CEMCO FAS J-TRACK has longer legs than standard J-Runner to provide greater deflection at the head-of-wall joint. FAS J-TRACK provides 3/4” overall unencumbered movement providing the best possible L-Rating (smoke) for 1 and 2-hour fire ratings. FAS J-TRACK also eliminates the installation of fire caulking or additional drywall rips. FAS J-TRACK is manufactured in 33 mil thick G40 hot-dipped galvanized steel. G60 and G90 are available only upon special request and will require extended lead-times.
View the installation video: https://youtu.be/nbvEma9duD8