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How to Install and Maintain Metal Clad Siding for a Durable, Modern Home Exterior

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 are at the forefront of this trend, with products like PAC CLAD standing seam panels and corten steel siding gaining popularity for their durability and minimalist aesthetic.

Double-layer metal wall composite panels for fire-resistant, eco-friendly exteriors
Double-layer metal wall composite panels for fire-resistant, eco-friendly exteriors

If you’re considering a metal clad house or upgrading your current exterior, this guide gives you everything you need: from selecting the right metal clad type to installation tips and long-term maintenance. Whether you’re working with corrugated steel facade panels, zinc clad dormers, or vertical standing seam metal siding, these steps will help you avoid costly mistakes.

2. Choosing the Right Metal Clad Material

Not all clad metals are created equal. Your choice depends on climate, budget, and design goals.

  • Corten steel siding offers a rustic, weathered look and forms a protective rust layer—but it’s not ideal for high-salt coastal areas.
  • Zinc metal siding is self-healing, low-maintenance, and perfect for contemporary zinc facade designs.
  • Aluminum clad steel combines light weight with strength and resists corrosion better than bare steel.
  • Copper siding develops a beautiful patina over time but comes at a premium price.

For cost-conscious projects, exterior corrugated metal siding or Colorbond standing seam panels provide excellent value. Always check local building codes—some regions restrict certain metals near the ocean due to salt corrosion risks.

3. Preparing for Installation

Before you install any metal clad wall system, ensure your substrate is solid, dry, and properly insulated. Use metal clad insulation behind the panels if energy efficiency is a priority.

Metal-clad insulation installed behind wall panels for energy efficiency
Metal-clad insulation installed behind wall panels for energy efficiency

Gather essential tools:

  • Metal snips or a metal sheet cutting tool
  • Drill with metal-compatible bits
  • Level and measuring tape
  • Snap lines for alignment
  • Appropriate fasteners (stainless steel screws for most applications)

Also verify that your chosen product—like PAC CLAD HWP or PAC CLAD coping—is rated for your region’s wind and snow loads.

4. Step-by-Step Installation Guide

Follow these steps for a professional-looking metal clad siding job:

4.1. Install a Weather-Resistive Barrier

Wrap the wall with a breathable house wrap to prevent moisture intrusion while allowing vapor to escape.

Breathable house wrap installed on wall for moisture protection
Breathable house wrap installed on wall for moisture protection

4.2. Add Furring Strips (If Needed)

For ventilated rainscreen systems—common with zinc clad roof or steel facade installations—attach vertical furring strips to create an air gap behind the panels.

4.3. Start at the Bottom

Begin with the first panel at the lowest point of the wall. Use a level to ensure it’s perfectly straight—any error here will compound upward.

4.4. Secure Panels Properly

Fasten panels using concealed clips for standing seam systems or exposed screws for corrugated styles. Never over-tighten; allow for thermal expansion.

4.5. Handle Corners and Penetrations

Use PAC CLAD column covers for corners or custom-bent trim for windows and doors. Seal all joints with UV-resistant sealant compatible with your metal type.

5. Common Problems and Fixes

Even the best metal clad building can face issues. Here’s how to troubleshoot:

  • Oil-canning (waviness): Caused by over-fastening or poor panel support. Fix by loosening screws slightly or adding intermediate supports.
  • Scratches or dents: Touch up with manufacturer-approved paint. For stainless clad aluminum or titanium clad surfaces, use matching polish kits.
  • Galvanic corrosion: Occurs when dissimilar metals (e.g., aluminum clad stainless steel) contact in wet conditions. Always use dielectric separators or compatible metals.
  • Fading or chalking: Common with lower-grade coatings. Upgrade to Kynar 500® or similar high-performance finishes for long-term color retention.

6. Maintenance Tips for Longevity

Metal clad siding is low-maintenance but not zero-maintenance. Follow these habits:

  • Rinse annually with water to remove dirt, pollen, and pollutants.
  • Inspect seals and fasteners every 2–3 years.
  • Avoid abrasive cleaners—especially on copper siding or zinc metal siding.
  • In snowy climates, clear heavy snow buildup from metal clad roofs to prevent panel deformation.

With proper care, a steel clad house or metal clad shed can last 50+ years without major repairs.

7. Conclusion

Metal clad exteriors blend industrial strength with modern elegance. Whether you choose corten steel siding for its raw beauty, a zinc clad dormer for subtle refinement, or vertical standing seam metal siding for clean lines, the key is smart material selection and precise installation. By following this guide, you’ll create a metal clad wall system that’s not only stunning but built to withstand decades of weather, wear, and time.

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