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Vermont Castings Stratton
Attic Insulation
Shield
Ceiling
Fig. 21 Attic shield installation (Canadian requirement).
continue installing pipe to complete Run
Continue attaching pipe sections to complete the system
up to the next level. Always be sure the pipe is firmly snap
locked in place before proceeding to the next pipe sec-
tion.
chimney Supports
If chimney supports are required, they are installed in the
same manner as elbows. Nail chimney support straps to
adjacent structural framing, as shown in Figure 19. Bend
straps as necessary and make sure they are secure so
they will support the weight of the chimney. A chimney
support is Z\x" (64 mm) long when installed. Consider this
dimension when determining how many straight chimney
sections are needed.
NoTe: Chimney supports are generally used in long runs
in a chase installation.
additional ceilings
If you encounter additional ceilings, repeat the steps
outlined for the first ceiling installation. See the firestop
illustration in Figure 0.
penetrating the Roof
Run pipe to the roofline. Since the chimney system must
be vented to the out-of-doors, you must use an approved
Vermont Castings Group termination.
If a chase is used, refer to the installation manual provided
with the termination cap.
locate chimney centerpoint on Roof
Use the same procedure detailed to locate the center point
of the flue system.
Drive a nail up through the roof at the center point. This
will indicate the center point on the outside of the roof
surface.
14
Nails
(4 Required)
Attic Joist
Base Flanges
FP63
IGF263
MBUF
5/9/96
cut and Frame Roof hole
The size of the roof hole varies with the type of chimney
termination to be used. Refer to installation instructions
provided with the chimney termination to correctly size
the roof hole.
There must be a 1Z\x" (38 mm) air space between outermost
portion of chimney sections and any adjacent combustible
surfaces. (Combustible surfaces include burnable materi-
als such as: ceiling members, joists, flooring, combustible
insulation and roof structures.)
waRNiNg: Do not pack required air spaces with in-
sulation or other materials.
Mark an outline of the roof hole using the nail as a center-
point. NoTe: Hole dimensions given in the chimney top in-
stallation instructions are horizontal dimensions; therefore,
the hole size must be marked on the roof accordingly.
Cover the opening of the installed chimney so debris can-
not get into the system.
Cut and frame the hole. It is good practice to use framing
lumber that is the same size as the rafters. Install the frame
securely because the chimney top and flashing anchored
to the frame must be able to withstand heavy winds.
install Remainder of chimney Sections
Since you have preplanned the height of your termination
according to the Ten Foot Rule, continue to install pipe to
the predetermined height.
Check the chimney top installation instructions for details
on how high above the roof top the chimney sections (all
pipes) should extend.
install Top housing or Termination
Follow the installation instructions provided with the chim-
ney termination you have selected.
installing chimney in a chase
Refer to Page 5, Figure 3 for an illustration of a typical
chase installation.
caUTioN: Use of firestop spacers and construction of a
chase may vary with type of building. These instructions
are not a substitute for local building codes. You must
check your local building codes to determine specific re-
quirements for your city or state. NoTe: Other building
materials may be required in addition to Vermont Castings
Group Firestop Spacers.
30004508
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