Labels:bulletin board | crt screen | hakham | monitor | plant | windowpane OCR: Understanding the UL Fire Resistance Directories psum Board: Gypsum panels with beveled, square of tapered edges For single layer systems gypsum panels applied vertically with joints centered over studs. For single laver systems (constructed with 1/2 in thick board) gypsum panels applied vertically horizontally with vertical ioints centered Orer studs. For two layer system.s gypsum panels be applied vertically with ioints centered over studs and staggered one stud cavity on opposite sides 01 studs. Outer laver gypsum panels may applied vertically horizontally systems constructed with 1/2 in thick board. Vertical joints in adjacent lavers staggered one stud cavity. For three and four laver systems inner lavers he applied vertically with joints centered over studs and staggered one stud cavi ...
