Quadra-Fire QV-ST Installer's Manual

Contents

Quadra-Fire QV-ST Installer's Manual Manual pdf 27 page image

27For Vertical Terminations - To locate the vent and installthe vent sections:• Locate and mark the vent centerpoint on the undersideof the roof, and drive a nail through the centerpoint.• Make the outline of the roof hole around the centerpointnail.• The size of the roof hole framing dimensions depend on thepitch of the roof. There MUST BE a 1-inch (25.4mm) clear-ance from the vertical vent pipe to combustible materials.• Mark the roof hole accordingly.• Cover the opening of the installed vent pipes.• Cut and frame the roof hole.• Use framing lumber the same size as the roof raftersand install the frame securely. Flashing anchored to theframe must withstand heavy winds.• Continue to install concentric vent sections up throughthe roof hole (for inside vent installations) or up past theroof line until you reach the appropriate distance abovethe roof (for outside terminations).WARNING: MAJOR U.S. BUILDING CODESSPECIFY MINIMUM CHIMNEY AND/ORVENT HEIGHT ABOVE THE ROOF TOP. THESE MIN-IMUM HEIGHTS ARE NECESSARY IN THE INTER-EST OF SAFETY. SEE THE FOLLOWING DIAGRAMFOR MINIMUM HEIGHTS, PROVIDED THE TERMI-NATION CAP IS AT LEAST TWO (2) FEET FROM AVERTICAL WALL AND 2-FEET BELOW A HORIZON-TAL OVERHANG.NOTE: This also pertains to vertical vent systems in-stalled on the outside of the building.!Roof Pitch H (min.) ft.flat to 6/12 1.06/12 to 7/12 1.25over 7/12 to 8/12 1.5over 8/12 to 9/12 2.0over 9/12 to 10/12 2.5over 10/12 to 11/12 3.25over 11/12 to 12/12 4.0over 12/12 to 14/12 5.0over 14/12 to 16/12 6.0over 16/12 to 18/12 7.0over 18/12 to 20/12 7.5over 20/12 to 21/12 8.0Figure 27. Minimum Height from Roof toLowest Discharge OpeningTo seal the roof hole, and to divert rain and snow from thevent system:• Attach a flashing to the roof using nails, and use a non-hardening mastic around the edges of the flashing basewhere it meets the roof.• Attach a storm collar over the flashing joint to form awater-tight seal. Place non-hardening mastic around thejoint, between the storm collar and the vertical pipe.• Slide the termination cap over the end of the vent pipeand rotate the pipe clockwise 1/4 turn.HORIZONTALOVERHANGVERTICALWALLTERMINATIONCAP12XROOF PITCHIS X/ 12LOWESTDISCHARGEOPENINGH (MIN.) - MINIMUM HEIGHT FROM ROOFTO LOWEST DISCHARGE OPENING2 FT.MIN. 2 FT. MIN.Step 4. Positioning, Leveling, andSecuring the Fireplace• Place the fireplace into position.• Level the fireplace from side to side and from front to back.• Shim the fireplace with non-combustible material, suchas sheet metal, as necessary.• Secure the fireplace to the framing by nailing or screwing.The diagram below shows how to properly position, level,and secure the fireplace.Figure 28. Proper Positioning, Leveling, andSecuring of a FireplaceNAILING TABS