Where To Screw Metal Roofing? [Complete Installation Guide]

There’s a lot that goes into a solid metal roof, but screw placement? That’s the part people second-guess the most.  Flat or rib? How far apart? What actually matters?  If you’ve been asking those questions, you’re in the right place. We’ll break down where to screw metal roofing and how to do it in a way that holds up. Key Notes Screws go in flat sections (valleys), not ribs, for better structural grip and sealing. Standard spacing: 24 inches vertically, every 3rd rib horizontally for corrugated panels. Use drill drivers with adjustable torque, not impact drivers, to avoid overdiving screws. Proper technique requires perpendicular angle and EPDM rubber washers for watertight seal. Rib or Flat? The Screw Placement Debate Let’s start with the big one: where to screw metal roofing panels – on the rib or in the flat? Most manufacturers (and seasoned pros) agree: place screws in the flat section, also called the valley. This is the part of the panel that sits flush against the roof deck or purlins. Yes, some roofers prefer the rib. And yes, there are certain exceptions. But for standard exposed-fastener panels? The flat is where it’s at. Location Main Advantages Main Disadvantages Flat/Valley Secure grip, better seal, even load, less flexing May sit in standing water if washers fail Rib Keeps screws out of water, allows some expansion Less structural grip, harder to seal properly Quick Tip: Always follow your panel manufacturer’s guide. That’s the rulebook that matters most – not doing so can void your warranty. Why Screws Go in the Flat (Most of the Time) There are solid reasons why the flat section is the go-to: When Screws Might Go in the Rib (Rare Exceptions) While the flat is standard, some manufacturers do specify rib fastening for particular panels.  A few reasons why: But these are exceptions – not the rule. Always check the install manual for your specific panel. How to Space Screws: Vertical & Horizontal Guidelines Vertical (Up the Slope): Horizontal (Across the Panel): Spacing Direction Typical Value Notes Vertical (up panel) 24 in O.C. Reduce spacing in high-wind or heavy snow areas Horizontal (across panel) Every 3rd rib or every flat Always screw near edges and overlaps Ideal Screw Pattern for Metal Roofing The goal is clean, straight vertical lines of screws. This is called a “screw line” pattern, and it’s important for both structure and appearance. How to Drive Screws for a Watertight Seal This part matters. More than you think. What Tool Should You Use? Use a drill driver, not an impact driver. Impact drivers might feel faster, but they can overdrive screws, damage panels, and crush washers. Drill drivers with adjustable torque are safer and give you more control. Screw Placement by Panel Type Panel Type Screw Placement Corrugated/Ribbed Flat section (valley), every 3rd rib R-Panel/PBR Each flat, aligned vertically Standing Seam Concealed clips (no exposed screws) Metal Shingles Manufacturer-specified spots Screw location can change based on what kind of metal panel you’re working with: What Happens If You Get It Wrong? A lot, unfortunately: Moral of the story: It’s worth taking the time to get screw placement right the first time. Weather & Climate Considerations Hot/Cold Weather: Windy Conditions: Screw Maintenance: How Often Should You Check? If a screw is loose, retighten it. If a washer is damaged or crushed, replace the whole screw. Stop Guessing Where Screws Should Go Protect your home with expert, leak-proof installation. BOOK FREE APPOINTMENT Frequently Asked Questions Can I reuse old screw holes when replacing metal roofing? No, reused holes typically won’t hold screws securely and may leak. It’s best to shift panels slightly or patch old holes with sealant and install new screws nearby. Do I need to pre-drill holes for metal roof screws? Not always, but pre-drilling can help with accuracy and cleaner finishes, especially on thinner panels or when attaching to metal purlins. It also reduces the risk of stripping or panel damage. Are self-tapping screws okay for metal roofing? Yes – in fact, most roofing screws are self-tapping. Just make sure they’re designed specifically for metal roofing and come with high-quality rubber washers. How many screws do I need per metal roofing sheet? It depends on panel size and spacing, but a typical 36″ wide panel needs 4–5 screws per row, spaced every 24″ vertically. That averages around 80–100 screws per 100 square feet of roofing. Conclusion When it comes to where to screw metal roofing, the safest bet (across most standard panels) is the flat section. It offers the most secure grip, better seal, and longer-lasting performance.  But getting it right isn’t just about where you place the screws. Spacing matters. So does the angle, the tool you use, the type of washer, and how tight you go.  Small details like these are what separate a roof that lasts decades from one that fails early. If you’re planning a repair or replacement and want it done right from the start, book a free appointment with our team. We’ll check your screw pattern, spacing, and overall setup – no guesswork needed.

Metal Roof Coating | Everything To Know

Not all metal roofs need replacing. Some just need the right coating at the right time.  If you’re trying to make sense of what that actually means, you’re in the right place. We’ll cover what metal roof coating is, why it matters, how long it lasts, and what to watch out for before making a call. Key Notes Metal roof coatings add 10-20 years of life at $1-5/sq ft versus $7-16+/sq ft for replacement. Six coating types available: acrylic (budget-friendly) to PVDF (maximum durability for harsh conditions). It’s best for roofs with surface rust, fading, minor leaks, but still structurally sound. Coatings provide energy savings, leak prevention, and extended lifespan with proper maintenance. What Is a Metal Roof Coating? A metal roof coating is a protective layer applied over an existing metal roof to seal, protect, and prolong its life.  It acts as a weatherproof, UV-resistant membrane that helps block moisture, prevent rust and corrosion, reflect heat, and stop minor leaks in their tracks. Think of it like a heavy-duty sunscreen and raincoat rolled into one – built to handle whatever nature throws at your roof. Unlike a full roof replacement, coatings don’t require removing the existing structure.  Instead, they work with what you’ve got, reinforcing the roof and giving it a second wind. Benefits of Coating a Metal Roof Longer Roof Lifespan  Coatings form a tough, flexible barrier that slows down wear and tear, rust, and water damage. Done right, a coating can add 10–20 years to your roof’s life. Energy Efficiency  Reflective coatings help bounce solar heat away from your roof, keeping your building cooler and easing the load on your AC.  That translates into lower energy bills – especially in hot Southern climates. Leak Prevention  A seamless coating seals small cracks, gaps, seams, and fasteners. It keeps water out and peace of mind in. Better Curb Appeal  Coatings can refresh a weathered roof with a clean, consistent finish – some even come in color options to match your style. Cost-Effective  Compared to a full roof replacement, coating is far easier on the wallet. It’s less disruptive, faster to apply, and often delivers 50% or more in upfront savings. Environmentally Friendly  Extending your roof’s life means less waste. Many coatings also have low VOCs and contribute to energy efficiency – a win for sustainability. Signs Your Metal Roof Might Need a Coating Spotting these early? You’re in a great position to coat before things get expensive. Coating vs Replacement: What’s Smarter? Factor Coating Replacement Cost $1–$5/sq ft $7–$16+/sq ft Lifespan Added 10–20 years 40+ years Disruption Minimal Significant Structural Issues? Not addressed Fully resolved Choose coating when the roof is still structurally sound with minor wear. Go with replacement when rust is severe, panels are damaged, or the roof is nearing end of life. Types of Metal Roof Coatings (& When to Use Them) Coating Type Best For Example Use Acrylic Budget-friendly, easy application DIY on mild-climate roofs Silicone Waterproofing, harsh UV, low maintenance Flat roofs in rainy or hot zones Elastomeric Flexibility, thermal expansion Older roofs with movement Polyurethane Impact and chemical resistance Industrial buildings Cool Roof Maximum solar reflectivity Hot climates, energy efficiency Fluoropolymer (PVDF) Long-term durability, color retention Coastal or industrial sites Each has strengths and tradeoffs. Silicone and polyurethane are more durable, while acrylics are affordable but need more upkeep.  Choose based on climate, roof condition, and goals. How to Choose the Right Coating Still unsure? This is where a professional inspection pays off. How Metal Roof Coating Is Applied (Step-by-Step) Timeline: Typically 3–6 days start to finish for most roofs. Can You DIY a Metal Roof Coating? Short answer: You can, but it’s not always a good idea. DIY works if: DIY risks include: Pros bring: Experience, proper gear, high-end products, and better long-term results. For anything bigger than a shed or small outbuilding, we’d recommend calling in the pros. Not Sure If DIY Is Worth The Risk? Talk to a pro before you climb that ladder. BOOK FREE APPOINTMENT How Long Does a Coating Last? Most coatings last between 10 to 20 years, depending on the type, climate, and how well you maintain it. Silicone and fluoropolymer coatings tend to sit at the higher end of that range. With proper reapplication and upkeep, a coated metal roof can easily last 40+ years total. Maintenance Tips After Coating Frequently Asked Questions Can metal roof coatings be applied in cold weather? Most coatings require temperatures above 50°F to cure properly. Cold weather can slow down drying times or prevent proper adhesion, so it’s best to schedule coating projects during mild, dry conditions. Will coating a metal roof stop all condensation issues? No. While coatings help seal leaks and reduce surface temperature swings, they don’t stop internal condensation caused by poor ventilation or insulation. You’ll need to address those root issues separately. Do roof coatings change the noise level during rain? Yes, slightly. Coatings can reduce noise by adding a dampening layer over the metal surface, but the effect is minor. For more sound reduction, interior insulation is more effective. Can I walk on a coated metal roof? Yes, but with care. While most coatings are tough enough for occasional foot traffic, frequent walking can wear them down. Always use soft-soled shoes and avoid walking during or right after application. Conclusion  If your metal roof’s starting to show its age, but still has some life left in it, coating can buy you time, protection, and serious savings.  It’s not a fix-all, and it’s definitely not a substitute for full-on structural repair, but when applied at the right moment, a good coating stops rust in its tracks, seals up weak spots, and reflects enough heat to noticeably lower your energy bills.  And for many property owners, that’s exactly what’s needed to avoid a replacement for another decade or two. Not sure what condition your roof’s actually in? Book a free appointment – we’ll take a look, let you know if metal roof coating is the

Can You Put Solar Panels on a Metal Roof?

Metal roofs are known for being tough and long-lasting, but are they solar-ready?  The short answer: usually, yes. The longer answer depends on the type of metal roof you have and how the panels get mounted.  We’ll break down what works, what doesn’t, and what you’ll want to know before installing solar on a metal roof. Key Notes Solar panels work on all metal roof types; standing seam uses clamps, corrugated requires drilling. Standing seam roofs are ideal with non-penetrating clamp systems that avoid holes and leaks. Metal roofs offer 40-70 year lifespan, superior strength, and cooling benefits for solar panels. Yes, You Can Put Solar Panels on a Metal Roof Let’s get the big question out of the way: yes, solar panels can be installed on metal roofs.  That includes standing seam, corrugated, and trapezoidal profiles. The key difference is how the panels are installed. In both cases, your installer will match the mounting hardware to your specific roof type and ensure proper sealing and load distribution.  Best Metal Roof Types for Solar Installation Standing Seam Metal Roofs These are hands-down the best option for solar panel installs. Why? Because the raised seams allow for non-penetrating clamp systems.  No drilling means: Plus, standing seam panels handle thermal expansion well thanks to their clip-mounted design – a bonus when you’re adding a rigid solar array up top. Corrugated & Trapezoidal Metal Roofs These profiles don’t have raised seams, so installers need to drill into the ridges (high points) to secure mounting brackets.  This method: That said, with an experienced installer and the right materials, corrugated metal roofs can still be excellent solar hosts. Why Metal Roofs Are Great for Solar Panels Metal roofing and solar panels are a powerhouse combo.  Here’s why: Are There Any Downsides or Challenges? Sure. Here’s what to consider: But overall? These are manageable trade-offs for long-term performance. Does Solar Affect Metal Roof Durability? If anything, solar panels can extend the life of your metal roof: The caveat: poor installation on corrugated roofs (i.e. improper sealing or low-quality brackets) can lead to leaks or corrosion.  That’s why choosing an installer with experience in metal roofing and solar is critical. What Happens if the Roof Needs Repairs After Solar Is Installed? This is where metal roofing shines, especially standing seam types: On corrugated roofs with drilled mounts, removal and reinstallation is trickier and costlier. If your roof is older, it might be worth re-roofing before installing solar to avoid future hassle. How Solar Panels Are Installed on Metal Roofs Standing Seam: Clamp-On Installation This is the gold standard. Specialized clamps (usually aluminum) grip the raised seams and serve as the foundation for the mounting system.  These clamps: It’s cleaner, faster, and far less risky than other installation types. Corrugated/Trapezoidal: Bracket Installation Here, installers drill pilot holes at the roof’s high points and secure brackets using self-tapping screws.  Key precautions include: Done well, this method is solid, but it requires more finesse. Tools, Techniques & Best Practices Installing solar on metal roofs isn’t a one-size-fits-all job. It requires: Bottom line: hire pros who know metal roofing inside and out. Make Your Roof Solar-Ready, Leak-Free, Long-Lasting Get expert guidance before you install solar panels. BOOK FREE APPOINTMENT Frequently Asked Questions Can solar panels cause rust on a metal roof? Not if properly installed. Most mounting systems use stainless steel or aluminum hardware that won’t react with your metal roof. Just avoid dissimilar metals and ensure all contact points are sealed. Will adding solar panels void my metal roof warranty? It depends on the roof manufacturer and how the panels are installed. Using non-penetrating seam clamps usually preserves the warranty – always confirm with both your roofer and solar installer. Can I install solar panels on a metal roof with a steep pitch? Yes, but it may require additional safety measures and specialized mounting hardware. Steep roofs can actually improve solar output in some regions, especially during winter. Is it harder to clean or maintain solar panels on a metal roof? Not necessarily. In fact, the smoother surface of metal roofing often sheds debris better. Just make sure access is safe – especially if your roof is steep or multi-level. Conclusion  Whether you’ve got standing seam or corrugated panels, the short answer to can you put solar panels on a metal roof is a solid yes.  Standing seam roofs are ideal because the panels can be clamped on without a single hole. Corrugated roofs need a bit more care (drilled mounts, proper sealing) but they’re still very solar-friendly when done right.  Metal roofs bring serious long-term value to the table: they last decades, handle panel weight with ease, and can even improve solar performance by keeping things cooler up top.  It all comes down to using the right materials and working with people who know what they’re doing. If you’re planning to go solar – or even just thinking about it – it’s worth making sure your metal roof is ready for it. Book a free appointment to get expert guidance on repairs, replacements, or new installs that won’t interfere with your solar goals down the line.

5 Types of Metal Roofing | Pros, Cons & How To Choose

Metal roofs don’t just protect your home—they level it up. They handle wild weather, boost curb appeal, and can last a lifetime.  But not all metal roofs are the same.  Steel is tough and budget-friendly, while copper ages like fine wine. Picking the right one makes all the difference. Here’s what you need to know about the five best metal roofing options—so you can make the right call. Key Notes Steel offers the best value-to-durability ratio among all metal roofing types. Coastal homeowners should go for aluminum or zinc for salt-air resistance. Premium metals like copper and zinc can last 80-100+ years with minimal maintenance. Comparison: Metal Roofing Types Feature Steel Aluminum Copper Zinc Tin Coastal Friendly ❌ ✔️ ✔️ ✔️ ✔️ Lightweight ❌ ✔️ ❌ ❌ ✔️ Low Maintenance ❌ ✔️ ✔️ ✔️ ❌ Dents Easily ✔️ ❌ ❌ ✔️ ✔️ Energy Efficient ✔️ ✔️ ✔️ ✔️ ❌ Lifespan (years) 40-70 50+ 80-100+ 80-100+ 50-70 1. Steel Roofing Steel is one of the most common types of metal roofing, thanks to its durability and affordability. It comes in various coatings, like galvanized or Galvalume, to enhance rust resistance.  These coatings extend the lifespan of the roof while keeping maintenance minimal. Steel roofs are popular for both residential and commercial buildings thanks to their strength.  The metal is highly recyclable, making it an eco-friendly choice. Homeowners can choose from different thicknesses, known as gauges, to match their climate needs. Steel roofing also provides solid energy efficiency by reflecting heat and reducing cooling costs. Pros: Durable and strong Affordable compared to other metals Energy efficient Available in multiple finishes Cons: Prone to rust without proper coating Noisy in heavy rain 2. Aluminum Roofing Aluminum is a lightweight metal roof option that resists corrosion, making it an excellent choice for coastal areas. Unlike other metals, aluminum naturally forms a protective oxide layer that prevents rust.  It’s easy to shape and install, making it ideal for complex roof designs.  Since aluminum reflects heat well, it can help regulate indoor temperatures. It’s also highly sustainable, as most aluminum roofing contains a significant percentage of recycled material.  The downside: It’s more expensive than steel but offers greater longevity in harsh conditions. Pros: Corrosion-resistant, great for coastal areas Lightweight and easy to install Recyclable and eco-friendly Reflects heat well Cons: More expensive than steel Softer so prone to dents 3. Copper Roofing Copper is a premium choice for residential metal roofing, known for its long lifespan and stunning appearance. It develops a natural patina, shifting from a bright metallic hue to a greenish tone. This natural weathering process enhances its resistance to corrosion while adding a unique aesthetic.  While copper is often used for accents or smaller sections, it is durable enough to cover an entire roof. It’s also one of the longest-lasting metals, with some copper roofs lasting over 100 years.  Due to its high price, copper is more likely found on historic buildings and luxury homes. Pros: Long-lasting Unique, beautiful patina Highly resistant to corrosion Low maintenance Cons: Expensive Expands and contracts with temperature changes 4. Zinc Roofing Zinc is another self-healing metal roofing option that develops a patina over time, offering natural protection against corrosion. Its ability to self-repair minor scratches makes it a top choice for longevity.  This metal is highly malleable, allowing for intricate designs without the risk of cracking. It’s also an energy-efficient material, helping regulate indoor temperatures in extreme weather.  While zinc is commonly used in Europe, it’s gaining traction in the US as an eco-friendly roofing solution.  One drawback is its cost, which is higher than steel or aluminum, but its longevity makes it a worthwhile investment. Pros: Self-healing patina resists corrosion Lifespan of 80+ years Energy-efficient and recyclable Flexible and easy to shape Cons: Expensive upfront Matte patina not to everyone’s liking 5. Tin Roofing Though once common, tin roofing has largely been replaced by aluminum and galvanized steel. Tin roof types were originally made from hand-hammered sheets of tin-plated iron.  Today, what people call a tin roof is often just a mislabeling of steel or aluminum roofs. True tin roofs are lightweight, naturally corrosion-resistant, and easy to install.  While rare in modern applications, they remain a historical roofing material in some older homes and barns. If you’re considering a tin roof, make sure you’re getting the material you expect. Pros: Naturally rust-resistant Lightweight and easy to work with Historic appeal Cons: Difficult to find true tin roofing Less durable than modern metal options How to Choose the Right Metal Roof Considering a metal roof overhaul? Here’s what you should be thinking about: Budget  If affordability is your main concern, steel is your best bet. It’s one of the cheapest metal roofing materials and still offers excellent durability.  Aluminum is pricier but offers better corrosion resistance. Copper and zinc are premium materials, ideal for long-term investments. Climate and Environment Live near the coast? Go for aluminum or zinc. These metals handle salty air better than steel.  If you’re in a region with extreme temperature shifts, copper and zinc expand and contract more easily without cracking. Longevity and Maintenance If you want a roof that lasts a lifetime, copper and zinc should be at the top of your list.  Steel and aluminum need coatings and occasional maintenance, but they still offer decades of protection. Tin, while rare, requires more upkeep to maintain its integrity. Pros and Cons of Metal Roofing Still sitting on the fence? Scan this quick recap: Pros: Longevity: Metal roofs last 40-100 years, far outlasting asphalt shingles. Energy Efficiency: Reflects heat, reducing cooling costs in warm climates. Low Maintenance: Unlike shingles, metal roofs don’t need frequent repairs. Sustainability: Most metal roofs contain recycled materials and are recyclable themselves. Cons: Cost: Higher upfront cost compared to asphalt shingles. Noise: Without proper insulation, rain and hail can be loud. Denting: Softer metals like aluminum and copper can dent from heavy impact. Want A Roof That Lasts A Lifetime? Get expert-installed metal roofing built for durability &