DIVISION B. 

 SOME POINTERS ON ROOF FRAMING, 



No matter what people may say to the con- 

 trary, there is no method or methods that hu> 

 ever been devised that is so effective in roof 

 framing, or results so rapidly achieved, as those 

 which are obtained by the use of the steel square. 

 I hdve shown in some of the earlier pages of this 

 vork how rapidly the length, and bevels of any 

 common rafter may be obtained by the simple 

 application of the square, any determined num- 

 ber of times. Thus for a building of, say, 30 

 ft. in width, which is to have a roof of any 

 given pitch, we -arrange the pitch as I have 

 shown, with so many inches on the blade for the 

 run, and so many on the tongue for the rise. 

 This settled, we apply the square fifteen times 

 to the rafter, 15 being half of the width of 

 the building. This then gives the length of the 

 rafter, and a line drawn along the edge of the 

 tongue of the square will give the proper bevel 

 for the top or plumb cut. If there is to be a 

 ridge board on the roof, then half the thickness 

 of such board must be measured back on the 

 line drawn, and the rafter must be cut at that 

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