The GW296 Internal Corner is used where a straight horizontal cavity tray system is required to change direction around an internal corner.   Locating ribs ensure a positive overlap while the attached mastic tape creates a tight bonded seal. The GW296 External Corner tray can also be supplied with short, standard or long lead stapled and sealed to the tray in either code 4 or code 5 (special order). Dimensions Length: 265mm x 265mm Height: 155mm