Posted by JWmHarmon on March 27, 2003 at 12:20:30:
In Reply to: Help: Shingle Potential Problem? posted by Andrew Johnston on March 26, 2003 at 09:30:53:
Cracked shingles need to be cut and used on the ends or as cap shingles so they don't go to waste. Cutting the shingles is a part of the normal installation process.
Cracked shingles should not be used as a full shingle since it will not reseal itself. Many roof shingles come in a three-tab design. There is nothing wrong with cutting out the one tab that is damaged and throwing it away and using the two parts that are undamaged.
When the shingles are placed in direct sunlight they become soft and pliable. When they get cold they can be brittle and crack if not handled carefully. If handled properly they will perform well over a long period of years.
I would recommend examining the shingles for any damage and making sure that damaged portions of shingles are not installed.
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