12
Top Collar Section to the field-fabricated chase
top with sheet metal screws or rivets (Fig. 14).
Seal Chase Top Collar Section to chase top with
non-hardening waterproof sealant to ensure a
weather tight connection. Additional screening
as needed for field-fabricated chase covers is
allowed. Additional ½” minimum spacers can be
field-fabricated as needed out of 24 GA sheet
metal or other suitable non-combustible material.
Additional non-combustible structural supports
can be field-fabricated to help support the chase
top flashing if needed, provided the air ventilation
requirements are maintained. Secure the Chase
Top Flashing to the chase with at least (3) screws
or nails per side. When installed, the bottom of
the Chimney Cap must be at least 6” above the
Chase Top Flashing (Fig. 15).
13. Finish Top: Apply a non-hardening
waterproof sealant around the chimney at the
point where the Storm Collar will meet the
chimney just above the Flashing (Fig. 15). Slide
the Storm Collar down over the chimney to the
top of the Flashing. The Storm Collar must be
installed 1” off the Chase Top Flashing to provide
proper ventilation (Fig. 15). Tighten the bolts
of the Storm Collar and seal the Storm Collar
against the Chimney with sealant. Be sure
Chimney and Offsets are properly supported.
Attach the Chimney Cap onto the top of the
chimney by setting the female end of the Cap
onto the male end of the last Chimney Section.
Secure the Cap by using (4) sheet metal screws
provided (Fig. 16). Do not push down from the
top portion of the cap as this may damage the
cap. push from the lower section of the Cap if
needed. The Chimney Cap can be removed for
chimney cleaning as described in the Chimney
maintenance section of the instructions.
14. Enclosures: enclose chimneys where
they pass through occupied spaces, including
closets. Always maintain at least a 2-inch
Figure 16
TERMINATION
CAP
Figure 14
Figure 15
6" MIN.
COLLAR
SEALANT
STORM
OPENING
ABOVE ROOF
3' MINIMUM
CHASE TOP
COLLAR
SEALANT
SCREW OR
POP-RIVET
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