North Carolina Building Contractor License Practice Exam

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How many pounds of nails per square are required for installing asphalt shingles?

0.854 pounds
1.054 pounds
1.254 pounds
1.454 pounds

The correct answer is: 1.054 pounds

The correct quantity for the installation of asphalt shingles is 1.054 pounds of nails per square. In roofing terminology, a "square" refers to a unit of measure that covers an area of 100 square feet. The amount of nails required is determined by the roofing manufacturer's specifications, roofing codes, and best practices for ensuring a secure and long-lasting roof. The 1.054 pounds represents the average weight of nails typically used for securing asphalt shingles effectively. This amount is tailored to provide the necessary fastening strength, ensuring the shingles remain in place during various weather conditions, such as high winds or heavy rain. Understanding the importance of using the correct quantity of nails is essential for both the integrity of the roofing system and adherence to building codes. Insufficient fastening can lead to issues like curling or lifting of shingles, ultimately compromising the roof’s functionality and lifespan.