Owner`s manual

31449-4-1113 Page 23
VENTING FRAMING AND FINISHING (continued)
EXISTING CEILING JOISTS
NEW FRAMING
CEILING BELOW
B
A
VentSize A B
6 5/8" 10" 10"
8" 10 1/2" 10 1/2"
Figure 33
A
B
NAILS,4REQUIRED
CEILING FIRESTOP
VentSize A B
6 5/8" 10" 10"
8" 10 1/2" 10 1/2"
Figure 34
NAILS,4REQUIRED
CEILING FIRESTOP
A
B
VentSize A B
6 5/8" 10" 10"
8" 10 1/2" 10 1/2"
Figure 35
See HorizontalTermination Page 25 and Vertical Termination
Pages 26 and 27.