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Firestops
NOTE:
Many firestops are designed for a 1" clearance, this fireplace
requires a 2" clearance.
•
Whenever the chimney penetrates a floor or ceiling a firestop is required on the bottom side of the floor joists
•
When passing through an attic the firestop must be placed on the attic side of the joists
•
When the chimney passes through a living space it must be totally enclosed (maintain the minimum 2"
clearance to combustibles)
•
The space between frames that hold the firestop in place should be measured as follows:
Temco
Superior
FMI
Marco
Chimney Termination Requirements
•
The chimney must terminate a minimum 3' above the roof and 2' above any portion within 10' (measured
horizontally). This applies to flat and sloped roofs.
•
The chimney must have a
chimney cap
•
When using a chase to enclose
a chimney, the chimney
termination is not required to
be 3' above the chase as long
as the chase is above the roof
structure. The chimney cap
must still maintain the 2, 3, 10
clearance to any other
structure. See the illustration
to the right.
•
Chimneys extending beyond a
certain height (frequently 5')
above the roof may require
braces (check the chimney
instructions for details)
?
In some problematic situations,
additional chimney height
above the specified minimums
may be necessary to reduce
wind-induced down drafting
and back puffing, or to
increase draft, thereby
improving fireplace operating
characteristics.
Part # 17601184
36E - ZC Builder Booklet
TM
16" Min.
(12" pipe diameter plus 4" (2" clearance times two))
16 1/2" Min.
(12 1/2" pipe diameter plus 4" (2" clearance times two))
16 1/2" Min.
(12 1/2" pipe diameter plus 4" (2" clearance times two))
16 1/2" Min.
(12 1/2" pipe diameter plus 4" (2" clearance times two))
Space
between
frames
Slanted Roofs
Chimney must
extend 3'
above the roof
Flat Roofs
Chase Installations
© 2001, Travis Industries, Inc.
Firestop
Chimney must
extend 3'
above the roof
6" Min.
Chimney must extend 2'
above any portion of the roof
within 10' of the chimney
Chimney must extend 2'
above any portion of the roof
within 10' of the chimney
Cap
Storm Collar
Drip Collar (seal around edges)
Sheet Metal Chase Top
Chimney Pipe
Chase
Printed 9/24/04
Page 10
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