CFM Corporation SHR42A Canadian Requirements for Insulation Shield, Additional Ceilings, 20001384

SHR Series Woodburning Fireplaces

Attic Installation	Ceiling Installation
Nails (4)
Firestop Spacer		Joist
Joist		Firestop
		Spacer
Flange Down Into Hole		Nails (4)
NOTE: If the attic insulation shield is used, the	Flange Up Into Hole
firestop is not required in the attic installation.		FP285
Fig. 21 Installing firestop spacer.

Canadian Requirements

for Insulation Shield

In Canada, an attic insulation shield is required to prevent attic insulation from contacting the chimney section. NOTE: If the attic insulation shield is used, the firestop is not required in the attic installation. Fram- ing dimensions for the chimney hole should measure 17¹⁄₂" x 17¹⁄₂" (445 x 445 mm). An attic shield MUST be installed on top of attic joists (above the floor level). (Fig. 22)

NOTE: In the U.S., it is a good idea, although not al- ways required, to install an attic insulation shield where blown-in insulation is planned to be used in the attic.

Install the attic insulation shield with the flanges on its base extending down into the framing hole. Nail each corner of attic insulation shield to the framing members of the ceiling hole using 8d nails. Attic shields are not required at the roof.

Attic
Insulation
Shield	Nails
	(4 required)
	Attic Joist
	Base
Ceiling	Flanges
	FP263
Fig. 22 Attic shield installlation (Canadian requirement).
20001384

Continue Installing Pipe to Complete Run

Continue attaching pipe sections to complete system to next level always being careful that the pipe is firmly snap locked in place before proceeding to next pipe section.

Chimney Supports

If chimney supports are required, they are installed the same as elbows. Nail chimney support straps to ad- jacent structural framing, as shown in Figure 8, Page

8.Bend straps as necessary and make sure they are

secure so they will support the weight of the chimney. A chimney support is 2¹⁄₂" 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 same steps required for first ceiling installation. Refer to firestop illustration in Figure 21.

Penetrating the Roof

Run pipe to roofline. Since chimney system must be vented to the out-of-doors, you must use an approved termination.

If a chase is used, refer to the installation manual pro- vided with the termination cap.

Locate Chimney Centerpoint on Roof

Use same procedure detailed in locating center point of the flue system.

Drive a nail up through roof at the center point. This will determine center point on outside of the roof.

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