Do you have photos of were you think the leak is coming from? Depending on the ridge vent they should be butted together.
Replies 10Go to your Shingle Manufactures web site and print out there brochure on Ice Dams it will explaine how they are formed and how to prevent it from happening. here is CertainTeeds...
Replies 11Call Certainteed Technical Services 1-800-345-1145
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