When it comes to installing roll roofing, selecting the right nails is crucial to ensure the roof’s longevity and stability. In this guide, we will provide clear and concise information on the types of nails commonly used for roll roofing, their specifications, and the best practices for a successful roofing project.

1. Nails for Roll Roofing

The two primary types of nails used for roll roofing are:

• Cap Nails: These nails are specifically designed for securing roll roofing material. Cap nails feature a broad, flat head that holds the roofing material securely in place. They are typically available in lengths of 1 inch or 1 1/4 inches.

• Galvanized Roofing Nails: While cap nails are most common for roll roofing, galvanized roofing nails can also be used. These nails come in various lengths, including 1 inch, 1 1/4 inches, and 1 1/2 inches.

2. Nail Material and Coating

Nails used for roll roofing are usually made from galvanized steel. Galvanized nails are coated with a layer of zinc, which provides excellent resistance to rust and corrosion. This is essential for outdoor roofing applications, where the nails are exposed to the elements.

3. Nail Length

The appropriate nail length depends on the thickness of the roll roofing material:

• For roll roofing materials that are less than 2 layers thick, 1-inch nails are typically sufficient.
• For roll roofing materials that are thicker or have multiple layers, 1 1/4-inch nails are recommended for better penetration and holding power.

4. Nailing Pattern and Spacing

When installing roll roofing, the nailing pattern and spacing are vital to prevent leaks and ensure the material remains secure. Here are some general guidelines:

• Place nails at least 3 inches from the edges of the roofing material to prevent tearing.
• Space the nails approximately 6 inches apart along the horizontal seams, ensuring they penetrate the underlying roof deck.
• For vertical seams, it’s advisable to space nails at intervals of about 9 inches.

5. Installation Tips

• Use a roofing nail gun or a hammer, depending on your preference and the size of the project. A nail gun can make the installation process faster and more efficient.
• Be cautious not to overdrive the nails, as this can damage the roofing material.
• Ensure the roofing material is properly aligned and securely fastened to prevent wind and water damage.

Conclusion

Choosing the right nails for your roll roofing project is essential to its success. Cap nails and galvanized roofing nails are the primary options, and the correct nail length, spacing, and installation techniques are crucial for a durable and leak-free roofing system.

Remember to follow the manufacturer’s guidelines and local building codes when installing roll roofing. With the appropriate nails and proper installation, you can have confidence in the long-term performance of your roll roofing project.