Heatilator Birmingham BIR36-B Installation Manual page 23

G. Roof Penetration
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Install Flashing
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plate on the lower side of a sloped roof and over the
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H. Install Chase/Chase Top
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WARNING! Risk of Fire! DO NOT caulk the pipe to the
chase top collar.
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Heatilator • Birmingham 36-B Installation Manual • 4059-709 • Rev AB • 06/23
Figure 5.9 Ceiling/Attic Construction
Slope Downward
(1/4 in. per foot
minimum)
Figure 5.10 Chase Top Construction
2 in. (51 mm) Collar
on Chase Top
Turn-down
Drip Edge
Chase
.018 (26 ga) min.
Galvanized
Chase Top