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B.DIRECT VENT - VENTING AND AIR INTAKE THROUGH A ROOF
Figure 13 shows typical vertical venting. The vent pipe must pass through the ceiling, floor and the roof vertically through a 8” minimum diameter cutout. A fire stop is required for each ceiling and floor penetration. For roof passage an appropriate UL listed roof flashing must be used.
The vertical vent piping must terminate with a screened straight termination. The air intake termination should be a screened 180˚ elbow facing down. The air intake opening must be at least 1 foot below the vent opening.
For PVC/CPVC pipe, follow the proper assembly practices specified on page 7, and venting system restrictions specified on page 7 of this manual. For stainless steel venting systems, follow the vent manufacturer’s instructions and the restrictions specified on page 7 of this manual
JAGUAR
THROUGH A ROOF
All joints must be liquid and pressure tight. Use 4” dia. PVC/CPVC schedule 40 pipe or U/L listed single wall 4" dia.
FLASHING AND
STORM COLLAR
AIR INTAKE 180°ELBOW
WITH SCREEN
1 FT. MIN.
1 FT. MIN
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STRAIGHT TERMINATION
WITH SCREEN
10 FT. MIN.
FIRESTOP AND
SUPPORT
2" MIN.
PIPE SUPPORT
FIRESTOP AND SUPPORT
SLOPE UP 1/4 IN.
PER FOOT MIN.
4" DIA. PVC/CPVC PIPE FOR AIR INTAKE
4" DIA PVC/CPVC
OR STAINLESS
STEEL MATERIAL FOR VENT
Figure 13. Direct vent, venting and air intake through a roof.
**Definition of Snow Line: Knowledge of local conditions will reveal the maximum height that repeated snowfalls accumulate to. The height should be used as the SNOW LINE.
* AL
