Installation Instructions

11
Apply a non-hardening high temperature silicone caulking just above
the top of the Flashing cone on the chimney casing. Slide the collar down
the chimney until it contacts the Flashing and the caulking. Tighten the
nut and bolt (or fold the tab over the slot) and apply additional caulking
above the Storm Collar as required. After the installation check to ensure
that the ventilation slots are not obstructed. (See Figure 19).
Shingles
Flashing
Neoprene
Washers /Nails
Level
Roof
Pitch is 3/12
3"
12" Ruler
FIGURE 17
Roof Pitch Calculation
Find the centre of the opening by dropping a plumb bob from the inside
of the roof sheathing to the centre of the leveled chimney length below.
Do the same to find the outline of the required opening to the edge of
the hole in the ceiling below. By moving the plumb bob around the edge
of the opening below (which includes the required clearance) mark
several points forming the outline of the hole on the underside of the roof
sheathing. Remember: these measurements are in the horizontal plane.
Drill pilot holes following the marked outline.
Once you have marked and located the area where the chimney will come
through the roof, position and prepare the roof area by removing
shingles, shingle nails and cutting of the roofing material. Be careful
when lifting roof shingles so they do not become damaged as they may
be old or if the installation is done during cold weather. Frame the
opening to suit the pitch of the roof and allowing for a 2" clearance to
the chimney on all four (4) sides. This is done before extending the
chimney above the roof.
Slide the top edge (nearest the roof peak) of the Flashing under the roof
shingles. At least half of the Flashing should be UNDER the shingles
Roof Flashing InstallationFIGURE 18
Ensure that you have the proper Roof Flashing by checking your roof
pitch using a level and two rulers (see fig. 17) or by using a roof pitch
card.
The AAF Roof Flashing is for roof pitches from 0/12 to 6/12.
The AF2 Roof Flashing is for roof pitches from 6/12 to 12/12.
ROOF FLASHING:
Wrap the Storm Collar around the chimney above the Flashing. Secure
the ends together loosely with the nut and bolt supplied or by sliding
the appropriate tabs into slot.
Apply a bead of
silicone caulking
along the seam
of the cone
where it meets
the plate
Apply a bead of
silicone caulking
along the back
seam of the
cone
Slide the Roof Support down over the chimney section until the
support brackets rest on the roof or floor. Use a level against or on top
of the Chimney Length to ensure that the chimney is plumb prior to the
final position of the support brackets. Tighten the support band around
the chimney with the nuts and bolts supplied, then secure the collar by
screwing the 6 supplied sheet metal screws through the holes in the
support band and into the chimney casing.
Center the chimney in the joist or rafter opening (ensure that the 2"
required air space clearances are met) and nail or screw the support to
the roof or floor using the 12 x 3-1/2” spiral nails supplied
or 12 #8 x 1 -1/4" wood screws.
Install additional Chimney Sections and lock together by turning
clockwise until the two sections lock together snugly - continue in this
manner until the desired height is achieved. The use of Locking Bands
on all Chimney Lengths above the roof is highly recommended for added
safety and stability when exposed to windy conditions.
NOTE: The male coupler of each chimney length must be up.
Attach the support brackets to the support band with the 1/2” nuts, bolts
and lock washers. The lock washer is placed between the band and
support bracket to provide proper spacing as shown in Figure 16.
NOTE: A Rubber Boot Flashing Kit (URBFK1) is available as an option
for passing through a corrugated or metal roof. See separate instruc-
tions packaged with the Rubber Boot Flashing Kit.
On metal or steep roofs, it is recommended that a chimney cricket
fabricated from heavy-guage galvanized steel be installed. This will
protect the Chimney and the Flashing by routing the snow load and ice
around the chimney. This is not a supplied item. Contact a sheet metal
fabrication shop in your area for your custom chimney cricket.
and the bottom edge OVER the shingles to provide a watershed.
Trimming off the shingles may be neccessary around the cone of the
Flashing for a better fit. Do not nail the flashing to the roof yet as
adjustments may be required.
Assemble Chimney Sections through the roof opening and Flashing.
Ensure that all sections are locked together by turning clockwise until
the sections lock snugly. Install Locking Bands to secure the chimney
sections. Fasten the Flashing with 2 screws or nails. Before committing
to a final position of the Flashing and Chimney, ensure the entire
Chimney system is level and plumb and the required 2" air space
clearance is maintained from all combustible material before perma-
nently nailing and sealing of the Flashing to the roof.
Nail the Flashing to the roof deck (also under the shingles) along the
upper edge and down each side with 12 nails with neoprene washers or
cover the nails with a suitable non hardening waterproof caulking. Seal
the shingles to the plate in the same manner. As a precaution, you may
apply a bead of caulking along all seams of the Flashing.
The Flashing and Storm Collar may be painted to match the roof
shingles. This will extend its life and improve the appearance. The
chimney may be painted also with a HEAT RESISTANT paint. To
improve adhesion to the SuperVent/SuperPro chimney, degrease, clean
and prime before painting. Follow the paint manufacturer's instructions.