We enjoy water in Maine. Some kinds. But say you added a new roof a few years back before it leaked and now in the dead of winter, it's "raining" water inside the home. What's up with that? In Northern climates, you have to keep snow cleared for two reasons. Weight and to avoid cave in when that two feet gets rained on and is heavy, very heavy. Second is when heat loss from the home that is not ventilated properly causes ice back up along the eaves. That water in the form of ice travels up under the shingles. Makes a good case for metal roofing that sheds itself of snow.
But you cleared the roof, and still have leaks. That is caused from warm air in your living space escaping and hitting cold roof and no place to handle the moisture from the condensation. The really fun part is when the leak is on say a vaulted or cathedral ceiling and not always where to begin the fix. Often times the water travels down a 2 x 6 roof rafter and then comes in around the ceiling light or somewhere the insulation was not tacked securely or as tightly as it should have been with staples. Or not at all with an air escape gap if using fiberglass batts. Working on the problem in winter is not the optimum time but next spring adding soffit vents, ridge vents, exhaust fans, new roofing or more insulation to create a vapor barrier will be new items populated your job jar. Check out the moisture control handbook. What does insurance company say about the damage and who helps fix it? What is the moisture content or humidity in your home that is caused by teenage multiple showers, dryer vents, poor design or all the above? Maine insurance companies send out warning reminders to get the roof shoveled off without hurting the shingles. Did four porches and two roofs yesterday because rain is predicted Tuesday in Maine and a heavy wet sponge over my head needs addressing before that rain! Some times the leak is caused around the vent pipe for the plumbing or because someone attacked the eaves ice with an ax and caused damage. You should not have ice along the eaves unless a gutter is holding it in place from strong sun or lack of flashing or just plain no ventilation. Watch the video about inside leaks that cause damage and a smart dog that helps save the day.
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