Preventing Roof Leaks from Pipe Jacks

WINDSOR — Most roof leaks can be avoided with basic preventative maintenance. One example of this is with pipe jacks, which are metal flanges placed over the plumbing ventilation pipes that protrude from the roof. To seal against moisture intrusion, pipe jacks are fitted with rubber collars. However, as sun exposure causes these collars to deteriorate over time, cracks can form in the rubber. When it rains, these cracks can allow water to penetrate the seal and get inside the home. The leaks usually occur in kitchens, bathrooms and laundry rooms—anywhere plumbing fixtures are located.

Pipe jack collars are inexpensive and easy to replace—it’s simply a matter of knowing when they need to be replaced. That’s why it’s a good idea to have a roofer or maintenance professional inspect your roof on a regular basis and make sure all pipe jack collars (along with other important waterproofing components) are in good repair.