WARNING! Risk of Fire!
Secure offsets with screws (not to exceed 1/2in./13mm in length).
Secure returns with strapping.
Straight chinney sections may be secured with screw (not to exceed 1/2in./13mm in length) at the joints Keep chimney sections from separating or twisting.
Straps
Ceiling Firestop
I. Double-check the Chimney Assembly
Continue assembling the chimney sections up through the ceiling firestops as needed. While doing so, be aware of the height and unsupported chimney length limitations given un- der Section 8.A. Chimney Requirements.
Check each section by pulling up slightly from the top to en- sure proper engagement before installing the succeeding sections. If they have been connected correctly, they will not disengage when tested.
Joint
Band
Optional(Optional) Additional
Support
Figure 8.11 Secure the Chimney
J. Cut out Hole in Roof
•Refer to Figure 8.11.
•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
•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.
K. 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 fire.
The following steps should be skipped if using a chase.
•Install roof flashing appropriate to roof pitch.
•Install round termination cap and storm collar.
L. 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.
Figure 8.12 | Ceiling/Attic Construction |
•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.
Page 48 | Heatilator • Constitution EPA Fireplace • | 4/20/11 |
