Wind, weather, and flying debris can damage shingles . The ares along the valleys and ridges tend to take the most weather related abuse . Torn , loose or cracked shingles are common in the areas.
Buckled and cupped shingles are usually caused by moisture beneath the shingles. Loosened areas create an entry point for moisture and leave shingles vulnerable to wind damage.
A sagging ridge might be caused by the weight of too many roofing layers. It might also be the result of a more significant problem, such as a rotting ridge board or insufficient support for the rigid board.
Dirt and debris attract moisture and decay , which shorten a roof’s life. To protect shingles, carefully was the roof once a year using a pressure washer. Pay particular attention to areas where moss and mildew may accumulate .
In damp climates, it is good idea to nail a zinc strip along the center ridge of a roof, under the ridge caps. Minute quantities of zinc wash down the roof each time it rains , killing moss and mildew.
Overhanging tree limbs drop debris and provide shade that trim any limbs that overhang the roof.
If you have an unfinished attic, examine the underside of your roof with a flashlight on a rainy day. If you have an unfinished , examine the underside of your roof with a flashlight on a rainy day. If you find wetness , discoloration , or other signs of moisture ,trace the tail up to where the water is making its entrance .
Water flows toward a wall can be temporarily diverted to minimize damage. Nail a small block of wall in the path of the water, and place a bucket underneath to catch the drip. On a dry , drive a an through the underside of the roof decking to mark the hole .
If the leak is finding its way to finished ceiling , take steps to minimize damage until the leak can be repaired . As soon as possible, reduce the accumulation of water behind a ceiling by poking a small hole in the wallboard or plaster and draining the water.
Once you mark the source of a leak from inside, measure from that spot to a point will be visible and identifiable from the outside the house , such as chimney, vent pipe , or the peak of the roof. Get up on the roof and use that measurement to locate the leak .
If you roof is severely damage protect it with a tarp . To reattach smaller shingles loose use asphalt shingles use tube of asphalt sealer. Check the joints around the flashing , Pull old shingles around the good condition shingles . Remove old nails replace in the lowest point and work upward. Install all but the top shingle with nails , stop at the top shingle and seal at the sealer line .