Dennis Vowles - On Guard: Protecting Roofs with Garrdal

In this episode of Roofing Road Trips, Karen Edwards chats with Dennis Vowles, founder of Garrdal, about how his background as a contractor led to the creation of an innovative two-piece pipe flashing solution. Designed to solve long-standing installation and repair challenges, Garrdal flashings are made from durable, UV-resistant materials and can be installed without disturbing surrounding shingles. Dennis shares how the product came to life, its growth across North America, and why it’s become a go-to for contractors facing tricky roof penetrations. Learn how one roofer’s frustration turned into a nationwide solution that’s protecting roofs and simplifying repairs.

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