Flexible control joint for use in wall and ceiling design to control movement. Has removable tape to protect "V" groove during installation. Flanges have holes to ensure positive bond of drywall mud to surface of board. Has built-in 1/l6" (2 mm) stops to ensure proper drywall thickness. Flanges are placed on top of two separated sheets of sheathing with "V" groove placed between separated board.
WARNING:Cancer and Reproductive Harm - www.P65Warnings.ca.gov