\u00a9 2021 wikiHow, Inc. All rights reserved. Step 4: Attach the Brackets Now that you have the spots marked, you will want to get your brackets and put them in place so they line up with the mark. X You’ll also need three hex-head or Phillips self-drilling 1-in. If I were transported to your home, here's how I'd construct your new chimney cap. A chimney cap is used to prevent rain, animals, and wind from entering the home and causing unwanted problems. How to Install a Chimney Liner. These chimney caps cover the whole chimney, and therefore one or multi flues. ... Take your new chimney cap out of any packaging or container and carefully place it over your chimney … The brick portion is about 2' x 4', and it has an 8" x 8" tile flue in the center. Chimney Caps Designed to Increase Draft. These Silicone Sealants form a durable but rubbery seal for high heat environments such as flues, fireplace inserts, glass fireplace doors or pellet stoves. Adjust the cap so that it is well aligned. Learn more... Chimney caps protect the inside of your chimney and the inside of your home from weather damage and outdoor pests. The Leg Kit is an optional accessory used with our Stainless Steel Bolt On Chimney Caps when the clay tile doesn't protrude from the top of a brick chimney. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. For example, if your ladder is 16 feet (4.9 m) tall, then you will set the bottom of the ladder 4 feet (1.2 m) away from your home. The chimney cap is the cement covering surrounding the flue liner that terminates the brick and prevents water infiltration into a masonry chimney. You can use this type of adhesive with any type of chimney cap. Get onto your roof with a ladder. Exterior construction adhesive may also be used to attach pot to chimney cap. Now mark off where you can to drill into the chimney to fasten the cap to the chimney. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Inside mount chimneys often come with sealant to secure them in place. A chimney cap's primary function is to attach to the flue pipe to allow the exhaust gasses to exit the chimney flue and prevent any rain from entering inside the flue. This cap will actually fit around these brick snugly and you attach them with screws. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. It is available in 10.5 oz. Clamp fastening chimney caps, which attach with a tight hose-clamp style band to a flue, need no hardware. Drill through the flange of the chimney cap and into the crown (cement part) of your chimney. If draft is not an issue for you, certain types of cowls can also be installed to prevent squirrels or birds from entering your chimney flue. For some reason, when brick chimneys get constructed, a chimney cap is seldom installed with it. Instead of screwing this cap into the crown, they actually “band around the top of the chimney.” Measure the outside dimensions of the top row of all four sides of the first row of brick . A “crown mounted” chimney cap is used when covering multiple flues with a single cap, or when no flue tile extends from the crown of the chimney to mount a cap. From the other end, pull the mesh taut over the liner. Then insert and tighten each Tapcon Masonry Fastener. Before learning how to cap a chimney, you must first decide if you’re comfortable working on your roof. Attach the “roof” of the cap to the cage. We use cookies to make wikiHow great. Top-mount chimney caps are mounted on the chimney crown, and can be installed with screws or sealant depending on what the manufacturer advises. cartridges that will fit most caulking guns. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Chimney caps can attach to four surfaces: inside the flue, outside of the flue, to the top of the chimney crown, or; to the outside, vertical edges of the chimney. It's actually quite common for a bird to fly into a chimney flue, whether it's by accident or they're looking for a place to nest. Re: attaching a chimney cap to a clay flue Caleb, Easy way to attach is to have the four prongs made so they slip inside the flue about a foot. Down draft (backflow), moisture, animals, are some of the problems. The brackets will attach to the cap and the chimney top, so be sure to mark both. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. The silicone sealants are also appropriate with all Vacu-Stack chimney caps. Inside mount chimneys often come with sealant to secure them in place. Place the cap back on the chimney to make sure the L-brackets sit flush with the top of the chimney. Make sure these are exact! Even from the ground an expert can see this stone chimney doesn’t have the right cap on it. Photo credit: Tim Carter. Put the ladder’s feet on steady, level ground and lean the ladder against your home. Chimney caps all seem to attach to a flue, how would I attach a cap without having a flue? x 24 in. There are 14 references cited in this article, which can be found at the bottom of the page. If you have a low screen rain cap, you would need to change out your rain cap. The Chimney Top Adhesive is perfect to help attach your chimney cap to your flue with a tight seal. Chimney caps must be slid over the chimney or into the flue. Some but not all chimney caps come with the mounting hardware included. 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