November 2025 - Magazine - Page 25
November 2025
function or a string plumb bob.
Cut the stove pipe opening with a reciprocating saw or a manual drywall jab saw.
Pull out insulation.
Run a screw upward through the roof deck at the center of the hole until the end pieces through the shingles.
On the roof, lay the roof flashing down, with the screw from below centered in the flashing. Reach in and draw a hole for the ceiling support box.
Cut through the shingles and the roof deck plywood or OSB.
Warning
Always check for ceiling joists and rafters. Make sure proper clearances for stove pipe can
be obtained before locating the stove's position.
STEP 6: Add the Ceiling Support Box
From the roof, fit the ceiling support box into place. Tuck the top flaps of the ceiling support
box under the surrounding shingles.
STEP 7: Add the Wall Protection and Spacing (Optional)
Install wall protection if the wood stove is to be located close to combustible walls, but only
if permitted by local authorities. In many cases, the wall protector may be 24-gauge sheet
metal, 1/2-inch non-combustible insulating board, or a brick wall. Space all materials except for sheet metal 1/2-inch from the combustible wall. Space the sheet metal 1-inch
from the wall.4
STEP 8: Install Roof Flashing
On the roof, cut the roofing nails adjacent to the ceiling support box. Slide the flashing under the shingles on the top section (the side facing the roof ridge), with the flashing over
the shingles on the lower section. Apply exterior-grade silicone caulking under the flashing.
STEP 9: Add the Storm Collar to the Stove Pipe
Install the top sections of the chimney stove pipe in a telescoping fashion until it is 36 inches
or higher above the roof. Slide the protective storm collar over the top of the stove pipe
and caulk it to the stove pipe with a generous bead of fire-grade silicone sealant.
