Understanding Roofing in the Valley: What Every Homeowner Should Know

When it comes to protecting your home, your roof is the first and most important line of defense against Arizona’s heat, monsoons, and dust storms. Choosing the right roofing system—and the right team to install it—makes all the difference in how well your home weathers the years ahead.

At CDL Roofing, we’ve spent more than two decades helping Valley homeowners protect their biggest investment. As a family-owned and operated company, we specialize in tile roof systems, which are common throughout North Scottsdale, Phoenix, and the surrounding communities.

Why Tile Roof Underlayment Matters

Many Arizona homes have tile roofs that still look beautiful decades later. What most homeowners don’t realize is that the tiles themselves aren’t waterproof—they’re designed to protect the real workhorse: the underlayment.

The underlayment is the waterproof barrier beneath your tiles that prevents moisture from reaching your home’s structure. Over time, especially after 20 years of desert heat and monsoon rains, that material can dry out, crack, or deteriorate. Once that happens, water can slip underneath and cause costly leaks or interior damage.

That’s why we always recommend a professional inspection if your tile roof is more than 20 years old. Our team can assess the condition of your underlayment and help you decide if it’s time for a replacement—before small issues turn into major repairs.

The CDL Roofing Difference

Our General Manager, Charles Barr, is HAAG Certified, a credential that signifies advanced training in roofing inspection and damage assessment. This means every CDL inspection is backed by expert insight, ensuring homeowners get accurate information—not guesswork.

We’ve built our reputation on trust, craftsmanship, and service that lasts. Every reroof we complete comes with an industry-leading 20-year warranty, giving you peace of mind that your home is protected for decades to come.

Tile roofs are built to last—but it’s the underlayment beneath that truly protects your home. If your roof is over 20 years old, it might be time for an inspection. CDL Roofing specializes in tile roof systems designed for Arizona homes.

Thinking About Your Roof?

Whether you’re noticing cracked tiles, ceiling stains, or simply know your underlayment is aging, we’re here to help. CDL Roofing offers free roof inspections, detailed photo reports, and clear recommendations—no pressure, no upselling.