Selkirk Metalbestos 8T-AF6 Adjustable Roof Flashing, 8 Inch, Mill Flashing is used to seal the opening where the chimney penetrates the roof and to divert rain and snow down the roof and away from the chimney system A series of adjustable flashings are available depending on your roof pitch The 8T-AF6 steel stainless adjustable flashing features a 0.025 aluminum base 8-Inch 2/12-6/12 pitch Flashing is used to seal the opening where the chimney penetrates the roof and to divert rain and snow down the roof and away from the chimney system A series of adjustable flashings are available depending on your roof pitch Stainless 8-Inch 2/12-6/12 pitch