Vermont Casting DVRTSB - Manual (Page 19)

19
Vermont Castings, Majestic Products DVRTSB
10003848
5. Place fireplace into position.
6. Place firestop(s) #7DVFS or Attic Insulation Shield
#7DVAIS into position and secure. (Fig. 34)
7. Install roof support (Fig. 32) and roof flashing
making sure upper flange is below the shingles.
(Fig. 33)
8. Install appropriate pipe sections until the venting is
above the flashing. (Fig. 33)
9. Install storm collar and seal around the pipe. (Fig.
33)
10. Add additional vent lengths for proper height. (Fig.
31)
The enlarged ends of the vent section always
face downward.
11. Apply high temperature sealant to 4” and 7” collars
of vertical vent termination and install.
If there is a room above ceiling level,
firestop spacer must be installed on both
the bottom and the top side of the ceiling
joists. (Fig. 34) If an attic is above ceiling
level a 7DVAIS (Attic Insulation Shield)
must be installed.
Typical Roof
Support Application
Typical Ceiling
Support Application
FP1184
Fig. 32 Venting supports.
3 #5 Sheet Metal
Screws per Joint
Sealant
Storm Collar
3 #5 Sheet
Metal
Screws per
Joint
Storm Collar
Sealant
TWL101a
Fig. 33 Roof flashing.
Attic Insulation
Shield
Upper Floor
11”
(279mm)
Joist
Firestop Spacer
Nails (4)
FP1029
Fig. 34 Attic insulation shield and firestop spacer installation.
11”
(279mm)