Deks Dektite DEKTITE SQUARE BASE PIPE FLASHING BOOT: #6 RED High Temp Silicone Flexible Pipe Flashing Dektite (for OD pipe sizes 5ʺ - 9ʺ)~Roof Jack Pipe Boot~pipe flashing fastens w/roofing screws~By

Excellent product, was a bit worried about trying this, used it on my log burner through a metal roof, works fine didn’t melt, and sealed water tight. My log burner is single flue and tin roof, about 2meters from fire, put temperatures gauge at the top and read 250 degrees. So it’s fine thanks.