GLAZING AND PAINTING 



111 



figure on three points for each pane. An 

 average of five of the small single points will 

 be required for each pane. 



Fig. 64. Glazing with single glazing points 



Precautions. All sheet glass is slightly 

 curved, a condition caused by the process of 

 manufacture. When seconds or B grade 

 glass is used, it will sometimes be found that 

 the panes will be so much curved as to make 



