DuraVent DuraChimney II – Roof Flashing 8” Diameter

DuraVent DuraChimney II- Roof Flashing 8” Diameter Use to weather proof the penetration of the chimney pipe through the roof. Storm collar required. Select a roof flashing based on the pitch of the roof. For example, a 6/12 pitch has a vertical rise of 6” over a horizontal distance of 12”. Overview of DuraChimney II DuraChimney® II is an exceptional factory-built alternative to pre-fabricated masonry chimneys. DuraChimney® II is a unitized, lightweight design which eliminates the need for field assembly of pipe sections, allowing for faster installation. DuraChimney® II is designed to stay cool on the outside, to provide a hot draft on the inside and to provide a fire-safe design that protects both the chimney and the building. The double-wall, air-cooled design allows the chimney to expand both radially and lengthwise under high temperatures. DuraChimney® II is tested and listed for continuous operation at 1000°F flue gas temperatures, one hour at 1400°F and ten-minutes at 1700°F, in accordance with the UL 103 test standard.