Avalon Astoria - Installation Example: Type a Chimney Retrofit

14 Installation
Travis Industries 4011009 93508126
Installation Example: Class A Chimney Retrofit
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Type "L" Vent
6” Minimum
3”
Minimum
Floor Protection
2”
Minimum
9” Minimum
Outside
Air
(optional)
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Floor Protection
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Outside air may be drawn from
a ventilated crawl space.
2” Min.
3” Min.
Class A Chimney Ceiling Support
Roof Flashing
“L” Vent to Class A Chimney Adapter
Class A Chimney
“L” Vent
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Storm Collar
Class A Chimney must
maintain clearances outlined
in the chimney’s installation
instructions (usually 2”).
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“Tee”
Seal each vent
section (including
adapters, elbows,
etc...) by injecting a
liberal amount of
500° F. RTV
silicone into the gap
between sections.
500° F. RTV
Silicone