Installing Metal Roofing Over Existing Asphalt Shingles for Enhanced Durability and Style

Installing Steel Roofing Over Asphalt Shingles A Comprehensive Guide

When it comes to roofing options, homeowners are constantly seeking durability, efficiency, and aesthetic appeal. Steel roofing has gained popularity thanks to its resilience and long lifespan. If you are considering upgrading your home’s roof, installing steel roofing over existing asphalt shingles can be a practical and cost-effective solution. This guide will walk you through the essential steps and considerations for a successful installation.

Why Choose Steel Roofing?

1. Durability Steel roofs are known for their strength and resilience against harsh weather conditions. They can withstand extreme temperatures, heavy snow, and strong winds without degrading. 2. Longevity A well-installed steel roof can last 50 years or more, significantly outpacing traditional asphalt shingles, which typically last about 20 years.

3. Energy Efficiency Steel roofing can reflect sunlight, which helps keep your home cooler and reduces energy costs, especially in warmer climates.

4. Environmentally Friendly Steel is often made from recycled materials and is fully recyclable at the end of its life cycle, making it an eco-friendly choice.

5. Aesthetic Appeal Available in various colors and styles, steel roofing can enhance your home’s curb appeal.

Advantages of Installing Over Asphalt Shingles

Rather than removing old asphalt shingles, you can install steel roofing directly over them. This approach has several benefits

1. Cost-Effectiveness Skipping the removal of shingles can save on labor and disposal costs. 2. Time Savings The installation process is quicker when you avoid the additional step of tearing off the old roof.

3. Added Insulation The existing shingles can provide an extra layer of insulation and improve energy efficiency.

4. Fewer Landfill Contributions By leaving shingles in place, you prevent additional waste from going to landfills.

Step 1 Preparation

Before beginning the installation, check local building codes to ensure compliance with regulations. Obtain any necessary permits, and consider hiring a professional or consulting with experienced roofers if you are unsure about any part of the process.

Step 2 Inspect the Roof

Examine the existing asphalt shingles for any damage, such as curling, cracking, or missing shingles. Any compromised areas should be repaired to provide a stable base for the steel roofing.

Step 3 Install Underlayment

Lay down a moisture barrier or underlayment over the existing shingles. This protective layer helps prevent moisture from seeping through and provides additional insulation.

Step 4 Install Furring Strips

To create a flat surface for the steel panels, attach furring strips or battens vertically on the roof, spaced according to the manufacturer’s recommendations. These strips provide space for ventilation and help secure the steel panels.

Step 5 Lay Down Steel Panels

Starting from the bottom edge of the roof, lay the steel panels over the furring strips, working your way to the top. Ensure the panels overlap according to the manufacturer’s guidelines to prevent water infiltration. Use appropriate fasteners to secure the panels to the furring strips, following the installation instructions closely.

Step 6 Ridge Cap and Finishing Touches

Install a ridge cap along the peak of the roof to protect the seam where the two sides meet. Additionally, check for any flashing requirements around chimneys, vents, and other roof penetrations to ensure a watertight seal.

Maintenance Tips

Steel roofing requires minimal maintenance, but regular inspections can prolong its lifespan. Look for signs of wear, such as loose fasteners or rust. Clean the roof periodically to remove debris, as accumulated leaves or branches can trap moisture and lead to corrosion.

Conclusion

Installing steel roofing over asphalt shingles presents an efficient and beneficial option for homeowners looking to upgrade their roofing systems. With its numerous advantages, including durability, energy efficiency, and cost-effectiveness, steel roofing is an excellent investment. By following the guidance provided in this article, you can ensure a successful installation that enhances the longevity and performance of your home’s roof. Before starting, always consider consulting with a professional to ensure all aspects of the installation meet safety standards and best practices.