18 



STEEL ROOF TRUSSES AND MILL BUILDINGS. 



CHAP. I. 



. 25'0'C.tcC.of Trusses NEWS. 



Half Transverse Section. 

 FIG. 12. ROOF TRUSS AND TRANSVERSE BENT SHOWING TRANSVERSE BRACING. 



I 



Section fl-B 

 FIG. 13. DETAILS OF A ROOF COVERED WITH LUDOWICI TILE. 



