Water Leaking From Underside Of Vented Roof

A roof leak at the edge of a dormer can allow a lot of water to enter your home.

Water leaking from underside of vented roof.

Debris like leaves pine needles or twigs can trap water against the roof. Check plumbing vent boots and roof vents if water is entering from that area to cause the leaking roof. The water can seep into the roof. If your ceiling has a plastic vapor barrier between the drywall and the attic insulation push the insulation aside and look for flow stains on the plastic.

Let s examine a few common causes of leaks so you can keep an eye on your roof. Sometimes the water shows up at a ceiling spot distant from the leak. The rubber gasket that surrounds the vent pipe could be rotted. Your roof is actually the tar paper and ice and water shield that is underneath underneath the shingles.

Sun exposure and heat especially during the summer can cause the rubber boot to crack creating the space for water to leak in. When the roof vent is leaking the actual cause must be identified first. Dormer leaks can be caused from a number of issues. A roof that leaks around a vent pipe is a common cause of small water stains on a ceiling or water leaking into a home.

Rotten or missing trim or siding can allow water to leak behind flashing and into your roof. Often the rubber boot on the vent will be worn or torn the metal plastic base will have a crack or broken seam or a few nails will be loose or missing. If any of these issues are present water will be able to enter your roof along the pipe. The leaking may first be seen in the attic but if you don t catch it right away you may see water coming into the house dripping on the floor.

A roofer would be a sure bet to repair replace whatever it is. A plumbing vent pipe is a common culprit for leaks. Make sure you keep the roof clear so water will spill over it fast. Edit answer for another 24 minute sounds like the leak is where the exhaust pipe penatrates the roof.

Multiple layers of shingles are bad. It means that they didn t replace the actual stuff that keeps the water out of your house they just replaced the stuff that you see that goes over top. A handyman could likely replace the cap be sure to ask before having one come out. Worn out flashing or missing sealant can also cause roof leaks around dormers.

Look for cracks in the base of flexible rubber flashing or broken seams in metal varieties of vent pipe flashing. Some roof leaks are tough to locate. Could b the cap or at the flashing at the roof. Roof vents are made from different materials.