1. Introduction
In the past 48 hours, architects and builders across North America have seen a surge in demand for modern, fire-resistant, and eco-friendly home exteriors—driven by new wildfire resilience codes in California and Oregon. Metal clad systems, especially those using corten steel siding and zinc clad roofs, are topping the list of preferred materials. If you’re considering upgrading your home with metal cladding or troubleshooting an existing installation, this guide delivers clear, actionable steps.
Metal clad doesn’t just refer to one product—it’s a broad category that includes metal clad wall panels, corrugated steel facades, standing seam siding, and even metal clad electrical wire. Understanding the metal clad meaning is key: it describes any surface where a base metal (like steel) is bonded or coated with another metal (like zinc, copper, or aluminum) for enhanced durability, aesthetics, or corrosion resistance.
2. Choosing the Right Metal Clad Type for Your Project
Not all clad metals perform the same. Your climate, budget, and design goals will dictate the best option.
- Corten steel siding offers a rustic, weathered look and develops a protective rust layer—ideal for modern farmhouse or industrial styles. Note: corten siding cost ranges from $8–$15 per sq. ft., higher than standard options but lower long-term maintenance.
- Zinc metal siding and zinc clad dormers provide a sleek, self-healing patina and last 80+ years. Great for coastal areas due to salt resistance.
- Aluminum clad steel or stainless clad aluminum combines light weight with strength—perfect for vertical standing seam metal siding.
- For budget-conscious builds, exterior corrugated metal siding in Colorbond or PAC Clad HWP finishes delivers style without breaking the bank.
3. Step-by-Step Installation of Metal Clad Siding
Proper installation prevents leaks, warping, and premature aging. Follow these steps:
3.1 Prepare the Substrate
Ensure your wall sheathing is flat, dry, and covered with a high-quality weather-resistive barrier (WRB). Use furring strips if needed to create an air gap—this improves drainage and reduces thermal bridging, especially critical for a metal clad house in humid climates.
3.2 Measure and Cut Panels
Use metal sheet cutting tools (like aviation snips or a circular saw with a metal-cutting blade) to size your panels. Always wear safety gear. For precision, mark cuts on aluminum clad sheet or corten steel plate before trimming.
3.3 Install Starter Strips and Flashing
Begin at the bottom. Attach corrosion-resistant starter strips and integrate PAC Clad coping or column covers around corners and penetrations. Seal all joints with compatible sealant.
3.4 Mount the Panels
For standing seam facade systems, use hidden fasteners to avoid water intrusion. With corrugated steel facade panels, pre-drill holes to prevent cracking and use neoprene-washed screws. Maintain manufacturer-recommended expansion gaps—metal expands in heat!
3.5 Finish Edges and Transitions
Use trim pieces like PAC Clad column covers or custom-formed edge caps. Ensure overlaps direct water away from seams.
4. Common Problems and How to Fix Them
Even the best metal clad building can face issues. Here’s how to troubleshoot:
- Rust spots on clad steel? This usually means the protective layer was scratched during install. Sand lightly, apply a rust converter, then touch up with matching paint or let corten re-patinate naturally.
- Loose panels? Check fastener tightness. Over-tightening can deform metal; under-tightening invites wind uplift.
- Condensation behind metal clad wall? Improve ventilation or add metal clad insulation with a vapor barrier.
- Fading color on aluminum clad steel? Clean with mild soap and water. Avoid abrasive cleaners that strip coatings.
5. Maintenance Tips to Extend Lifespan
Metal clad siding is low-maintenance but not zero-maintenance. Twice a year:
- Rinse with a garden hose to remove dust, pollen, and salt deposits.
- Inspect seals, fasteners, and flashings for wear.
- For copper siding or zinc facade, allow natural patina development—don’t polish unless restoring historic detail.
Avoid power washing, which can force water behind panels. And never use chlorine-based cleaners on stainless steel plate or aluminum diamond tread plate—they cause pitting.
6. Safety and Code Considerations
Always check local building codes. In commercial projects, metal clad electrical wire must meet NEC standards for armor and grounding. For residential use, confirm if your jurisdiction allows exposed metal clad wiring or requires conduit.
When working with thick steel plate or boiler plate steel, secure edges to prevent cuts. Use gloves rated for metal handling, especially with perforated plate or diamond plate steel sheets.
7. Conclusion
Whether you’re building a new metal clad shed or re-siding a steel clad house, choosing the right clad metal and installing it correctly ensures decades of performance and curb appeal. From corten steel facade drama to the clean lines of a zinc clad roof, metal cladding merges form and function like few other materials. With proper care, your metal clad wall won’t just survive the elements—it’ll define your home’s character for generations.
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