How Warm Weather Affects Flat Roofs

The extreme heat and weather in Arizona can take a toll on flat roofs. Without the proper maintenance and care, a flat roof can quickly deteriorate and become damaged. 

Mostly, Arizona residents are familiar with the types of damage that can come from high heat. However, they do not know precisely how this affects their home. The heat of Arizona is intense, and though rainstorms are infrequent, heat and water are bad news for your roof.

So, how exactly is your flat roof affected by the heat? This blog post will discuss how warm weather affects flat roofs in Arizona.

Thermal Movement

Thermal movement refers to the repeated expansion and contraction of a material in response to changes in temperature. Furthermore, thermal movement can be a problem for roofs. The problem comes from the expansion and contraction, which can cause cracking that allows water to penetrate the roof.

Secondly, waterproof materials like single-ply PVC can withstand the effects of thermal movement. Still, traditional roofing materials like felt are not. The heat of an Arizona summer can damage roofs, making them even more vulnerable to the effects of thermal movement.

Ultimately, it’s essential to be aware of the dangers of thermal movement and take steps to protect your roof from potential damage. It is crucial to ensure your roof is inspected and maintained correctly in Arizona.


One problem that can occur with flat roofs is heat damage. When the heat begins to build on the roof, it can cause the felt to lift in a blister-like fashion. 

Additionally, this happens when water and condensation penetrate the top and begin to gather in spots. When the sun hits these moisture spots, the felt can start to detach from the roof in a blister-type fashion. But, if you catch these blisters quickly, you can usually get a roof repair done on the damaged areas. 

However, the longer you wait to make repairs, the bigger the blisters will become, eventually leading to an expensive complete re-roofing project to replace the entire thing.

Therefore, it’s essential to keep an eye out for any signs of roof blistering and to make repairs as soon as possible.


In Arizona, the heat can be intense and relentless. This heat can cause significant damage to roofing materials, causing them to dry out and become brittle. As a result, when faced with high winds or rainstorms, the roofs of homes and businesses are more likely to crack and leak.

In addition to water damage, this can also lead to heat loss from air conditioning systems. So, it is essential to regularly inspect your roof for signs of wear to prevent these problems.

If you notice any dried-out or cracked tiles or shingles, replace them as soon as possible. By taking these simple steps, you can help keep your roof in good condition and protect your home or business from costly repairs.


In Arizona, heat can be a roofing material’s worst enemy. Specifically, prolonged exposure to the sun can cause asphalt shingles to dry out and become brittle. This loss of flexibility makes them more susceptible to high winds and heavy rain damage.

Once cracked, they are likely to leak, exposing the home to water damage. In addition, cooled air from air conditioning can escape through the cracks, leading to higher energy bills. If you notice any cracked or missing shingles, it is vital to have them repaired or replaced as soon as possible.

For flat roofs, regular maintenance is essential to prevent leaks. By taking care of your roof, you can help extend its lifespan and keep your home safe and comfortable.

Interested In a Repairing or Installing a New Roof?

Considering installing or repairing a new roof? Are you looking for the best roofing contractors in Phoenix? Pinnacle Roofing is your group! 

For over 25 years now, we have served the greater Phoenix area and offer only the best services. Our licensed and accredited contractors use only top-of-the-line products and service you to perfection. 

Our experience has shown us that we can only run on our customer’s satisfaction. We pride ourselves on delivering only the best quality service and products to our family of customers.

Get a Quote Today!

Hire Pinnacle Roofing to find roofing experts you can trust. We will provide you with the roof that fits your plan and budget. Even if you do not know what you want at this moment, give us a call. We will help you start the journey to making your home safer and sharper. 

Call (623)-469-9263 today or visit our site for a free estimate!

(623) 792-5497