These pipe boots are made for venting.

Since the weather is heating up, this month is all about vents! Vents allow your plumbing system to “breathe” so to speak and let gases, fumes, and odors escape in order to maintain proper pressure in your drain lines and as a part of keeping your home or business sanitary. The most obvious vent pipe is the one that emerges from your roof which is typically called a main stack. The most common issue seen with a main stack is the “pipe boot” that attaches it to your roof cracks or degrades and creates a leak in your roof. Thankfully today’s pipe boots are made of better materials and last longer.