CHAPTER XX. 



WALLS AND CONCRETE BUILDINGS. 



SIDE WALLS. The sides of steel frame mill buildings are cov- 

 ered with corrugated steel, expanded metal and plaster, wire lath and 

 plaster, or with Ferroinclave a patent covering made of special corrug- 

 ated steel and plaster, manufactured by the Brown Hoisting Co., Cleve- 

 land, Ohio. 



Corrugated Steel. The methods of fastening corrugated steel to 

 the sides of buildings are the same as on the roof and are described 

 in detail in Chapter XVIII. Where warmth is desired, buildings cov- 

 ered with corrugated steel are often lined with No. 26 corrugated steel 

 with I y^ -inch corrugations . Where this lining is used spiking pieces 

 should be bolted to the girts and intermediate spiking pieces should be 

 placed between the girts to which to nail the lining. If this is not done 

 the corrugated steel will gape open for the reason that it is impossible 

 to rivet the side laps of the lining. Where anti-condensation lining is 

 used on the sides it is made the same as on the roof except that the 

 girts should always be placed not more than one-half the usual distance. 

 The clinch-nail fastening is the best method for fastening the corrug- 

 ated steel where the anti-condensation lining is used. 



Expanded Metal and Plaster. The methods of making walls of 

 expanded metal and plaster are shown in Fig. 131 and Fig. 132, which 

 show details of the construction of the soap factory buildings of W. H. 

 Walker, Pittsburg, Pa. These buildings were constructed as follows: 

 The buildings were made with a self-supporting steel frame, all con- 

 nections except those for the purlins and girts being riveted. Inacces- 

 sible surfaces were painted with red lead and linseed oil before erection 

 and the entire framework was painted two coats of graphite paint after 



