With heat advisories sweeping across much of North America, roofing systems are once again in the spotlight. As the first line of defense against extreme sun and storms, poorly maintained roofs are prone to curling, cracking, and leaks—posing serious risks to both structure and comfort.

To meet the demands of increasingly harsh summer conditions, more contractors and roofing companies are turning to synthetic roof underlayment. Products like Mountain Bigfoot Barrier are leading the shift, offering unmatched performance in high temperatures, withstanding deformation, and delivering superior waterproofing and breathability.

Tests show that Mountain Bigfoot Barrier can endure rooftop temperatures exceeding 90°C (194°F) without melting, warping, or losing its integrity. Its advanced waterproof layer keeps roof decks dry even during heavy summer downpours, protecting buildings from long-term moisture damage.

What sets it apart further is its breathability. The material allows moisture to escape while resisting heat buildup—reducing the risk of mold or rot. Lightweight and easy to install, it also shortens labor time and improves safety under scorching conditions.

“Traditional felt tends to soften and deform under prolonged sun exposure,” says a roofing contractor in Arizona. “Synthetic underlayment like Bigfoot Barrier handles the heat and provides consistent protection.”

As climate change pushes summer temperatures to new extremes, durable and weather-resistant materials are no longer a luxury—they’re a necessity. With its “heat-resistant, waterproof, breathable, and lightweight” advantages, synthetic underlayment is becoming the go-to choice for modern roof protection—offering reliable performance for both residential and commercial properties.