Pictures taken early in the morning. To get these images, you have to get out after Sunrise, but before the sun starts shining on that part of the roof. Usually these are on the north or west slopes of the roof.
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Another picture of hot air leaking through a wall and then the roof. How? Wood in an attic drys out, and knots shrink. Or the hole for an electric wire is not sealed.
Leakes Roof, Hot Air, Electric Wire, Frostings Pictures, Water Damaged, Recovery Options, Attic Drys, Air Leakes, Knots Shrink
http://www.mobilehomerepairtips.com/mobilehomewaterdamagerestorationoptions.php has some info on the signs of water damage in the home and recovery options.
Oops! The heat leaks out. This is heat, not warm air. The attic in this building has a fire sprinkler system in it. The attic must be heated to keep the water from freezing. The insulation is supposed to be installed at the roof deck. Gravity is not helpful here. The solution is not to use a Batt form of insulation. It is to use a closed cell 2 part commercial spray foam.
Roof Decks, Close Cell, Batts Form, Fire Sprinkler, Sprinkler System, Frostings Pictures, Heat Leakes, Sprays Foam, Commercials Sprays
The hot air from the home enters the wall and rises into the attic and keeps the frost from forming directly over the wall. Does your home have a pattern like this? Get a Home Energy Audit to develop a plan to fix it!