When most homeowners think about their roof, shingles or tiles usually come to mind. But the real hero lies hidden beneath, the underlayment. Acting as the last line of defense between your home and the Arizona elements, underlayment determines how well your roof withstands scorching summers, sudden storms, and years of wear. Choosing the wrong one can shorten the life of your roof, while the right choice can add decades of protection. So, how do you know how to choose the best roof underlayment for your home in Arizona? Let’s break it down.
What Exactly Is Roof Underlayment?
Roof underlayment is a protective layer installed between the roof decking and the outer material, such as shingles or tiles. It helps prevent water intrusion, adds fire resistance, and improves the overall durability of your roof. In Arizona’s desert climate, where extreme heat and sudden rainstorms test every layer of your roof, the underlayment often makes the difference between a roof that lasts and one that fails early.
What Types of Roof Underlayment Are Available?
There are three main categories of underlayment:
- Felt Underlayment: The traditional option, also known as tar paper. It’s affordable but less resistant to heat and moisture, which often is not the best for Phoenix homes.
- Synthetic Underlayment: Made from polymers, this lightweight material offers superior water resistance and durability. It’s resistant to tearing and performs well under extreme heat.
- Rubberized Asphalt Underlayment: Premium choice that provides excellent waterproofing. With adhesive backing and flexibility, it seals tightly against nails and fasteners, making it a favorite for tile roofing systems.
Which One Works Best in Arizona?
In Phoenix and other Arizona cities, synthetic and rubberized asphalt underlayments generally perform better than traditional felt. Synthetic underlayments withstand high temperatures without drying out, while rubberized asphalt delivers unmatched water resistance during monsoons. If you’re investing in a tile roof, a popular option here, the durability of rubberized asphalt is especially valuable, as it provides long-lasting protection beneath heavy materials.
How Long Does Roof Underlayment Last?
The lifespan depends on the type you choose. Felt underlayments may last 15–20 years, while high-quality synthetic or rubberized asphalt can last 30–40 years. Since most Arizona roofs face faster wear from UV rays and storms, selecting a longer-lasting material ensures you won’t face premature roof failures.
How Do I Know Which Underlayment Is Right for My Roof?
The best choice depends on your roofing system, budget, and long-term goals. Asphalt shingles often pair well with synthetic underlayments, while tile or metal roofs benefit from rubberized asphalt. At Stonecreek Roofing, we ensure the right match for your home’s needs. We guide homeowners through every option, helping you balance performance, cost, and longevity.
Why the Right Underlayment Matters
Your roof is only as strong as its weakest layer. Even the most expensive tiles or shingles can’t protect your home if the underlayment fails. By learning how to choose the best roof underlayment, you’re investing in more than just materials. You’re investing in peace of mind that your roof can handle Arizona’s toughest conditions.
Conclusion
Underlayment may be out of sight, but it should never be out of mind. Choosing the right type, especially in Arizona’s extreme climate, ensures your roof performs reliably for decades.
At Stonecreek Roofing, we specialize in helping homeowners select and install underlayments built to withstand desert heat, monsoon rains, and everything in between. If you’re ready to upgrade your roofing system, contact us today and let us help you choose the underlayment that keeps your home protected for years to come.