Johnson Level & Tool Mfg. RAS-1 User Manual

Page 37

FIG. 20 A Rafter Support Structure for Solar Panels.

Now find the support rafter rise and run by using the

tables somewhat in reverse from the way you have done

so far. First find the proper table for your support rafter

inch rise and locate your length under the common rafter

length column (note: you may have to refer to both the

Run (ft.) column plus the Run (inch) column in referring to

the correct length). In our example we need a 50" or 4' 2"