Selkirk 8 in. D Aluminum Adjustable Roof Flashing

Flashings are used to seal the opening where the chimney penetrates the roof and to divert rain and snow down from the roof and away from the chimney system. A series of adjustable flashings is available depending on your roof pitch. A flat and low pitch flashing is used to seal flat and low pitch roof (up to 12/12 pitch) openings. To determine your roof pitch, measure the number of inch from the end of a level ruler down to the roof.System temperature rating 1400 Fahrenheit degrees maximum 60 minutes,Check appliance installation instructions for details,Underwriters laboratories UL 103 HT certified,System requires 2 in. airspace to combustibles,System temperature rating 2100 degrees Fahrenheit maximum test 10 minutes