0:30. They snap a line flush with the undercourse and make cuts with a hooked-blade knife. A pro roofing contractor shows how to install these crucial water-management details before the shingles go on. 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. After the final cut, they pull out the sheathing and clean the area, revealing the 2-in. Mark the location of The next step is to cap the ridge. 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. Then he coats the exposed nail heads on this last shingle with roofing cement. Available in both hand nail and nail gun versions, its shingle-over design helps it blend into the ridge line. inches per lineal foot of net free ventilating area Hand nail installation with included 3" ring shank nails Darby Kyle. 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! squares. 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. These particular caps have an 8-in. Exact figures will depend on the scope and difficulty of the job. 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. The slot shall terminate 1 foot shorter at each end than the total length of ridge vent used. 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 squares. 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. 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. For information, request a copy of Air Vent's Principles of Attic Ventilation.See Contact Us. 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*. 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. This models is quite popular with home owners, which means that the vent does what it claims to do. Darby Kyle . It doesn’t work well in warmer climates. inches of NFA per lineal foot) 288 sq. But the question of whether to install a ridge vent or a power vent isn’t nearly as simple. Licensed roofing contractors with experience will charge $45 to $75 per hour for installation. It provides 18 sq. Cobra ® Rigid Vent 3™ Exhaust Vent for Roof Ridge allows heat and moisture to escape at the ridge. (NOTE:  Always have a balanced ventilation system. A ridge vent installation project will either involve a metal ridge vent or shingle-over vents. Follow these steps to remove cap shingles. Snap a chalk line along the center of the ridge peak. - RV-29 Doc Type: .pdf Safety Data Sheet (SDS) Cobra® and TruSlate® Plastic Vents MSDS 2203 Doc Type: … Exhaust … Instructions. When ridge vent installation is performed correctly, the vent increases the home’s energy efficiency and extends the life of the roof. Installing either a ridge vent or an attic fan can be a good way of getting adequate ventilation in your home. A premium, breathable, UV-stabilized polypropylene underlayment that helps protect your home against wind-driven rain infiltration and helps reduce trapped moisture in your roofing system that can cause mold, mildew, and expensive structural damage. The next step is to cap the ridge. inches of NFA per linear feet) 288 sq. Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. 2:30. Read your product instructions for cutting … Ridge caps should be oriented to face away from prevailing winds. I'm wondering if I should add a continuous ridge vent; it would be fairly easy to do while the roof is stripped. Available in both hand nail and nail gun versions, its shingle-over design helps it blend into the ridge line. 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. Complete replacement may be over $1,000 on some roofing types. 1:09. Ridge Vent Installation Cost. gweedo. Installing a ridge vent without touching the rest of the roof will cost about $400 to $500. November 19, 2014, 8:54pm #12. ditto gtp1003, cobra is junk. It provides 18 sq. Proper Water Heater Installation Tips - Avoid Attics at All … Installing Cobra Ridge Vents & Ridge Cap Shingles. Lifetime coverage on shingles requires the use of GAF Lifetime Shingles only. You naturally want to choose the very best one for your situation, though. 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. ft. Part of the GAF Better roofing system. Roof Louver – RT65. 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 … Hip roofs, dormers and T- or L-shaped roofs may require a specially designed ventilation system. 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. Login or Register to download the PDF version of this article. Step 3. Installation is performed from end-to-end and has a low profile to keep the home aesthetically pleasing. Roof ridge vents (and other forms of roofing ventilation) work better when homes are in colder climates. They both work, but do so by different means. 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. Installation: Place, center and conform the end of a piece of ridge vent at each end of slots. The Cobra Ridge Vent is made with high-tech fibers that are extremely durable and easy to install. Step 1. 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. On the final cap, the roofer cuts off the nailing layer entirely, leaving the exposed portion. Almost all roofing companies are very familiar with ridge vent installation. 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. 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 With the ridge complete, it’s time to trim the overhanging roof edges. Rating The Choices In Exhaust Ventilation Ridge vent installation is used to provide cooling along the entire roof deck. Helps remove excess heat and moisture to protect your roof system from premature deterioration Once that is shingled, this roof is done. They continue lapping subsequent shingles as they work their way across the ridge. Eval. in. ÷ 16.9 = 17 linear feet This attic requires 17 linear feet of Cobra ® Exhaust Vent to meet FHA minimum requirements. Lifetime coverage on shingles and accessories requires the use of any GAF Lifetime Shingle and any 3 qualifying GAF Accessories. 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). © 2021 The Taunton Press, Inc. All rights reserved. ridge. Start your subscription today and save up to 52%. Then they nail it along the edge every 6 to 10 inches. 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). 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. Installations Without Ridge Vent: Terminate the top Cobra®Hip Vent section at the top of the hip and approximately level to the ridge line. Sign up for eletters today and get the latest how-to from Fine Homebuilding, plus special offers. 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. See GAF Roofing System Limited Warranty for complete coverage and restrictions. Expect the installation of a ridge vent to run about $500 on average if you’re not touching the rest of the roof. First-timers may find it difficult to decide between different types of vents, such as a ridge vents or attic fans. 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. Typically, a homeowner pays a total of $300 to $400 in labor to complete the project. Is it okay to combine soffit-to-ridge roof ventilation with gable-end vents… The last phase of this project includes cutting through the sheathing at the ridge, fastening down vent material, and nailing down roof-cap shingles. They seal the first one with a generous application of roof cement and nail it down. The top vent sections from adjacent hips should be joined and mitered together tightly. After the hole is cut, the flexible ridge vent is bent and nailed over the top. get yourself a good aluminum ridge vent. Keep in mind that prices may vary according to your location based on the material costs and competition for … 3. If you are installing ridge vent panels, leave a 1/8 inch gap in between to allow for expansion. Get an overview of the entire process before watching our how-to series on re-roofing an existing building. Available in both hand nail and nail down flashing and shingles ÷ 16.9 = 17 linear )! First-Timers may find it difficult to decide between different types of vents, such as ridge! See the GAF shingle & Accessory Limited Warranty roofers lay out materials, set a starter,. 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