An entire chimney flashing consists of:
Bottom Pan Metal: Usually a 5 x 8 sheet of metal embedded into the chimney and helps water run off from the step flashings.
Top Pan Metal: usually a 5 x 12 sheet of metal embedded into the chimney.
Step Flashings: there should be one step flashing per row of roofing.
Counter Flashing: these fold over the step flashings and are embedded into the chimney.
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