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The dry, unrelenting Arizona heat means your roof needs special considerations. While you should always choose the right shingles for your roof, the roof underlayment also makes a big difference. Failing to give your underlayment the same level of attention could have serious consequences.

At Polaris Roofing Systems, our expert roofers can walk you through the process of choosing the right roof underlayment to protect your home from extreme weather. Give us a call today at (928) 699-4840 to schedule a free inspection.

Why Is Roof Underlayment Important in Arizona?

why a roof underlayment is important

Arizona has a unique climate characterized by extreme heat and dry air. However, the monsoon season can bring heavy winds, humidity, and rainfall. All of this takes a toll on your roof.

Roof underlayment is a protective layer of material under your roof shingles. It’s designed to insulate your house against the elements and keep water from getting into your home during the rainy season.

Select a roof underlayment with comparable quality to your roofing system to improve the lifespan of your roof. Look for an underlayment with water-resistant properties that wick away moisture to keep water from pooling and damaging the underside of your roof tiles or shingles.

Ultimately, roof underlayment protects your home from the weather, regulates indoor temperatures, and protects your roof investment. 

Important Considerations for Choosing Underlayment

The climate plays a big role in the type of underlayment you select. Since roofing systems are expensive, you’ll want to pick an underlayment that will last for decades, even in extreme weather conditions.

There are several other important factors you should consider when choosing a roof underlayment:

  • Different types of roofing material require different underlayments. You’ll want a watertight underlayment with the tile roofing typically used in Arizona. If you have GAF lifetime roofing, underlayment is often included.
  • Consider the tear resistance of your underlayment. High winds and UV damage can cause rips or cracks in the underlayment material. Protect your home by choosing something durable enough to handle these concerns. 
  • Another important consideration is the chemical composition of the underlayment. Some underlayments, such as asphalt felt, are made with unstable chemicals. When these chemicals break down, the quality of the underlayment suffers.
  • Cost is another critical factor in selecting an underlayment. Look at your budget and weigh the pros and cons of each option to find an underlayment that fits your needs.

The Best Underlayment Options for Arizona Homes

With so many underlayment types available, you’ll have much to consider. We can help you determine the right underlayment for your home.

Here are some of the most popular roof underlayments on the market today:

  • Synthetic underlayment is highly recommended for many reasons. It’s made with lightweight materials, so it’s easy to install. Synthetic underlayment is durable, resilient, and UV resistant, making it a great option for the harsh Arizona weather.
  • Rubberized asphalt underlayment holds up well under heavy rains and offers great heat resistance. It’s a more expensive option, but it delivers a 100% waterproof seal. Asphalt is also incredibly durable, allowing it to handle the heavy weight of tile shingles.
  • Asphalt felt underlayment is an inexpensive option that provides water resistance and durability. It’s a heavier material than some of the other underlayment options, so take that into account when choosing felt.
  • For peel-and-stick roofing, an underlayment with fiberglass reinforcement creates a strong, long-lasting seal. This option is puncture resistant, so the quality won’t suffer even after storm damage.

You don’t have to make this decision alone. We can discuss your underlayment options with you and go over the pros and cons of the various types on the market. We’ll take your roofing material and budget into account and offer you our recommendations.

Call the experts at Polaris Roofing Systems at (928) 699-4840 for a free consultation. We’re ready to help you find the right roof underlayment for your home.


Justin Young

Justin Young

Justin young has been in the construction trade for nearly 25 years, focusing on insurance restoration and roofing. While attending Arizona State he worked in new construction custom homes until the opportunity came to get back into restoration and roofing. Roofing came full circle and Justin was promoted to General Manager of a local roofing company. As that progressed he ventured out on his own to start his own company, Polaris Roofing Systems. He prides himself on being on the cutting edge of roofing materials, applications and roof quality. Justin enjoys spending time with his 2 young children and wife. Justin prides himself, his company and continued growth on the people around him and the integrity for which it stands for.

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