Roofing nails are the unsung heroes of the construction industry, quietly securing shingles and sheathing to protect our homes from the elements. In this guide, we’ll delve into the technical aspects of roofing nails, their types, and their essential role in roofing projects. Whether you’re a seasoned contractor or a homeowner embarking on a DIY roofing job, this information will prove invaluable.

Types of Roofing Nails

1. Common Nails (Smooth Shank)

• Material: Common nails are usually made of steel.
• Shank: They have a smooth, round shank.
• Head: The head is typically flat or countersunk.
• Common Uses: Ideal for framing, sheathing, and underlayment.
• Notable Feature: Their simplicity and affordability make them versatile for general construction purposes.

2. Roofing Nails (Twisted Shank)

• Material: Roofing nails are usually made of galvanized steel or aluminum.
• Shank: They feature a twisted or spiraled shank, enhancing grip.
• Head: A large, flat head provides better holding power.
• Common Uses: Specifically designed for roofing applications.
• Notable Feature: Their twisted shank design improves resistance to pull-out.

3. Cap Nails

• Material: Cap nails are typically constructed with steel.
• Shank: They have a smooth or ring shank, often with a plastic or metal cap.
• Head: The cap is large and round.
• Common Uses: Ideal for securing roofing underlayment or housewrap.
• Notable Feature: The cap offers superior water and wind resistance.

4. Coil Nails

• Material: Coil nails are primarily steel.
• Shank: They come in various shank types, including smooth and ring.
• Head: Small heads are suitable for concealed fastening.
• Common Uses: Frequently used for roofing, siding, and framing.
• Notable Feature: Coil nails are ideal for high-speed nail guns.

The Role of Roofing Nails in Roof Construction

• Attachment: Roofing nails are responsible for securely attaching shingles to the roof deck. The type of nail used influences the roof’s durability and resistance to harsh weather conditions.

• Waterproofing: Properly driven roofing nails help maintain the integrity of the roof’s waterproofing system. The twisted shank of roofing nails, in particular, minimizes the risk of water penetration.

• Ventilation: When nailing down roof shingles, it’s essential to leave a small gap to allow for proper attic ventilation. Roofing nails facilitate this crucial aspect of roofing.

• Wind Resistance: Roofing nails, especially with cap nails, enhance the roof’s ability to withstand strong winds, safeguarding your home from wind-related damage.

Choosing the Right Roofing Nails

Selecting the right type of roofing nails depends on factors like the roofing material, local climate, and building codes. Always consult with your roofing material manufacturer or a professional roofer for specific recommendations.

• Common Nails: These are suitable for general construction tasks and sheathing but not recommended for roofing.

• Roofing Nails: Designed for roofing projects, their twisted shank offers superior grip.

• Cap Nails: Cap nails are ideal for underlayment and housewrap, providing an extra layer of protection against moisture.

• Coil Nails: These are versatile and suitable for various construction tasks, including roofing.

In conclusion, the right choice of roofing nails is crucial for a durable and weather-resistant roof. Understanding the types of nails available and their specific uses will help ensure the success of your roofing project, whether you’re a professional contractor or a homeowner with a DIY spirit.