Winter is coming: It’s time to seal roof penetrations

By Jenny Yu.  

Ensuring vent pipes are fully sealed and safeguard jobs this winter season.  

As temperatures drop and the possibility of the first rain or snowfall looms, roofing contractors must ensure their clients’ roof systems are fully sealed and ready for winter challenges. Proper roof maintenance is essential to preventing leaks and mitigating damage once snow, ice and cold weather arrive. Regular fall evaluations should include checking gutters and downspouts, inspecting for damaged or missing shingles, ensuring attic ventilation and clearing debris from the roof surface because clogged drainage and trapped moisture often lead to winter problems. 

One of the most vulnerable spots on any roof is the pipe vent penetration. That’s where the right product can make a big difference. The Wil‑Mar pipe collar has been the trusted go-to for roofing contractors since 1990. This EPDM-rubber collar is available in six common sizes — ¾″, 1″, 1½″, 2″, 3″ and 4″ — and provides a waterproof counter-flashing that slides down over the vent pipe rather than relying on roof sealant or tape. By clamping to the pipe itself, it removes the weak link of adhesive or surface-mounted seals, offering a long-lasting barrier against ice, snow melt and wind-driven rain. 

For roofing contractors gearing up for winter, now is the time to stock up on Wil-Mar pipe collars. A full inventory ensures you’re ready to handle retrofit work, new vent installations and seasonal maintenance projects.  

Seal roofs properly this fall and winter. Equip your crews with Wil-Mar pipe collars today and offer clients the peace of mind their roof is locked down for winter. 

Learn more about how Wil-Mar products like the pipe collar can help make your crew winter-ready.