Installing a roof cricket.
Install a roof cricket.
Reinstall the roof panel under the cricket snapping its seams back in place.
Install a waterproof membrane over the cricket sides and edges fastened to the cricket with a construction stapler.
Sep flashing is an l shaped sheet metal are woven into the shingle courses and lapped up the side of the chimney.
Rubberized membrane that runs on the roof and up the sidewall of the chimney.
Put metal flashing along the sides of the cricket nailed in place to overlap seams with the roof.
Caulk the joints where the cricket meets the panel and the chimney as well as the screw heads.
Because chimneys are such a potential trouble spot consider installing a roof cricket as well as inspect them once every year or two.
Proper flashing around a chimney includes three layers.