Broan 355CSOBR Manual Do Utilizador

9.  Drill a large starting hole for the sabre saw just inside of

the line or the 14" circle.

10. Cut out the roof board(s) inside of the line.

8.  Use the guide hole as a center point, use a nail and

string to scribe a 14” diameter circle on the black paper
or roof decking.

6.  Taking into consideration the thickness of your chosen

flashing  material,  build  a  19-1/4”  x  16-1/8”  (outside
dimensions) curb out of 2” x 4” or 2” x 6” material.

7.  Working  from  the  outside  of  your  roof,  use  the  guide

hole as a center point, cut and remove roofing material
in a 20” x 17” minimum area.