Each cap gets 2 nails per side. Roof ridge vents (and other forms of roofing ventilation) work better when homes are in colder climates. Helps remove excess heat and moisture to protect your roof system from premature deterioration The ends should be capped or sealed. 4. A ridge vent installation project will either involve a metal ridge vent or shingle-over vents. 0:30. squares. (NOTE:  Always have a balanced ventilation system. 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 … Find the right roofing shingle style for you and your home. Watch as these roofers lay out materials, set a starter course, and cut and nail down flashing and shingles. Get an overview of the entire process before watching our how-to series on re-roofing an existing building. For information, request a copy of Air Vent's Principles of Attic Ventilation.See Contact Us. Darby Kyle . 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. inches of NFA per lineal foot) 288 sq. (183.53 kB) Q. I'm reroofing an older ranch house that has continuous soffit vent panels and gable-end attic vents but no ridge vents. exposure, but you should consult your manufacturer’s instructions for your shingle type. They both work, but do so by different means. © 2021 The Taunton Press, Inc. All rights reserved. Always install ridge vents from end to end across the entire ridge for best appearance and to provide maximum ventilation area. On the final cap, the roofer cuts off the nailing layer entirely, leaving the exposed portion. ®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. He stops the cut 6 inches short of the roof edge, as recommended by the ridge-vent manufacturer’s instructions. 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. Once that is shingled, this roof is done. Step 2. Become a member and get unlimited site access, including the When ridge vent installation is performed correctly, the vent increases the home’s energy efficiency and extends the life of the roof. ft. Part of the GAF Better roofing system. 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. Follow these steps to remove cap shingles. Eval. Exhaust … 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. ridge. See GAF Roofing System Limited Warranty for complete coverage and restrictions. 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. According to the company, the Exhaust vent is made using of 100% recycled fiber. 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. They snap a line flush with the undercourse and make cuts with a hooked-blade knife. GAF Materials 2005 Cobra Ridge Vent. Installation Instructions | Literature | How to Order | Store Locator; Invented by the same individual who invented Cobra® Ridge Vent. 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. For a uniform appearance, install Cobra®4' (1.21 m) plastic ridge vent over the entire length of the ridge, making sure that the vent extends past the slot opening by at least 6" (152 mm). Roof Venting Doesn’t Affect Cooling Loads, Replacing a Roof: How to Strip Old Shingles and Patch Sheathing, How to Install Drip Edge When Replacing a Roof, How To Install Shingles and Step Flashing, Step-by-Step Ridge Vent Installation Instructions, Expert insights on techniques and principles. 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 Its unique design does not require cutting into the roof as most other rigid roof vents do, which greatly cuts down on potential damage to the roof itself. Sign up for eletters today and get the latest how-to from Fine Homebuilding, plus special offers. roofing nails. Then they nail it along the edge every 6 to 10 inches. A pro roofing contractor shows how to install these crucial water-management details before the shingles go on. The general rule of thumb is that the colder the climate, the … Available in both hand nail and nail gun versions, its shingle-over design helps it blend into the ridge line. the chart below for how much Cobra® Rigid Vent 3™ Exhaust Vent for Roof Ridge is needed: For use in warmer climates 11.5" width - For 12" width ridge cap shingles 9" width - For 10" width ridge cap shingles 18 sq. Expect the installation of a ridge vent to run about $500 on average if you’re not touching the rest of the roof. 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. Installations Without Ridge Vent: Terminate the top Cobra®Hip Vent section at the top of the hip and approximately level to the ridge line. For applications with hip and ridge intersections, to prevent potential weather or insect infiltration, terminate the Cobra ® plastic ridge vent It provides 18 sq. These particular caps have an 8-in. If you’re doing the job yourself, expect to spend less than $150 for material, but ridge vent installation by a roofer will add about $400 to $500 to your roofing project. 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. A premium rigid-style vent with 3” (76 mm) ring shank nails that helps exhaust heat and moisture from your attic (Available in warmer climates). November 19, 2014, 8:54pm #12. ditto gtp1003, cobra is junk. Less than an inch in height, and molded from high-impact copolymer , it’s slim profile blends for visual appeal while permitting shingle capping over the ridge for a uniform, finished roof … Installation: Place, center and conform the end of a piece of ridge vent at each end of slots. 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. Labor-intensive projects or complications, such as additional repairs or demolition, can raise the price. 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 Complete replacement may be over $1,000 on some roofing types. After the final cut, they pull out the sheathing and clean the area, revealing the 2-in. It provides 18 sq. 0:26. HomeSafe. Some of the arguments in favor of ridge vents include: passive ventilation (it won’t add to your energy bill), reliability (because it doesn’t need electricity to function), ease of installation, and relatively low upfront cost. Step 3. Rating The Choices In Exhaust Ventilation Cobra ® Rigid Vent 3™ Exhaust Vent for Roof Ridge allows heat and moisture to escape at the ridge. However, the number of domains the page goes thru severely impacts the page responsiveness and reader/viewer experience. 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. The ridge cap used on this roof comes in 3-ft. shingles which are perforated to be broken into 12-in. In some cases, installers will use the wrong nails or shorter nails to secure the vents to the structure. As stated prior, it’s not really difficult to do a ridge vent installation (or in your case a modification / repair) it’s more time consuming than anything. The loose connection allows the vents to shift in windy conditions, and eventually they will pull right off of the decking. At the end of the ridge, they remove the top layer from the second-to-last cap and nail it in place. 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