Expanding Spray-On Waterproof Roof Coating

Fast Application
Self-Healing
Impact Resistant
Up to 50-Year Warranty

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Traditional roofing sealants take days of difficult work to apply and leave too much room for error. Expandothane™ offers a better way. Proven to withstand UV damage, hail, and extreme weather, the Expandothane Roofing System uses a high-pressure spray-on application for fast, easy and long-term waterproofing.

Hail Resistant

UV Protection

Water-Proof

Fast Application

Complete your job in a single application using a

high-pressure spray that dries in seconds.

Hail-Proof

Proven to withstand hail and extreme weather with no signs of breaking, cracking or leaks.

Up to 50-years

of warranty

Expandothane has zero water content and a failure-free track record since it was introduced in 2004.

Save Time, Hassle and Money With the Ultimate

Waterproof Barrier

This amazing formula contains micro blowing agents that create a tough yet flexible waterproof barrier to completely eliminate leaks. Unlike standard polyurea, this VOC-free plural component hybrid expands up to seven times its volume to span gaps and fill any holes.

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