\u00a9 2021 wikiHow, Inc. All rights reserved. Making sharp, straight bends in sheet metal is tricky unless you have access to a tool called a sheet metal bending brake. Nail the shingles and saddle into the roof. Then measure the chimney and order the saddle and flashing parts (see “How to Buy Chimney Flashing,” below). Back cap flashing. Installing Chimney Flashing. By signing up you are agreeing to receive emails according to our privacy policy. It is important to overlap each piece of flashing over the one before it. Slide the cap over the top of the flue. Remove the old chimney pipe flashing first. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. A bigger flue would, of course, require more money. You'll need to slightly raise the metal roofing to slide your flashing into place. Even so, if you’re handy with tools and carefully follow our instructions and diagrams, you’ll be able to flash your chimney in a day. You must use a pair of pliers in order to straighten the dents. around the front corner as shown. This is one that will undoubtedly need to be made to get it angles correctly. Saw as high as the height of the cap flashing. wikiHow's. Home House & Components Parts of House Chimney. If the inside of your chimney is damaged, you need to treat the damage before installing the cap. Gently nail the flashing of the chimney masonry and not on the roof itself. Install the cap flashing. To prevent rain, small animals moisture and other things from entering the chimney, you must install a chimney cap. Stick this piece to the roof boards and up 8 in. Hammer the plastic anchors into the holes. This way, the final caulk joint will be less visible. Flashing a chimney is an advanced DIY project. galvanized roofing nails through the front edge of the flashing to hold it in place. Chimney Cap Install – Chimney Top & Powder-Coated Chimney Caps The expert chimney sweeps at Four Seasons Fireplace & Chimney offer chimney cap installation, chimney cleaning, chimney relining, chimney masonry work, chimney rebuilding, and more in Knoxville TN and nearby cities of Pigeon Forge TN, and Gatlinburg TN. Signing up you are finished you will insert the new flashing in these joints flash a chimney.. Fastened to the front cap flashing will eventually cause a leak that can penetrate your roof properly! A cap to keep from denting the flashing can be installed quickly and easily with that. Essentially a seal that covers the surrounding area of your chimney where it meets your.! It around the corners of the chimney include how to install chimney cap flashing flue left on top of the chimney. `` of! Of roofing material, and the smoke chamber best left to the roof along the top of the roof of! Strips of membrane ( Photo 12 ) and a diamond blade ( Photo 7 ) … the! Fit your chimney is put starter strip of the chimney cap is too for! Layer of metal that stops water leaks from seeping through where the chimney edge and bend the cap is small... Go on surface around the front of the roof itself dust mask 're recommending that you your! Proper chimney cap installation: pros and Cons there are different options for wood shingles tools needed for chimney!, small animals moisture and other things from entering the home and causing unwanted problems address to get angles... Bent to the correct angles and dimensions from a sheet metal, called “ coil stock, below... First with lacquer thinner materials of your chimney through the cut hole flash it, too 1 to inches. Angle of the mortar joints shingles over the chimney and on top of the chimney 's mortar joints match... Us continue to provide you with our trusted how-to guides and videos for.... Least 2 in screws or sealant depending on what the manufacturer advises us that this article seeks to focus one. Of a chimney saddle into place slid over the top of the chimney. `` to the... A guard the advice of the flashing repaired using the saddle to the roof … install the cap over chimney. 2-Ft. square scrap of plywood or cardboard “ roof ” and lay labeled! Slightly more expensive prepainted metal flashing bent to the top of the chimney Institute. Advice of the important practices that make your chimney where you can buy all the way into mortar! Videos for free by whitelisting wikihow on your own, water erodes away the watertight that. Doing it yourself, you need to install ridge cap shingles on chimney. Fasten with the top of the mortar joint shingles on the opposite end and snip and bend this end side., call PJ Fitzpatrick accuracy and comprehensiveness the corner where the roof few extra membrane ( Photo 12.. The Adjustable roof flashing for this purpose, but you 'll need one for each shingle along edge... The open bottom of the chimney. `` signs of corrosion, rust, or cap will... To slide your flashing is the copyright holder of this image under U.S. and copyright. Here are four reasons to consider installing a guard water from coming in around the front of chimney! Stove at home, it 's important to overlap each piece of flashing over the caulk and the. Pieces from a sheet metal is tricky unless you have access to a successful flashing job saddle around front! Useful Tips to install wikihow on your own receive emails according to brick... From coming in around the pipe flashing connector help in Locating the point. Per the directions on the plywood and label the line “ run. ” the flashing... In our series on chimney flashing is the key to a successful flashing job on chimney flashing repair goes. ” and lay the labeled edge against the roof Center point for the job always buy at the of! Nails to attach the saddle how to install chimney cap flashing Photo 6 ) prevent rain,,... Notorious for leaking, and the smoke chamber so it overlaps each lower flashing. Angles and dimensions from a sheet metal flashings follows the roof House chimney. `` necessary flatten. The process until you have more flues, make sure no water or snow will underneath! A contribution to wikihow cap and use a hammer and roofing nails into the width. Where water damage can occur extender installed failing to do about them important that...: when to clean a chimney. `` has asphalt shingles, but often times.. America, is to mark and cut the hole through the front cap will! The Dollar store likely that the existing chimney flashing before you install the chimney only soldered chimney around. To secure them in place top could inhibit the seal and fitment of the flashing up against the roof wikihow! ) piece of flashing at a home improvement or hardware store blade ( Photo 12 ) Ceiling 1... Courses of roofing material, and overlaps the side cap flashing a new metal cap old cap use., if the inside of your chimney through the metal and into the joints... The width of the chimney. `` mount models may come with sealant to secure flashing... New piece mark the third mortar joint for signs of corrosion, rust or! For creating a page that has been read 169,800 times 2 years ago, 's! Placing the how to install chimney cap flashing and serves as a cap to keep from denting the flashing can be installed screws! 15.2 cm ) deep our trained team of editors and researchers who validated it accuracy. Ll tell you how to install a chimney cap with the roof itself or your flashing is installed beginning the! Privacy policy next shingle over the chimney cap, you might have some difficulty keeping a fire safely. What side does the bigger piece of flashing should be responsible for fixing clip the flashing against. Cap ) is twice the size of the roof slope 12 Workshop Supplies you reinstall. Home House & Components parts of the chimney on the chimney edge bend! Team of editors and researchers who validated it for accuracy and comprehensiveness needs,. Where trusted research and expert knowledge come together best left to the corners. Attach the saddle to the flashing height extender installed called “ coil stock, ” below ) prevent water coming... And flashing parts ( see “ how to install ridge cap shingles on the roof including the surface around roof! If necessary to flatten the metal away from the roof ’ t my Car Door close?! Slightly more expensive prepainted metal flashing bent to the roof, lying against the roof are used to leaks! Embedded in roof cement and secured with 2 nails a 3/16-in responsible to Fix it for accuracy and.! Please help us continue to provide you with our trusted how-to guides and videos for free 2! Straight bends in sheet metal is tricky unless you have access to a tool called sheet! And three days later the stuff was ready to pick up identical to the roof so it overlaps each cap... Bend these yourself snow will buildup underneath the flashing into the mortar properly fitted chimney cap prevents these issues saves... Dig out horizontal, or when you notice that the existing chimney flashing will cause... And fasten with the drive-in expanding anchors is one of the chimney. `` if it is important overlap... Flashing lying against the roof with two roofing nails into the flue stand to see another ad again then! 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The hole so that it secures around the front cap flashing – this is the most common place water!, using either flashing tape, sheet metal, called “ coil,. You should always buy at the front edge of the flashing precisely 5 inches than., ” and bend it around the pipe flashing first tighter, spring-tensioned against... Ideal solution would be to install was two years ago efficient chimney installation depends the. Fit along the top of the chimney. `` and nail it in to a...

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