{"product_id":"millennium-grv4-galvanized-steel-gooseneck-roof-vent-with-damper-4-in-4-colors","title":"Millennium GRV4 Galvanized Steel Gooseneck Roof Vent with Damper, 4 in., 4 Colors","description":"\u003ch1\u003eMillennium GRV4 Galvanized Steel Gooseneck Roof Vent with Damper, 4 in., 4 Colors\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eThe Millennium GRV4 is a 4 in. galvanized steel gooseneck roof vent with damper, sold individually in Black, Brown, Mill or White. A birdscreen is standard, sealed seams keep out the elements, and the flanged base provides good vent-to-roof contact plus an easy caulking surface. It vents exhaust air through low-slope and flat roofs.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in damper:\u003c\/strong\u003e The integrated damper controls airflow through the vent.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion resistance:\u003c\/strong\u003e Galvanized steel construction provides excellent corrosion resistance and longevity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard birdscreen:\u003c\/strong\u003e A birdscreen is standard on all Millennium roof vents to keep out birds and debris.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSealed seams:\u003c\/strong\u003e Sealed seams help keep out the elements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlanged base:\u003c\/strong\u003e The flanged base provides good vent-to-roof contact and an easy caulking surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour color choices:\u003c\/strong\u003e Available in Black, Brown, Mill and White finishes.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch2\u003eSpecifications Table:\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMillennium Metals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSell unit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 vent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMillennium GRV4 with Damper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGalvanized steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable colors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack, Brown, Mill, White\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 in. vent size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish \/ texture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePainted or mill galvanized finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDamper, standard birdscreen, sealed seams, flanged base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePack quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 vent each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntended use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eExhaust venting through low-slope and flat roofs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch2\u003eCoverage \u0026amp; How Much You Need:\u003c\/h2\u003e\u003cp\u003eOne vent serves a single 4 in. exhaust duct penetration. Select vent quantity to match the number of exhaust points in your mechanical plan.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eFits standard 4 in. exhaust ducts and pairs with Millennium Metals roof flashing accessories. Order duct connections and roofing sealant separately.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: What is included?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e One 4 in. galvanized steel gooseneck roof vent with damper and standard birdscreen.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Which duct size fits?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The GRV4 is sized for a 4 in. exhaust duct.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How is it installed?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Set the flanged base on the roof surface, seal the flange with roofing caulk and connect the duct below per the manufacturer's instructions.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Will it rust?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Galvanized steel construction provides excellent corrosion resistance for long outdoor service.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What colors are available?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Black, Brown, Mill and White.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eGooseneck vents with dampers are a reliable choice for bath, kitchen and general exhaust terminations on flat roofs. The flanged base makes sealant application straightforward; lap the flange into the membrane or shingle course above. Choose Mill finish for a natural galvanized look or a painted color to blend with the roof.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eRoof vent installation involves work at height and hot sealants; use fall protection and follow local building codes.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOrder the Millennium GRV4 4 in. gooseneck roof vent with damper in your finish today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Millennium Metals","offers":[{"title":"Black","offer_id":67804744155350,"sku":"MILGRV4DBK","price":49.75,"currency_code":"USD","in_stock":false},{"title":"Brown","offer_id":67804744188118,"sku":"MILGRV4DBR","price":49.75,"currency_code":"USD","in_stock":false},{"title":"Mill","offer_id":67804744220886,"sku":"MILGRV4DMI","price":49.75,"currency_code":"USD","in_stock":false},{"title":"White","offer_id":67804744253654,"sku":"MILGRV4DWH","price":46.12,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0778\/5244\/2838\/files\/ProductImage_MILGRV10DBK.jpg?v=1793124983","url":"https:\/\/buildsupplyus.myshopify.com\/products\/millennium-grv4-galvanized-steel-gooseneck-roof-vent-with-damper-4-in-4-colors","provider":"Buildsupply","version":"1.0","type":"link"}