Figure 27 and 29, heads and jambs are shown, and in Figure 28 a jamb and sill are shown. When the 

 wall is built as shown in Figure 27 and 28, the plaster on the outside face of the st id is backed up before 

 the lathing is attached to the inside face of the stud. The two sources of cracks in this construction r are 



92 



FIGURE 28. 



unequal settlement of the foundation and shrinkage of the wood frame. If the footings are carefully de- 

 signed and the details shown are used, both of these dangers are avoided. Where wooden sheathing is 



FIGURE 29 



used it is advisable to apply a layer of water proof paper before applying the lath. The furring strips 

 should not be more than y*" thick so that the mortar will be pushed through the lath to the paper, 

 thereby completely embedding the lath. 



Ceilings should be furred with small angles or channels not over 12 inches on centers and lathed with 

 diamond mesh Steelcrete Expanded Metal lath, securely wired or clamped to the supporting angles or 

 channels. These supporting members should be firmly clamped tc the bottom flanges of the steel beams 

 if the ceiling comes directly under steel beams supporting the floor or roof above. If concrete beams are 

 used, furring clips or hangers should he set in place on the centering and concreted into the beams. If 

 the ceiling is to be suspended below t.ie floor or roof above, it should first be furred with 2-inch or 3-inch 

 angle or channel purlins not over 4 .feet or 5 feet on centers, supported by hangers securely clamped to 

 the beams above or hung from rods or bars and concreted into the beams or slabs of the floor or roof 

 above and spaced not more than 4 feet or 5 feet apart. Supports for ceilings to carry the weight of the 

 ceiling only should be designed for from 10 to 12 pounds per square foot, while if workmen are to 

 have access to the space above the ceiling, they should be designed for from 25 to 40 pounds per square 

 foot. It is sometimes convenient to frame for ceilings with small ctrucfural beams or channels 4 feet or 5 

 feet on centers framed into the bottom choids of the roof trusses 



Specifications 

 for Steelcrete 

 Expanded 

 Metal Lath 

 and Plaster 

 Ceilings. 



