Do Asphalt Shingles Work with Solar Panels? What Arizona Homeowners Need to Know

Can You Install Solar Panels on Asphalt Shingles?

With Arizona’s abundant sunshine, many homeowners are investing in solar energy to reduce electricity bills and increase energy efficiency. But one of the biggest concerns is whether their existing asphalt shingle roof can support solar panels.

The good news? Yes, solar panels can be installed on asphalt shingles, but roof age, material quality, and installation methods all affect durability and long-term performance.

This guide covers how asphalt shingles work with solar panels, best installation practices, and whether an asphalt shingle roof is the best option for solar energy in Arizona.

Are Asphalt Shingles Strong Enough to Support Solar Panels?

Asphalt shingles are the most common roofing material for residential solar installations, but not all shingle types are equally durable under solar panel mounting systems.

Best Shingles for Solar Panels in Arizona

• Architectural and luxury shingles are best for solar panel installations because they are thicker, more durable, and last longer.
• 3-tab shingles are more fragile and may not hold up as well under the weight of solar panels over time.

For more on shingle durability, visit: Best Asphalt Shingles for Arizona Homes

How Roof Age Affects Solar Panel Installation

If your asphalt shingle roof is older than 10-15 years, it may not be ideal for solar installation. Since solar panels last 25+ years, the roof should be able to last at least that long to avoid premature replacement.

When to Replace Your Roof Before Installing Solar Panels:

✔ Your roof is over 15 years old.
✔ Your shingles are cracked, curling, or losing granules.
✔ You’ve already had multiple roof repairs due to leaks or wind damage.

When Solar Panels Can Be Installed on an Existing Roof:

✔ The roof is in good condition with no visible damage.
✔ The shingles are high-quality architectural or luxury-grade.
✔ The roof has at least 15-20 years of life left.

For signs that your roof may need replacement, visit: How Long Do Asphalt Shingles Last in Arizona?

How Solar Panels Are Installed on Asphalt Shingles

Solar panels must be securely attached without compromising the integrity of the shingles.

Common Solar Panel Mounting Methods:

1. Roof-Penetrating Racking (Most Common for Asphalt Shingles)
   • Flashed mounts are drilled into the roof’s structure to secure the panels.
   • Flashing prevents leaks and protects against water damage.
2. Ballasted Systems (No Roof Penetration, but Not Ideal for Steep Roofs)
   • Panels are held in place by weighted racks rather than being bolted down.
   • Less common on shingle roofs due to potential shifting in strong winds.
3. Integrated Solar Roofing (Solar Shingles & Tiles)
   • Instead of panels, solar shingles replace traditional asphalt shingles.
   • Aesthetic and energy-efficient, but more expensive than standard solar panels.

For solar-ready roofing options, visit: The Most Durable Roofing Materials for Arizona

Pros & Cons of Installing Solar Panels on Asphalt Shingles

Pros:

✔ Most affordable roofing material for solar installation.
✔ Easy to install flashing-mounted racking systems.
✔ Compatible with most solar panel brands and installers.
✔ Works well with high-quality architectural and luxury shingles.

Cons:

❌ Older asphalt shingle roofs may need replacement first.
❌ Solar panels make future roof replacements more complicated.
❌ 3-tab shingles are less durable and may not last as long under panels.

What Are the Best Alternatives to Asphalt Shingles for Solar Panels?

If you are replacing your roof before installing solar, you may want to consider other roofing materials that offer better durability and longer lifespans.

For a comparison, visit: Asphalt Shingles vs. Metal Roofing: Which is Better for Arizona?

How to Prepare Your Asphalt Shingle Roof for Solar Panels

1. Get a Roof Inspection Before Installing Solar

• A professional roofing contractor can assess your shingles’ condition before solar panel installation.
• If your roof is nearing the end of its lifespan, replacing it before solar panel installation is recommended.

2. Choose High-Quality, Impact-Resistant Shingles

• Architectural or luxury shingles are more durable than 3-tab shingles.
• Look for Class 4 impact-resistant shingles if hail is a concern.

3. Work with Experienced Solar Installers

• Solar panels must be mounted properly to prevent roof leaks.
• Flashing and sealants should be used around all mounting points.

For expert roofing services, visit: How to Choose the Best Roofing Contractor in Arizona

Final Thoughts: Should You Install Solar Panels on Asphalt Shingles?

Yes, asphalt shingles can support solar panels, but roof age and shingle quality matter.

✔ If your roof is under 10 years old and in good condition, it can support solar panels without issue.
✔ If your roof is 15+ years old, replacing it before solar installation is the best long-term solution.
✔ Upgrading to architectural or luxury shingles ensures better durability and longevity for a solar-ready roof.

If you’re unsure about your roof’s condition, schedule a professional inspection before going solar.

Next Steps: Get a Roof & Solar Consultation in Arizona

Planning to install solar panels on your asphalt shingle roof? Contact a trusted Arizona roofing expert for an inspection before installation.

For further reading, explore:

• How Long Do Asphalt Shingles Last in Arizona?
• The Most Durable Roofing Materials for Solar Panels
• How Energy-Efficient Roofing Lowers Cooling Costs?

For additional industry insights, check out:

• U.S. Department of Energy – Solar Panel Installation Guide
• Solar Energy Industries Association – Roofing & Solar Compatibility
• National Roofing Contractors Association – Roofing & Solar Panel Best Practices