11. Which is TRUE about repairing an asphalt shingle?
Answer: C
An acceptable spot repair for a slightly damaged shingle would be to apply roofing cement and sprinkle loose granules into the crack.
Applying roofing cement and adding loose granules into the crack is a recognized method for repairing slightly damaged asphalt shingles, as it helps restore some of the shingle's protective qualities and blends the repair with the surrounding material.
A) Applying plastic cement to the bottom of the shingle to seal it is an acceptable repair method.
While applying plastic cement can be a method to seal shingles, it is not the most effective or commonly recommended practice for repairing minor damage. This technique may not adequately address the specific issues associated with cracked or damaged areas, making it less favorable compared to the use of roofing cement and granules.
B) Galvanized sheet metal should not be used under a damaged asphalt shingle.
This statement is misleading. Galvanized sheet metal can actually be used as a supportive layer under damaged shingles to provide additional protection against leaks. However, it is not typically a repair method for the shingle itself, thus making this option incorrect in the context of the question.
C) An acceptable spot repair for a slightly damaged shingle would be to apply roofing cement and sprinkle loose granules into the crack.
This option accurately describes a widely accepted method for repairing minor damage to asphalt shingles. The application of roofing cement fills in the crack, while the granules help to camouflage the repair and restore some of the shingle's protective features, making this the correct choice.
D) Cold weather is the best time to repair a damaged shingle.
Repairing shingles in cold weather is generally not advisable, as lower temperatures can hinder the effectiveness of adhesives and materials. Warm, dry conditions are preferred for such repairs, making this option incorrect.
Conclusion
The correct answer, option C, provides an effective method for addressing minor damage to asphalt shingles, emphasizing the importance of using roofing cement and granules for a proper repair. Other options either present incorrect methods or fail to adequately address the question's focus on effective repair techniques. Thus, option C stands out as the most appropriate choice.