Pipe collars: The silent protector against roof leaks

By Jesse Sanchez.

These often-ignored roof components do more than you think — and Wil-Mar has the proof.

In the complex world of roofing, it’s sometimes the smallest components that do the heaviest lifting. Pipe collars, while rarely the subject of headlines, are among the first lines of defense against roof leaks — a detail that can often be overlooked. But ignore them and you may be rolling the dice on long-term roof integrity.

A pipe collar seals the vulnerable area where vent pipes protrude through a roof, creating a crucial moisture barrier. Without it, rain and debris can enter directly through the gap, leading to rot, mold and expensive water damage. “Pipe collars are one of the most important accessories on your roof, because they are direct entry points for water when they rot,” Wil-Mar Products states. “If they are not inspected regularly the cost of water damage repair far exceeds the cost of fixing them.”

Wil-Mar Products, Inc., a California-based company with over 25 years in the roofing industry, has made it their mission to solve the longstanding issues with conventional sealing methods. Their patented EPDM rubber pipe collar, originally invented by contractor Bill Merrin, eliminates the need for unreliable materials like mastic or tape, which tend to deteriorate under heat and sun exposure. The collar slides down over any type of pipe — whether PVC, copper or galvanized — and stays in place independently of the flashing, reducing the risk of leaks caused by pipe movement.

The product’s design isn’t just innovative — it’s practical. “That is what we thought would happen with these, but they performed so well that they ended up being the permanent repair on the first visit,” said Tom Truelson of 1st Choice Roofing, after testing Wil-Mar’s collars on active job sites.

More than performance, contractors and suppliers alike point to Wil-Mar’s reliability and customer service as key differentiators. “They always get back to us right away and are very responsive,” said Heather Malone of ABC Supply. The pipe collars meet ASTM D-2000 standards, ensuring high resistance to temperature extremes, oil, ozone and UV light — and they come in multiple sizes to fit a range of applications.

Wil-Mar’s commitment to quality has made their pipe collars a go-to solution for roofers looking for a long-lasting, no-leak seal. And with a no-leak guarantee and a straightforward installation process, the product simplifies what used to be one of the more tedious — and risky — parts of a roof build or repair.

Learn more about how Wil-Mar’s innovative pipe collars are redefining roof protection and saving contractors time, money and callbacks!