When thinking about roofing, most people focus on the tiles — their durability, aesthetics, and weather resistance. However, a critical component often overlooked is the nails and fasteners that hold these tiles in place. These small but mighty elements are the backbone of any roofing system, ensuring long-term stability, safety, and performance.
Something as small and simple as screws and fasteners are easy to disregard as a vital component of a construction project. For stone coated metal roofs, fasteners make up less than *1%* of the total cost of installation, while they can result in *100%* of the roof’s failure!
We’re going to share some useful info on which metal roofing fastener will work the best for your specific project.
*1) Select The Right Screw Based On The Type Of Material*
When selecting the material of your screws, consider the type of metals the screws are fastening into. When dissimilar metals are in contact and are exposed to moisture, galvanic action occurs.
Galvanic action between dissimilar metals can result in premature fastener failure that leaves your panels at risk for leaks to occur.
*2) What Type Of Screw Coating To Use On A Metal Roof?*
Your metal roofing and siding materials on your job will dictate the finish, coating, and materials for the appropriate screws.
For Stone Coated Metal Roofing - zinc plated screws is popular, which will be referred to as galvanized screws. Dacromet-coated has a smoother look to the shank and head, which helps improve the overall appearance of finished projects.
The screw heads can also be painted the same color as your metal roofing or siding panels.
*3) What’s The Correct Screw Length For Metal Roofing?*
The right fasteners must not only be long enough to go through the material, but you must also take into account the length of the drill bit if you are using self-drilling screws.
Most importantly, you want at least one inch (2-3 cm) of screw penetration into the material that you are fastening to.
*Metal Roofing Screws*
Self-drilling screws are a particular screw type featuring a drill point at the tip. This means it can drill a hole while forming the mating threads at the same time. The rubber washer could help provide additional waterproofing and sealing performance.
*Wood Roofing Screws*
Wood roofing screws are a common form of fastener. They can penetrate through the metal sheeting, and then through to the wood. Often, they come with an extra-sharp tip to pierce the materials without bringing damage to the metal sheets. The material are also recommended in galvanized or steel.
Your roof is only as strong as its weakest component. By choosing high-quality nails and fasteners, you can enhance the overall performance and longevity of your roofing system. At Sangobuild, we are committed to delivering complete roofing solutions that combine top-tier materials with unmatched expertise.
Trust Sangobuild for a roof that’s secure, beautiful, and built to endure. Contact us today to learn more about our roofing systems and installation essentials!