Majestic DV360 Homeowner's Installation And Operating Manual page 19

Vertical Through-the-Roof Installation
1. Locate your fireplace.
2. Plumb to center of the (4") flue collar from ceiling
above and mark position.
3. Cut opening equal to 9³⁄₈" x 9³⁄₈" (240mm x 240mm).
4. Proceed to plumb for additional openings through
the roof. In all cases, the opening must provide a
minimum of 1 inch clearance to the vent pipe, i.e.,
the hole must be at least 9³⁄₈" x 9³⁄₈" (240mm x
240mm).
5. Place fireplace into position.
6. Place firestop(s) #7DVFS or Attic Insulation Shield
#7DVAIS into position and secure. (Fig. 37)
7. Install roof support (Fig. 38) and roof flashing
making sure upper flange is below the shingles.
(Fig. 40)
8. Install appropriate pipe sections until the venting is
above the flashing. (Fig. 40)
9. Install storm collar and seal around the pipe.
f i r e - p a r t s . c o m
10. Add additional vent lengths for proper height. (Fig.
39)
11. Apply high temperature sealant to 4" and 7" collars
of vertical vent termination and install.
If there is a room above ceiling level, fire stop spacer
must be installed on both the bottom ad the top side of
the ceiling joists. If an attic is above ceiling level a
7DVAIS (Attic Insulation Shield) must be installed.
The enlarged ends of the vent section always face
downward.
Attic Insulation Shield
Upper Floor
11"
(279mm)
Ceiling Installation
Joist
Nails (4)
Fig. 37 Place firestop spacer(s) and secure.
20002261
Vermont Castings Majestic Products DV360/580 Series
Fig. 38 Venting supports.
Fig. 39 Minimum termination to roof clearance.
11"
(279mm)
Fig. 40 Roof flashing.
Firestop
Spacer
FP1029
Typical Roof
Support
Application
Min.
2' (610 mm)
3 #5 Sheet Metal
Screws per Joint
Sealant
Typical Ceiling
Support
Application
FP1184
FP1185
Storm Collar
TWL101a
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