12
Step 8
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Completing the Top Termination:
Ensure that a 2-inch air space clearance to combustibles is maintained as the chimney passes through the roof
opening. It is recommended on steep roof slopes or when the chimney height above the roof exceeds 5 feet, that
a roof support bracket is used to assist in stabilizing and leveling the chimney. Using a level, make sure the
chimney is vertically plumb.
Slide the roof flashing over the chimney and place the flashing under the upper shingles and on top of the lower
shingles. Nail the flashing to the roof along the upper edge and down each side with 1-inch roofing nails, but do
not nail the lower edge. Seal the nail heads with a water-proof silicone sealant.
Install a storm collar around the chimney and slide down to fit against the roof flashing. Caulk the joint between
the chimney and the storm collar with a waterproof silicone sealant.
Note: Do not caulk or seal the ventilating
openings of a ventilated flashing.
Fit the rain cap to the top of the chimney. Attach by tightening the clamp band.
Optional Extended Roof Brace Installation:
If the chimney height extends
more than
5 feet
above the roof
line an extended roof brace must be installed. The chimney may not extend more than 5 feet above the extended
roof brace. If this does occur, multiple extended roof braces will be needed.
The extended roof brace consists of three parts. The chimney locking band, brace legs and roof brackets.
1 – Position the chimney locking band approximately 2/3 of the way up the chimney. Secure the band
by tightening the nut and bolt supplied.
2 – Fasten one end of the brace legs to the chimney locking band. Adjust the length of the telescoping
legs so that they form approximately a 45 degree angle with the chimney and the two braces should be
approximately 90 degrees apart. Mark these two locations on the roof.
