FRAMEWORK 



spacing of about 16 feet ; the shop cost of the trusses per pound being 

 several times that of the purlins. Local conditions and requirements 



Glass or Louvres 



(a) 



Ce) 



<- Glass 



-Glass or Louvres 



(b) 



(c) 



id) 



(f) 



(q) 



FIG. 88. TYPES OF TRANSVERSE BENTS. 



