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HOW TO DETERMINE WHETHER YOU NEED BETTER ATTIC VENTILATION

posted Jan 7, 2016, 7:46 AM by Christopher Kidd   [ updated Feb 5, 2016, 9:12 AM ]

Some tips from our friends at the Family Handyman. 

In the summer, good attic ventilation reduces heat buildup. That cuts cooling costs and prolongs shingle life. In the winter, warm, moist air seeps into the attic from the living space below. Good ventilation allows the heat and moisture to escape. That keeps your attic dry and reduces ice dams. Here are four signs of an unventilated or under ventilated attic: 

·                 Look at your eaves and roof. If you don’t see any vents on the roof or in the eaves, you need to add some. Your roof vents may not look anything like the ones shown in this article. Your roof may have a ridge vent, which is a low profile, continuous vent running along the peak of the roof. Or it may have gable vents, which are louvered openings at the top of gables.

·                 Touch your ceiling on a warm, sunny day. A hot ceiling tells you that the attic is acting like a solar oven, raising your cooling bills and cooking the shingles.

·                 Thick ridges of ice on your eaves in winter are a sign of poor attic ventilation. Warm air that escapes rooms below gets trapped in the attic. Snow melts and the water refreezes on the cold eaves, creating ice dams.

·                 Warm air that escapes living space also carries moisture that will condense on rafters or roof sheathing. Grab a flashlight and inspect your attic during the winter. If you see dampness or frost, you need better ventilation. 

For the full article: http://www.familyhandyman.com/attic/how-to-improve-attic-ventilation/view-all

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