16 Installation (For Qualified Installers Only)
© Travis Industries 4080725 100-01154
Installation Example: Class A Chimney Retrofit
Vent
Clearance*
Type "L" Vent
6” Minimum
Floor Protection
2”
Minimum
9” Minimum
Outside
Air
(optional)
Floor Protection
Outside air may be drawn from
a ventilated crawl space.
2” Min.
Vent
Clearance*
Class A Chimney Ceiling Support
Roof Flashing
“L” Vent to Class A Chimney Adapter
Class A Chimney
“L” Vent
Storm Collar
Class A Chimney must
maintain clearances outlined
in the chimney’s installation
instructions (usually 2”).
“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
* Install vent at clearance specified by the vent manufacturer.