Steel Roof Flashing Around Chimney

A continuous sheet metal apron across the chimney s downslope face l shaped step flashing running up both sides and when the chimney sits below the roof ridge a cricket or saddle running across the upslope face.

Steel roof flashing around chimney.

Roof flashing is a thin material usually galvanized steel that professional roofers use to direct water away from critical areas of the roof wherever the roof plane meets a vertical surface like a wall or a dormer. Pan flashing should extend at least 12 inches up the roof plane. Base flashing has several components. Around the front corner as shown.

Embed the corner step flashing in the caulk and nail it to the roof with two roofing nails. Rivet the pan flashing to the sidewall flashing. The material is usually aluminum or galvanized steel and depending on the type of roof you have is most likely in the valleys around the chimney and even around dormer windows or skylights. Metal roof stove pipe flashing flashing is a method of weatherproofing the base of a chimney.

Cut and fold pan flashing to fold up the back of the chimney and over the sidewall trim. Install two layers of butyl tape sealant under perimeter of pan flashing. Chimney pipes on metal roofs must be flashed in order to create a watertight seal around the pipe and prevent leaks through the roof. The rubber boot is trimmed to fit around the pipe and then secured to the roof with screws and sealant.

Apply a jelly bean size dollop of caulk at the corner where the chimney meets the roof. The flashing can be installed quickly and easily with kits that use rubber pipe boots. Apply sealant to sidewall flashing where pan flashing tabs will overlap. Flashing is often made of metal which is the norm on a metal roof.

Snip and bend a piece of prebent 8 in. Weather and oxidization are the most common culprits for flashing deterioration but it is possible that flashing can just simply come loose. A cricket is sloped like a tent roof to deflect water around the chimney.