Choosing the right size of roofing nails for asphalt shingles is a crucial decision that can significantly impact the integrity and longevity of your roofing project. In this article, we’ll provide clear and concise guidance on the technical details and the correct size of roofing nails for asphalt shingles.

1. Nail Length:

The ideal nail length for securing asphalt shingles typically ranges from 1 to 1.5 inches. This length ensures that the nails penetrate through the shingle and firmly into the underlying roof deck, providing a secure attachment while preventing over-penetration, which could damage the roof structure.

2. Shank Type:

For asphalt shingles, it’s advisable to use roofing nails with a smooth shank. Smooth shank nails are easier to drive through the shingles and provide a reliable hold. The absence of ridges or spirals on the shank prevents the shingles from splitting or cracking during installation.

3. Nail Head Style:

Roofing nails for asphalt shingles typically come with a broad, flat head. The wide head creates a larger surface area for the shingle to rest on, ensuring a secure attachment. These nails are often referred to as "roofing nails with a large head" and are specifically designed for use with shingles.

4. Material and Coating:

Roofing nails used with asphalt shingles should be made of materials that offer excellent corrosion resistance, as they are exposed to the elements. Common materials include galvanized steel or stainless steel. These materials help prevent rust and ensure the nails remain durable throughout the life of the roof.

5. Building Code Compliance:

Always consult your local building codes or manufacturer guidelines for specific requirements related to roofing nails for asphalt shingles. These regulations may vary by location and could specify the type, size, and spacing of nails to ensure your roof complies with safety and durability standards.

6. Proper Installation:

To maximize the effectiveness of the nails, they should be driven flush with the surface of the shingle, ensuring a watertight seal. Overdriving the nails can damage the shingle, while underdriving may result in loose shingles.

7. Nail Spacing:

Nail spacing is another crucial consideration. In most cases, roofing nails should be spaced approximately 6 inches apart along the shingle’s width and 12 inches apart along its length. However, always refer to the manufacturer’s recommendations and local building codes for precise spacing requirements.

Conclusion:

Selecting the right size of roofing nails for asphalt shingles is a fundamental aspect of any roofing project. To ensure the structural integrity and longevity of your roof, consider the technical details we’ve outlined here, such as nail length, shank type, nail head style, material and coating, compliance with building codes, proper installation techniques, and nail spacing. By adhering to these guidelines, you’ll achieve a secure and durable asphalt shingle roof that can withstand the test of time and the elements.