As extreme weather events become increasingly common, roofing systems demand more reliable base-layer protection. With outstanding thermal and dimensional stability, synthetic underlayment like MOUNTAIN BIGFOOT BARRIER™ is emerging as a top-tier solution, offering builders and roofing contractors a more durable and professional installation experience.

Built for Extreme Temperatures – Stability That Lasts

Through both lab tests and real-world applications, MOUNTAIN BIGFOOT BARRIER has demonstrated exceptional temperature resistance:

• Excellent Cold Resistance: Remains flexible at temperatures as low as -40°C, without becoming brittle or cracking.

•  
• 
•  

• Heat-Resistant and Stable: Withstands prolonged exposure to 80°C–90°C heat without melting, flowing, or distorting.

•  
• 
•  

This dual-temperature stability ensures that MOUNTAIN BIGFOOT BARRIER maintains its protective performance in both freezing northern climates and scorching southern heat zones.

Material Innovation for Dimensional Reliability

Compared to traditional asphalt felt, the synthetic material used in MOUNTAIN BIGFOOT BARRIER features minimal thermal expansion and contraction. Even under constant temperature fluctuations, the material maintains its shape and integrity—effectively preventing:

• Wrinkling or bubbling

•  
• 
•  

• Warping or curling edges

•  
• 
•  

• Uneven surfaces that can compromise waterproofing

•  
• 
•  

“Our design process focused heavily on how temperature changes can affect installation quality,” said the Product Director. “MOUNTAIN BIGFOOT BARRIER™ helps contractors avoid rework caused by material distortion, improving both efficiency and structural reliability.”

Built to Protect High-Performance Projects

From frigid mountain homes to sun-drenched commercial developments, MOUNTAIN BIGFOOT BARRIER’s thermal and dimensional stability makes it a trusted solution for complex roofing challenges. It not only shields roofs from environmental stress but also strengthens the long-term durability of the entire building system.