182 



FRAMEWORK 



translucent fabric. The glazed leg of the roof is made to face the 

 north, thus giving a constant and agreeable light and doing away with 

 the use of window shades. 



The principal difficulty in saw tooth roof construction is in obtain- 



^V j V^ 



(a ) 50 Ft. Span 



(b) 40 Ft- Span 



(c) 50 Ft- Spar 



(d ) 60 Ft Span 



(e) 80 Ft Span 



(f) Modified Fink 



( h ) Howe 



f j ) Pratt 



(g) Cambered Fink 



FINK TRUSSES 



(i) Hybrid 



( k ) Modified Pratt 



( I ) Quodranqylor (m) Cornels Bock 



FIG. 83. TYPES OF ROOF TRUSSES. 



