A pro roofing contractor shows how to install these crucial water-management details before the shingles go on. ft. Part of the GAF Better roofing system. First-timers may find it difficult to decide between different types of vents, such as a ridge vents or attic fans. ridge. This models is quite popular with home owners, which means that the vent does what it claims to do. sideways florida rain gets to the cap nails. 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. HomeSafe. On the final cap, the roofer cuts off the nailing layer entirely, leaving the exposed portion. A complete resource that includes the best materials and the right techniques to build a sturdy, leak-free, attractive roof on any house. in./lin. 2:30. It doesn’t work well in warmer climates. When ridge vent installation is performed correctly, the vent increases the home’s energy efficiency and extends the life of the roof. Instructions. ÷ 16.9 = 17 lineal feet Follow these steps to remove cap shingles. GAF Materials 2005 Cobra Ridge Vent. Roofing Project Guide. Cobra® Rigid Vent 3™ Exhaust Vent for Roof Ridge allows heat and moisture to escape at the ridge. Expect the installation of a ridge vent to run about $500 on average if you’re not touching the rest of the roof. Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. This particular roof has an unusual roof projection that frames an entrance to the backyard. Lifetime coverage on shingles requires the use of GAF Lifetime Shingles only. inches of NFA per linear feet) 288 sq. wide air space on both sides of the ridge. They both work, but do so by different means. When ridge vent installation is performed correctly, the vent increases the home’s energy efficiency and extends the life of the roof. The next step is to cap the ridge. ®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. These particular caps have an 8-in. Coverage: 20 Linear Feet per Roll Cobra Exhaust vent allows heat & condensation to escape at the most effective location - the ridge 100% shingle-over design is virtually invisible when installed Helps to prevent wood rot and extend the life of your exterior paint 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. Ridge caps should be oriented to face away from prevailing winds. The ridge cap used on this roof comes in 3-ft. shingles which are perforated to be broken into 12-in. Materials cost between $100 to $125, and the rest of the price is for the labor. Find the right roofing shingle style for you and your home. 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. exposure, but you should consult your manufacturer’s instructions for your shingle type. Roofing Proper Shingle Installation. Exact figures will depend on the scope and difficulty of the job. Installing either a ridge vent or an attic fan can be a good way of getting adequate ventilation in your home. 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. Rating The Choices In Exhaust Ventilation They seal the first one with a generous application of roof cement and nail it down. Mesh Roll Ridge Vent: Width: 11.75" (299 mm) Length Per Roll: 20' (609.6 cm) Thickness.75" (19 mm) Net Free Areas : 16.9 sq. Hip roofs, dormers and T- or L-shaped roofs may require a specially designed ventilation system. Almost all roofing companies are very familiar with ridge vent installation. When you install any GAF Lifetime Shingle and at least 3 qualifying GAF accessories, you'll automatically get a Lifetime limited warranty on your shingles and all qualifying GAF accessories*. Narrator: Before the ridge vent installation begins, the crew installs pieces of peel-and-stick membrane to patch under the existing felt paper on the adjacent wall. Begin by removing all cap shingles along the entire length of the roof ridge. Always install ridge vents from end to end across the entire ridge for best appearance and to provide maximum ventilation area. The install process involves using a saw to cut a 2 inch wide gap along the entire peak of the roof. Cobra ® Rigid Vent 3™ Exhaust Vent for Roof Ridge allows heat and moisture to escape at the ridge. Ridge Vent Installation Cost. 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! In no case should the amount of exhaust ventilation at the ridge exceed the amount of soffit ventilation. Installation is performed from end-to-end and has a low profile to keep the home aesthetically pleasing. Dryer Vent Cleaning - Typical Dryer Vent Installation. 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. The ridge cap used on this roof comes in 3-ft. shingles which are perforated to be broken into 12-in. 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. Installing Cobra Ridge Vents & Ridge Cap Shingles. Helps remove excess heat and moisture to protect your roof system from premature deterioration For other owners/structures, Lifetime coverage is not applicable. If it’s a newer style of shingle-over vent, it may be one continuous piece of aluminum or vinyl, or made of a single fibrous material that’s rolled out over the ridge hole. 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. He stops the cut 6 inches short of the roof edge, as recommended by the ridge-vent manufacturer’s instructions. 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). At the end of the ridge, they remove the top layer from the second-to-last cap and nail it in place. 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 Once that is shingled, this roof is done. Login or Register to download the PDF version of this article. I'm wondering if I should add a continuous ridge vent; it would be fairly easy to do while the roof is stripped. Snap a chalk line along the center of the ridge peak. Labor-intensive projects or complications, such as additional repairs or demolition, can raise the price. gweedo. Find a GAF certified contractor near you. 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. The top vent sections from adjacent hips should be joined and mitered together tightly. Step 1. inches per lineal foot of net free ventilating area Hand nail installation with included 3" ring shank nails roofing nails. You naturally want to choose the very best one for your situation, though. To begin the ridge vent installation, they measure down 3 inches from the top of the ridge and snap a line to cut the opening for the ridge vent. A ridge vent installation project will either involve a metal ridge vent or shingle-over vents. Several ridge vent installation tips are given in this video. © 2021 The Taunton Press, Inc. All rights reserved. Rpt. With the ridge complete, it’s time to trim the overhanging roof edges. For applications with hip and ridge intersections, to prevent potential weather or insect infiltration, terminate the Cobra ® plastic ridge vent Become a member and get unlimited site access, including the It provides 18 sq. 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. Watch as these roofers lay out materials, set a starter course, and cut and nail down flashing and shingles. ÷ 16.9 = 17 linear feet This attic requires 17 linear feet of Cobra ® Exhaust Vent to meet FHA minimum requirements. If you are installing ridge vent panels, leave a 1/8 inch gap in between to allow for expansion. Gable vents rarely act as an effective ventilation system on their own, and ridge vent installation will improve energy efficiency. Extra-flexible hinge design allows installation on 3:12 to 16:12 sloped roofs ... Cobra® Ridge Vents - Rigid Vent 3, Rigid Vent 3 9", Snow Country, Snow Country™ Advanced, Snow Country™ Advanced 9", Ridge Runner® and TruSlate® Ridge Vent- Texas Dept. 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. Proper Water Heater Installation Tips - Avoid Attics at All … According to the company, the Exhaust vent is made using of 100% recycled fiber. 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. Is it okay to combine soffit-to-ridge roof ventilation with gable-end vents… Installation Instructions | Literature | How to Order | Store Locator; Invented by the same individual who invented Cobra® Ridge Vent. in. of Ins. Removing Cap Shingles. Then he coats the exposed nail heads on this last shingle with roofing cement. 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. inches per linear foot (67,720 m 2 /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! - RV-29 Doc Type: .pdf Safety Data Sheet (SDS) Cobra® and TruSlate® Plastic Vents MSDS 2203 Doc Type: … Ridge caps should be oriented to face away from prevailing winds. Start your subscription today and save up to 52%. get yourself a good aluminum ridge vent. See GAF Roofing System Limited Warranty for complete coverage and restrictions. That puts our first cap against the side of the house. 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. Visit gaf.com/LRS for qualifying GAF products. Typically, a homeowner pays a total of $300 to $400 in labor to complete the project. ), 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. They install it by tacking one end, rolling it out, and centering it on the ridge. They continue lapping subsequent shingles as they work their way across the ridge. or a couple of turbines on the back. (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. Roof ridge vents (and other forms of roofing ventilation) work better when homes are in colder climates. squares. Available in both hand nail and nail gun versions, its shingle-over design helps it blend into the ridge line. 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. 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). squares. November 19, 2014, 8:54pm #12. ditto gtp1003, cobra is junk. However, the number of domains the page goes thru severely impacts the page responsiveness and reader/viewer experience. Ridge vent installation is used to provide cooling along the entire roof deck. The ends should be capped or sealed. 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. (NOTE: Always have a balanced ventilation system. 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. Installing a ridge vent without touching the rest of the roof will cost about $400 to $500. 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 … Complete replacement may be over $1,000 on some roofing types. Available in both hand nail and nail gun versions, its shingle-over design helps it blend into the ridge line. 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. Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features. The next step is to cap the ridge. Sign up for eletters today and get the latest how-to from Fine Homebuilding, plus special offers. in. 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 In some cases, installers will use the wrong nails or shorter nails to secure the vents to the structure. With proper installation and care, ridge vents should not leak. The slot shall terminate 1 foot shorter at each end than the total length of ridge vent used. Cap and nail gun versions, its shingle-over design helps it blend into the ridge.... 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