The roofing layer that does more than you think
November 6, 2026 at 1:00 a.m.By Emma Peterson.
Roofnado™ provides enhanced deck protection, weather resistance and jobsite performance.
If you haven’t heard of Roofnado®, I promise it’s not a tornado of roofing materials. In fact, it’s an underlayment that helps defend homes against extreme weather events! Developed by Sentry Building Innovations, Roofnado is a synthetic underlayment product that takes protection to the next level. It not only provides a critical water-control layer that defends structures from the worst weather, but it also protects the deck during installation, making job site conditions safer and more efficient. To learn more about this innovative product, we asked Bob Woykin, the director of sales for Sentry’s Canadian market, a few questions about Roofnado:
How would you explain Roofnado to a contractor in 30 seconds on a jobsite?
Roofnado is your water-control layer. Shingles shed water — but this is what protects your deck when things go sideways. It holds up to all weather conditions, and gives you control over the job from start to finish.
What is the narrative you think matters most about the importance of Roofnado and underlayments in general?
The narrative shift is this: People think of underlayment as the backup — in reality it’s the critical water-control layer. It’s the layer that determines whether a roof system actually performs when it’s tested. Once people start thinking about it that way, everything changes.
How do you see the conversation around roofing systems evolving over the next few years? Where does water control fit into that?
The industry is moving toward full system thinking. Not just products, but how everything works together. Water control is going to be at the center of that conversation. As weather becomes more unpredictable and expectations for performance increase, contractors and specifiers will start prioritizing the layers that actually manage risk. And that puts quality underlayments – like Roofnado – right at the center of the roofing system.
Learn more about Sentry Building Innovations in their Coffee Shop Directory or on sentrybuilding.com.
About the author
Emma is the senior content developer at The Coffee Shops and AskARoofer™. When she's not working or overthinking everything a little bit, she enjoys watching movies with friends, attending concerts and trying to cook new recipes.




















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