At Sentry, we believe that our greatest strength lies in the people who drive our success — our dedicated employees, trusted partners and valued customers. From the hands that design and manufacture our products to the teams that ensure they reach job sites across the U.S. and Canada, people are at the heart of everything we do.

Our commitment to innovation, quality and service stems from the passion and expertise of our team. We foster a culture where creativity thrives, and collaboration fuels progress. Every idea, every effort and every achievement is a testament to the power of working together to shape the future of the building industry.

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Take control with Roofnado™

Roofnado™ is not just underlayment — it’s the roof’s critical water-control layer. Engineered for North American climates, Roofnado protects the deck, reduces risk during install, and defends the structure when the weather pushes systems to their limits.

The Roofnado™ line is built to support real-world crews, real schedules and real jobsite conditions. From faster roll-out and secure footing to dependable performance across extreme heat, cold and storms, Roofnado is designed to keep projects moving and roofs protected from start to finish.

Manufactured using advanced production technology and backed by deep waterproofing expertise, Roofnado™ delivers consistent quality you can rely on job after job.
 

Discover the Roofnado™ family of products.

• AnchorDeck ™
• StormTread ® XW
• StormTread ®
• AnchorDeck ™ PSU
• LapLock ™ PSU HT
• LapLock ™ HD60

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Sahara™  Breathable Synthetic Roof Underlayment

Breathable synthetic underlayments like Sahara AnchorDeck and Sahara BU30 represent a major advancement in roofing performance by managing moisture at the source. Powered by DYRZA™ Smart Nano Technology, these systems are engineered to allow moisture vapor to escape from within the roof assembly while maintaining a durable, water-resistant barrier on the exterior. Breathability is a critical component of modern roofing because trapped moisture can silently compromise the integrity of the entire assembly over time.

Sahara AnchorDeck delivers a lightweight, multi-layer solution with strong waterproofing protection and breathability comparable to traditional felt, making it an ideal choice for standard residential applications. Sahara BU30 builds on that performance with a heavier, premium construction designed for increased durability, longer exposure capability and enhanced jobsite performance. Both products feature slip-resistant walking surfaces for improved safety and are compatible with a wide range of roofing systems—from asphalt shingles to metal and tile—giving contractors a reliable, high-performance underlayment that protects the roof from the inside out.

Discover our Sahara™ breathable UDLs

Sahara™ Weather Resistive Barriers

Breathable building envelope products like Sahara Evo and Sahara Excel are designed to elevate moisture management beyond traditional house wraps. Using the same DYRZA™ Smart Nano Technology as the UDLs, these advanced weather-resistant barriers allow moisture vapor to escape while maintaining a strong air and water barrier on the exterior. 

Sahara™ Evo is a reliable, breathable weather-resistive barrier engineered for contractors and homeowners who want solid protection without paying a premium. Sahara™ Evo is built tough to handle the rough and tumble of busy job sites. Whether you’re wrapping a cottage in California, a ranch in Alberta or a multi-unit build in Texas, Evo is up to the task—resisting tears, handling extended UV exposure and standing strong through unpredictable weather.

Sahara™ Excel is built to handle harsh job sites, unpredictable weather and extended construction timelines—performing reliably in all climate zones. It helps create a drier, more resilient building envelope by blocking water intrusion while allowing internal moisture to escape. With extended UV protection and rugged construction, Sahara™ Excel delivers lasting performance and peace of mind from installation through the life of the building.

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Spyder® PSU The Ultimate Sand Replacement Peel and Stick

Introducing Spyder® PSU, a self-adhered roofing underlayment for sloped roofs. Featuring a patented (pending) mechanical slip-resistant surface, Spyder® PSU ensures superior walkability on steep slopes. It offers unmatched protection from ice dams, snow, storms, hail and wind-driven water. Its lightweight, smooth design speeds up installation and delivers exceptional waterproofing. Unlike granular or mineral sand-coated underlayments, Spyder® PSU eliminates the potential weak points where water can seep through, providing enhanced protection for your roof and the interior of your building.

Spyder® PSU is a self-adhering underlayment designed as a secondary water barrier for sloped roof applications. Spyder® PSU is designed for use under asphalt shingles, *concrete or clay tiles, synthetic shingles and wood shakes/shingles.

Learn how Spyder® PSU can protect your roof.

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Take control with Roofnado™

Underlayments play a critical role in water-control during construction and for the lifespan of the roof. That’s why you want to use a high-performance underlayment like Roofnado™ that ensures the roof performs in a variety of ways, including: Secure in the face of the elements: Manufactured using advanced production technology ...
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Take control with Roofnado™

Underlayments play a critical role in water-control during construction and for the lifespan of the roof. That’s why you want to use a high-performance underlayment like Roofnado™ that ensures the roof performs in a variety of ways, including: Secure in the face of the elements: Manufactured using advanced production technology ...
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Underlayments play a critical role in water-control during construction and for the lifespan of the roof. That’s why you want to use a high-performance underlayment like Roofnado™ that ensures the roof performs in a variety of ways, including: Secure in the face of the elements: Manufactured using advanced production technology ...
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