The Rock-Vent Pellet Pipe Roof Brace Kit is used when the pipe extends above the roof line more than 5 feet. The adjustable roof poles can extend from 5 to 9 feet in length and accommodate any roof pitch. Having more that 5 feet of the Pellet Pipe above the roof line can cause the pellet vent to be unstable, but the roof brace kit will ensure the pipe does not sway or buckle under extreme wind or snow loads. The Roof Brace Kit is constructed from 304L stainless steel for longevity.