FLASHING 



233 



113). Ridge roll is fastened with rivets or nails spaced 6 to 8 inches 

 apart. 



Flashing. Flashing is used where the roof changes slope, around 

 chimneys and openings in the roof, and over windows and doors, and 

 should be of sufficient dimensions and so arranged that at least 3 inches 

 vertical height is obtained between the edge of the flashing and the 

 end of the corrugated steel roofing. Vertical and horizontal seams of 

 all flashing should be closely riveted. Flashing is made from flat sheets 



8-". 



(0 





HALF-ROUND GUTTER; LAP JOINT OR SLIP JOINT. 



(d) 



EAVES TROUGH HANGERS 

 FIG. 114. 



