Steel Roof Flashing Around Chimney

Weather and oxidization are the most common culprits for flashing deterioration but it is possible that flashing can just simply come loose.

Steel roof flashing around chimney.

Install two layers of butyl tape sealant under perimeter of pan flashing. Snip and bend a piece of prebent 8 in. Apply a jelly bean size dollop of caulk at the corner where the chimney meets the roof. Metal roof stove pipe flashing flashing is a method of weatherproofing the base of a 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. Apply sealant to sidewall flashing where pan flashing tabs will overlap. Embed the corner step flashing in the caulk and nail it to the roof with two roofing nails. Square step flashing to fit 1 1 2 in.

Flashing is often made of metal which is the norm on a metal roof. 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. Flashing is installed to surround roof features such as vents chimneys and skylights. Pan flashing should extend at least 12 inches up the roof plane.

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. The rubber boot is trimmed to fit around the pipe and then secured to the roof with screws and sealant. It s typically made of thin pieces of impenetrable material which inhibits water leaking around the chimney preserving the building from moisture and mold issues. Chimney pipes on metal roofs must be flashed in order to create a watertight seal around the pipe and prevent leaks through the roof.

Base flashing has several components. Around the front corner as shown. Rivet the pan flashing to the sidewall flashing.