Heat & Glo Montana-36 Owner's Manual page 20

Mark the Exit Point of the Roof
Locate the point where the chimney will exit the roof by plumbing down to the
center of the chimney. Drive a nail up through the roof to mark the center. See
Figure 6.3.
Cut Out the Hole in the Roof
Measure to either side of the nail and mark the 14-1/2 in. x 14-1/2 in.
(368 mm x 368 mm) opening required. This is measured on the horizontal;
actual length may be larger depending on the pitch of the roof. Cut out and
frame the opening. See Chapter 25 of the Uniform Building Code for roof
framing details.
Assemble the Chimney Sections Through the Roof
Continue to add chimney sections through the roof opening, maintaining at
least a 2 in. (51 mm) air space to combustible materials.
Install the Roof Flashing
If a roof fl ashing is to be used, install the roof fl ashing appropriate to the
roof pitch and install a round termination cap and storm collar following the
instructions shipped with the cap.
20 Heat & Glo LifeStyles Collection • Montana US-CAN • 4039-156 Rev C • 11/07
WARNING
Fire Risk
• Must maintain 2 in. (51 mm) air clearance
to insulation and other combustible
materials.
Figure 6.3 Ceiling/Attic Construction