25613-0-0309Page 34
A
B
NAILS,4REQUIRED
CEILINGFIRESTOP
EXISTINGCEILING JOISTS
NEWFRAMING
CEILINGBELOW
B
A
NAILS,4REQUIRED
CEILINGFIRESTOP
A
B
FRAMING AND FINISHING (continued)
Vent Size A B
6 5/8" 10" 10"
8" 10 1/2" 10 1/2"
Vent Size A B
6 5/8" 10" 10"
8" 10 1/2" 10 1/2"
Vent Size A B
6 5/8" 10" 10"
8" 10 1/2" 10 1/2"
Figure 51
Figure 52
Figure 53
See Horizontal Termination Page 35 and Vertical Termination
Pages 37 and 38.