Venting Installation
Continued
5.Place flashing over pipe section(s) ex- tending through roof. Secure base of flashing to roof and framing with roofing nails. Be sure roofing material overlaps top edge of flashing as shown in Figure 19, page 15. There must be a 1" clearance from vent pipe to combustible materials.
6.Continue to add pipe sections until height of vent cap meets the minimum building code requirements described in Figure 7 on page 8.
Note: You must increase vent height for steep roof pitches. Nearby trees, adjoining rooflines, steep pitched roofs and other
Vertical Termination Configurations Figures 21 through 24 show four different configurations for vertical termination.
similar factors may cause poor draft or
7.
Note: If vent pipe passes through any occupied areas above first floor, including storage spaces and closets, you must enclose pipe. You may frame and sheetrock enclosure with standard construction material. Make sure and meet minimum allowable clearances to combustibles. Do not fill any required air spaces with insulation.
Venting with Two 90° Elbows | Venting with One 90° Elbow | |||
| Horizontal (H1) + | |||
| Vertical (V) | Horizontal (H) | ||
Vertical (V) Horizontal (H2) | 5' min. | 2' max. | ||
5' min. | 2' max. | |||
6' min. | 4' max. | |||
6' min. | 4' max. | |||
7' min. | 6' max. | |||
7' min. | 6' max. | |||
8' min. | 8' max. | |||
8' min. | 8' max. | |||
20' max. | 8' max. | |||
20' max. | 8' max. | |||
| 45° Elbow | |||
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45° Elbow |
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| Note: Install restrictor into | |
| inner collar of fireplace as | |
Note: Install restrictor | shown. | |
Figure 22 - Vertical Venting | ||
into inner collar of | ||
Configuration Using One 90° Elbow | ||
fireplace as shown. | ||
(Vertical Round High Wind Termination | ||
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Figure 21 - Vertical Venting | Shown) | |
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Configuration Using Two 90° Elbows |
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with Two Horizontal Runs (Vertical |
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Round High Wind Termination Shown) |
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