The rubber boot is trimmed to fit around the pipe and then secured to the roof with screws and sealant.
Flashing around chimney steel roof.
Chimney pipes on metal roofs must be flashed in order to create a watertight seal around the pipe and prevent leaks through the roof.
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.
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.
Install two layers of butyl tape sealant under perimeter of pan flashing.
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 cricket is sloped like a tent roof to deflect water around the chimney.
Rivet the pan flashing to the sidewall flashing.
Apply sealant to sidewall flashing where pan flashing tabs will overlap.