WEIGHT OF ROOF TRUSSES 



30 40 50 60 70 80 



Length of Span of Truss, L, in feet. 



90 



100 



FIG. 3. WEIGHT OF ROOF TRUSSES PER SQUARE FOOT OF HORIZONTAL 

 PROJECTION FOR A CAPACITY OF 40 LBS. PER SQUARE FOOT. 



by skinning the sections it is possible to materially reduce the weights. 

 Weight of Simple Roof Trusses. Simple roof trusses supported 



TABLE I. 



WEIGHT OF FINK TRUSSES, SUPPORTED *ON MASONRY WALLS, DE- 

 SIGNED FOR A VERTICAL LOAD OF 40 POUNDS PER SQUARE FOOT OF 

 HORIZONTAL PROJECTION OF ROOF. 



