Attic Insulation
Shield
Joist |
Ceiling |
| 11" | |
Installation |
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11" | Upper Floor | ||
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Joist
Firestop Spacer
Nails (4)
CFM100
Fig. 38 Place firestop spacer(s) and secure.
If there is room above ceiling level, firestop spacer must be installed on both the bottom and the top side of the ceiling joists. If an attic is above ceiling level a 7DVAIS (Attic Insulation Shield) must be installed. (Fig. 38)
7.Install roof support (Fig. 39) 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.
10.Add additional vent lengths for proper height. (Fig 41)
CDVX Series Direct Vent Gas Fireplace
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| Vent |
| Roof | Termination | |
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| 2’ Min. | Storm Collar |
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| Roof Flash- |
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| Roof Support | ing |
50’ |
| Attic Insulation |
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| Shield |
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(15 m) |
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Attic |
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| Insulation |
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| Joists |
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| Joists |
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| FP1022 |
Fig. 39 Typical
3 #5 Sheet Metal Screws per Joint
Sealant
Storm Collar
TWL101a
Fig. 40 Roof flashing.
The enlarged ends of the vent section always face down. (Fig. 37)
Min.
2' (610 mm)
FP1185
Fig. 41 Minimum termination to roof clearance.
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