NOTE: All finishing materials on top of exterior sheathing must be non-combustible for a minimum of 12 inches above and on both sides of the exterior face of the appliance. This non-combustible finishing material can be up to a maximum of 6 inches thick (6 inches maximum horizontal overhang) to allow for brick and stone alcoves (see Figure 8.5).

NOTE: Combustible housewrap or building paper MUST NOT extend over the outside of non-combustible sheathing, and MAY extend over the flashing header behind non-combustible sheathing. Use hightemp caulk to seal between combustible sheathing housewrap and non- combustible sheathing.

STUD WALL

FIREPLACE

HEADER

HOUSEWRAP

CEILING OR OVERHANG

SOFFIT

 

 

SHEATHING,

 

 

COMBUSTIBLE

 

 

HOUSEWRAP

 

 

(BUILDING

 

 

PAPER) OVERLAP

35-5/16 in.

FLASHING 1 in.

MINIMUM CLEARANCE TO

 

NON-VINYL SOFFIT, MANTEL,

NON-COMBUSTIBLE

CEILING OR OVERHANG.

 

 

SHEATHING

64-5/16 in.

 

 

MINIMUM CLEARANCE

 

TO VINYL SOFFIT,

 

CEILING OR OVERHANG.

12 in.

INSULATION

FLASHING

HEADER

INSULATED

FRAMING

STANDOFF

Figure 8.6 Exterior View

TOP OF

FIREPLACE

APPLIANCE

TOP HOOD

HOOD

 

 

SOFFIT

 

 

SIDING

 

 

 

 

DRAIN PLANE

35-5/16 in.

 

HOUSEWRAP (BUILDING

MINIMUM CLEARANCE

 

DETERMINED BY

 

PAPER) AND SHEATHING

LOCAL CODE

TO NON-VINYL

 

 

 

64-5/16 in.

 

 

 

CLEARANCE TO VINYL

 

DETAIL -

SOFFIT, OVERHANG, MANTEL,

 

 

OR CEILING

 

SEE FIGURE 8.5

12 in.

 

 

 

MINIMUM CLEARANCE

 

 

 

TO NON-VINYL SIDING

 

 

INSULATION

36 in. MINIMUM

 

 

CLEARANCE TO VINYL SIDING

 

 

 

 

TOP OF

 

 

APPLIANCE

 

 

 

 

TOP OF HOOD

 

APPLIANCE

BRICK OR OTHER NON-COMBUSTIBLE

 

HOOD

 

 

FACING MATERIAL 6 INCH MAXIMUM

 

 

PROJECTION FROM SURFACE OF

 

 

FIREPLACE (INCLUDES NON-COMBUSTIBLE

 

 

MANTEL PROJECTION)

 

 

NON-COMBUSTIBLE BRICK LEDGE

 

 

MUST BE TIGHT TO APPLIANCE

 

FACE OR NON-COMBUSTIBLE SHEATHING

 

Figure 8.7 Exterior View with Non-combustible Facing Material

 

 

 

Heat & Glo LifeStyle Collection

Twilight-II-B2108-900

Rev. G • 8/07

23

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Hearth and Home Technologies II-B owner manual Detail