The Kozy Kollar is a heavy-duty rubber vent that allows a PVC pipe to go up through it. It will work on a 0 to 12-pitch roof, and it takes about an hour to install from start to finish.

Roof vent flashing is fairly easy to install as long as you are comfortable with heights, and the idea of getting on your roof to finish the installation doesn't scare you too much.

Quick video showcasing how we install a plumbing pipe roof boot flashing on a ribbed metal roof. Butyl Tape is a great metal roof boot sealant and Sashco Lexel Is your belt and suspenders.

Flashing is a good way of preventing water from entering a dwelling at the point where the roof meets the walls. To begin the installation, fold a five-by-seven piece of aluminum flashing ...

Here are five common installations, done right. Step flashing. This seals seams between a shingled roof and a vertical wall; for example, along the edge of a second-story dormer.