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18-BB42D1-1A-EN
Table 4. Typical Rooftop Horizontal Airflow Application with Frame
Supply Air
Return Air
Roof Flashing
Channel Iron Center
Support (Center Support
required on all frame
applications).
Angle Iron Frame
Table 5. Typical Rooftop Down Airflow Application with Frame
Return Air
Roof Flashing
Channel Iron Center Support
(center support required on all
frame applications).
Angle Iron Frame
Roof
Flashing
Supply
Air