BuckMaster AIR-TIGHT, Installation & Operator'S Manual

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6
INSTALLING THE CHIMNEY
Follow chimney manufacturer’s instructions for
proper installation. Be sure the chimney is equipped
with the corresponding anchor plate for attachment to
the fireplace.
Whenever possible, the chimney should take a
straight vertical path to the roof. If a bend is required,
use only one angled section with a maximum of two
elbows. Only 15
o
or 30
o
elbows are approved for this
unit. Consult your dealer for selection of components
and observe required clearances.
1. Cut and frame in holes in ceiling and roof where
chimney will pass with 2" x 4"s. Finished
opening should be 13" x 13" . Use a plumb bob
to line up centers of holes with flue opening on
fireplace.
2. Attach a firestop radiation shield on the underside
of the framing for each floor that the chimney
goes through. At the attic level install an attic
radiation shield.
3. Place bead of hi-temp silicone caulk under
appropriate chimney anchor plate and push plate
collar into fireplace flue. Secure with metal
screws. Connect first chimney section per
manufacturer’s instructions. Continue adding
sections until required height is achieved.
4. If the chimney is not enclosed and passes through
a vented attic space or roof, proceed as follows:
A. Slide roof flashing over chimney and seal
flashing to roof with roofing compound. If
roof is sloped, place top edge of flashing
under shingles and bottom edge on top of
shingles. Secure with roofing nails.
B. Place storm collar over chimney and
flashing. Tighten collar and seal joint with
good quality caulking compound.
C. Install raincap or chimney and secure.
D. Clean flashing with vinegar or solvent and
apply a coat of rustproof paint.
5. If the chimney is enclosed in the attic it must be
fitted with a good radiation shield and vented
flashing.
A. Install radiation shield in roof and attach with
four 3/4" screws or 1" nails.
B. Seal roof flashing to roof with roofing
compound. On sloped roofs, place top edge
of flashing under shingles and bottom edge
on top of shingles. Secure with roofing nails.
C. Place storm collar over chimney and push
down so collar makes contact with flashing.
Seal the collar joint with silicone or high
quality caulking.
D. Install and secure raincap.