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3.3SPECIAL VENT INSTALLATIONS 3.3.1 PERISCOPE TERMINATION
Use the periscope kit to locate the air termination above grade. The periscope must be installed so that when final grading is completed, the bottom air slot is located a minimum 12” above grade. The maximum allowable vent length is 10’.
12" MIN. TO
GRADE
12" MIN.
TO GRADE
24" MINIMUM
FIGURE 3.3.1a |
29" MINIMUM
30 1/2"
FIGURE 3.3.1b
9.4
3.3.2 CORNER TERMINATION
The maximum vent length for a corner installation is 24".
24” | MAXIMUM | ||
| RISE | ||
0” | |||
| |||
FIGURE 3.3.2
CORNER INSTALLATION
