How to Troubleshoot Ridge Vent Leaks
Ridge vents rarely leak, but when they do, it can be a vexing problem. Troubleshooting a ridge vent leak involves first looking for signs of physical damage to the vent, or improper installation. If the vent is not damaged and is properly installed, the most likely culprit is wind-driven rain or snow. Condensation problems are often misdiagnosed as roof leaks; in particular, installing a ridge vent without corresponding soffit vents can lead to condensation inside the attic. Frost on the underside of the roof sheathing on a cold day is a sign of condensation and inadequate ventilation. Does this Spark an idea?
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Instructions
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Enter the attic on a bright, sunny day, using the stepladder if necessary. Without turning on the light, look up at the peak of the roof, and look for light leaks. It's normal to see a very small amount of diffused light coming through a ridge vent, but a bright beam usually indicates a leak.
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Inspect the ridge area from inside the attic, using the flashlight. Look for any signs of water, either damp areas or water stains. Keep in mind that water stains may be years old, and don't necessarily indicate a current leak.
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Climb onto the roof using the extension ladder, and look at the ridge vent. Look for physical damage to the vent or missing sections. Look for damage to the shingles that cover the vent. Most ridge vent systems use a foam rubber plug at the gable end; make sure this plug is in place.
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Tips & Warnings
The best way to spot a roof leak is to look from inside the attic during a rainstorm.
Use soft-soled tennis shoes for walking on a roof; they provide better traction than boots, and are less likely to damage the roof.
Always use extreme caution when working on a roof. If you aren't comfortable climbing on the roof, consult a professional to do the job for you.
References
- Photo Credit turbo vent image by Joann Cooper from Fotolia.com
