Framing And Finishing - Empire Comfort Systems DVX36DP31N-2 Installation Instructions And Owner's Manual

FRAMING AND FINISHING (continued)
EXISTING CEILING JOISTS
CEILING BELOW
Vent Size
6 5/8"
8"
A
Vent
Size
6 5/8"
8"
28653-2-0811
NEW FRAMING
A
B
A B
10" 10"
10 1/2" 10 1/2"
Figure 54
B
NAILS, 4 REQUIRED
CEILING FIRESTOP
A B
10" 10"
10 1/2" 10 1/2"
Figure 55
NAILS, 4 REQUIRED
Vent Size
6 5/8"
8"
See Horizontal Termination Page 36 and Vertical Termination
Pages 38 and 39.
CEILING FIRESTOP
A
B
A B
10" 10"
10 1/2" 10 1/2"
Figure 56
Page 35