Oatey  Roof flashing 14038 3" Flex-Flash? 10" x 13.25" base, 100% flexible, foldable plastic base Self-sealing collar slides over pipe and requires no caulking Plastic base for pitch from 0-45 or up to 12/12 roof Rated 180F continuous heat and approved for Type B installations Do not use petroleum based products or paint on flashing collar or plastic base Not for hot-mopped or built-up roofs Slides over pipe for pitch to 45 degrees 100% completely flexible/foldable Do not use petroleum-based products on rubber bases or rubber collars Non-fading TPR base and collar No caulking needed