FortiFlash Butyl is made with advanced adhesive so it can be installed in temperatures as low as 25° F and can withstand extreme temperatures up to 250° F. It is compatible with most sealants and the split-back release liner allows for easy integration with weather-resistive barriers. When used as part of the Henry 1-2-3 Moisture Control System™, FortiFlash Butyl backed by an industry-leading 15-year warranty. Repairs are covered for both materials and labor with a single point of contact.