A pipe stack penetrates the roof construction with a sleeve installed as required. Sheet lead flashing mops into the roofing material and turns down into the stack, extending at least twelve inches minimum above the roof surface. An increaser is installed on the piping below the roof construction when required.
SHEET LEAD FLASHING MOP IN WITH ROOFING MATERIAL TURN LEAD DOWN INTO STACK ROOFING ROOF CONSTRUCTION SLEEVE ROOF CONSTRUCTION AS REQUIRED INCREASER WHEN REQ'D 12"MIN 12"MIN
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