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28
Figure 8.6 Ceiling/Attic Construction
F. Complete Installation
WARNING! Risk of Fire! You MUST maintain 2 in.
(51 mm) air space to insulation and other combustible
materials around the chimney system. Failure to do so
could cause overheating and re.
• Keepchimneysectionsfromseparatingortwisting.
• Youmaysecurestraightchimneysectionsatthejoints
withscrewsnolongerthan1/2in.(13mm).
The following steps should be skipped if using a
chase.
• Installroofashingappropriatetoroofpitch.
• Installroundterminationcapandstormcollar.
G. Install Flashing
• Assemble chimney so it passes through the framed
opening.
• Sliptheashingoverthechimney.
NOTICE: Roong shingles must be below the ashing
plate on the lower side of a sloped roof and over the
ashing plate on the sides and top.
• Nail the ashing to the roof. Keep gaps between the
ashingplateandtherooftoaminimum.
• Caulktheashingplateandroofjunctionaswellasthe
vertical seam on the ashing.All nail heads must be
caulkedwitharoongsealant.
•Caulktheoverlapseamofanyexposedpipesections
thatarelocatedabovetherooflinetopreventleaks.
OutdoorLifestylesbyHearth&HomeTechnologiesInc.•4072-137RevK•10/15
E. Cut out Hole in Roof
• RefertoFigure8.6.
• 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.
• RefertoChapter 25oftheUniform Building Code for
roofframingdetails.
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