A Guide to Common Roofing Screws in the US and Canada

As a leading manufacturer of roofing fasteners, we understand the importance of using the right screw for the job. Whether you're a fastener wholesaler or a roofing contractor, navigating the diverse options for roofing screws in the US and Canada can be challenging.

This article provides a helpful overview of the most common roofing screws to ensure you're recommending and installing the best solutions for your projects.

Understanding Screw Components:

Before diving into specific types, let's establish a common ground. Most roofing screws share similar components:

Head: This comes in various shapes like flat head, oval head, and round head, each serving a specific purpose (countersunk vs. exposed).

Drive: The slot or indentation where the driver fits. Phillips head is the most common, offering good grip and minimizing cam-out (driver slippage).

Shank: The threaded body that penetrates the materials being fastened.

Point: This tapered tip helps drill into wood or sheet metal, creating a clean pilot hole.

Coating: Most roofing screws have a protective coating like zinc or weatherized for superior corrosion resistance.

Common Roofing Screw Types:

Bugle Head Screws: These feature a large, countersunk head that provides a clean, low-profile finish. Ideal for metal roofing applications where a flush appearance is desired.

Tek Screws: Designed with a self-drilling point, these screws penetrate metal sheeting without pre-drilling, saving time and effort. Popular for installing metal roofing panels directly to steel purlins.

Wafer Head Screws: Featuring a large, flat head with a washer-like base, these screws offer excellent bearing strength and are ideal for securing metal roofing to uneven surfaces.

Self-Sealing Screws: Equipped with a neoprene washer under the head, these screws create a watertight seal at the point of penetration, crucial for preventing leaks around the screw head.

Material Considerations:

Metal Roofing: Tek screws and bugle head screws with appropriate drill points are suitable for metal roofing installations.

Asphalt Shingles: Self-sealing screws with appropriate coatings are recommended for asphalt shingle applications.

Metal Panels with Wood Substrate: Choose screws with appropriate length to penetrate both the metal panel and underlying wood structure.

Choosing the Right Screw:

The ideal roofing screw depends on several factors:

Roofing Material: Metal, asphalt shingles, or other materials.

Substrate: Wood, metal purlins, or concrete.

Application: Securing panels, flashing, or specific roofing elements.

Head Style: Flush finish, low profile, or additional bearing strength.

Length: Penetrating both materials and ensuring proper grip in the substrate.

Coating: Matching the corrosion resistance requirements of the environment.

By understanding common roofing screw types and their applications, you can effectively advise your clients and ensure optimal performance on their roofing projects.

As a manufacturer of high-quality roofing screws, we're committed to providing the right solutions for your North American roofing needs.

Feel free to contact us to discuss your specific requirements and browse our comprehensive selection of roofing fasteners.