every 6 to 10 inches. Labor-intensive projects or complications, such as additional repairs or demolition, can raise the price. 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. Using a circular saw with a carbide-tip blade, one of the roofers plunges the saw into the ridge at the ends and then follows the chalk line. They seal the first one with a generous application of roof cement and nail it down. 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. 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