BUILDING THE RANGE 79 



A good grade of putty is laid evenly and smoothly on the 

 rabbets of the sash-bars. Expert glaziers will lay this very 

 rapidly by taking the putty in each hand and rolling it 

 along either side of the sash-bar. After a little practice in 

 handling putty, there will be no trouble with its sticking 

 to the hands. In laying glass it is always better to begin 

 at the eaves and lay the first row across the roof. By 

 doing this, the sash-bars are kept correctly spaced. The 

 glass is laid with the bevel side up, so the moisture which 

 accumulates on the interior of the glass will be drained 

 towards the sash-bars, where there are special drip-grooves 

 to receive it. To avoid slipping, care must be taken that 

 this first row of glass be held firmly at the lower edge. If 

 wooden eave-plates are used, number seven, three-quarter- 

 inch brads are driven firmly into it, in a straight line, and 

 the lower edges of the glass rest against these brads. If 

 metal eave-plates are used, the brads are driven into each 

 side of the sash-bar and sufficiently low so that when the 

 glass is in place, each corner will rest against the brads 

 and slipping will be prevented. It is better to drive these 

 basal brads into place before the putty is laid. By doing 

 this, the lower edge of the glass is brought to an even line. 

 After the first row of glass is laid, more brads are driven 

 into place on either sash-bar, about a half-inch above the 

 lower edge of glass. Pressure should be put on the glass 

 so that all surplus putty may be squeezed out, and the 

 glass brought firmly in contact with the sash-bar. If the 

 glass is large, a second brad is driven in firmly one-eighth 

 of an inch from the top. This allows a lap of one-eighth 

 of an inch between panes of glass, which is sufficient to 

 exclude all air and water. If a wider lap is made, dirt and 

 soot will collect and the light conditions in the houses 

 will not be of the best. 



