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Majestic Royalton Series • BE36/42 • 4044-197 Installation Manual • Rev J • 09/18
Figure 5.8 Ceiling/Attic Construction
Install Flashing
• Assemble chimney so it passes through the framed
opening.
• Slip the flashing over the chimney.
NOTICE:
Roofing shingles must be below the flashing
plate on the lower side of a sloped roof and over the
flashing plate on the sides and top.
• Nail the flashing to the roof. Keep gaps between the
flashing plate and the roof to a minimum.
• Caulk the flashing plate and roof junction as well as
the vertical seam on the flashing. All nail heads must
be caulked with a roofing sealant.
• Caulk the overlap seam of any exposed pipe sections
that are located above the roof line to prevent leaks.
Slope Downward
(1/4 in. per foot
minimum)
Turn-down
Drip Edge
Chase
2 in. (51 mm) Collar
on Chase Top
.018 (26 ga) min.
Galvanized
Chase Top
Figure 5.9 Chase Top Construction
H. Install Chase/Chase Top
• You MUST use a chase top in a chase installation.
Chase tops may be field constructed.
• Include a turndown and drip edge to prevent water
from seeping into the chase.
• Include a 2 in. (51 mm) soldered, welded or spun
collar around pipe opening to keep water out.
• Provide a 1/8 in. (3 mm) gap around the flue pipe.
• Slope the chase top downward away from the
opening.
WARNING!
Risk of Fire! DO NOT
caulk the pipe to the
chase top collar.
• Caulk all seams to prevent leaks.
G. Roof Penetration
• Refer to Figure 5.8.
• Plumb from roof to center of chimney.
• Drive a nail up through roof to mark center of pipe.
• Measure to either side of nail and mark the 14-1/2 in. x
14-1/2 in. (368 mm x 368 mm) opening required.
• Measure opening on the horizontal; actual length may
be larger depending on roof pitch.
• Cut out and frame opening.
