Stucco In the preceding pages have been shown, in 



and How. fairly good detail, various methods for using 



Steelcrete Expanded Metal lathing in the 

 construction of ceilings, partitions, and interior 

 fireproofing generally. It should be said that 

 like all other first-class materials, this must 

 be used correctly; in other words, with in- 

 telligence. By its use there has been devel- 

 oped a specific trade, involving a scientific study 

 of the subject. It cannot be put on ' 'any old way. ' ' 

 As a lathing material, which is its simplest use, it 

 may be said that there is a right and a wrong way 

 of putting on the sheet to receive mortar. By refer- 

 ence to Figures 20 and 21, pages 93 and 94, this 

 fact will be noticed. On a side wall, for instance, 

 lathing should always be put up as shown by these 

 illustrations; that is, fibres of the metal should 

 point up and outward. On the ceilings the sheets 

 should always be put on one way, so that the plas- 

 terer may begin at the proper side of the area to 

 accomplish his work. 



Figure 36 s an illustration of the method of 

 applying cement plaster and Steelcrete Expanded 

 Metal lath to a building sheathed with rough 

 boarding. The two sources of cracks in this con- 

 struction are unequal settlement of the foundations 

 and shrinkage of the wood frame. These diffi- 

 culties are overcome first by having the footings 

 carefully designed, and second by stapling % -\nc\i 

 round iron rods in a vertical position as shown, 

 spaced twelve inches centers, to the boarding. 

 Outside of these rods staple Steelcrete Expanded 

 Metal lath. 



For stucco work use the best Portland cement 

 and sand that is clean, coarse and sharp. For the 

 scratch coat add to the above lime putty with 

 long cattle hair or fibre worked well together. 



FIGURE 36 



100 



