Hearth and Home Technologies RUTHERFORD-42 owner manual Finishing Material, Noncombustible Facing

D. Finishing Material

Refer to Sections 12.A. and Sections 12.B. for combus- tible/noncombustible materials. Refer to Figure 12.10 for noncombustible zone.

WARNING! Risk of Fire! You must maintain clearances.

•Use only non-combustible framing material below standoffs.

•Sheetrock, wood or other combustibles must NOT be used as sheathing or facing in the noncombustible zone.

•DO NOT cover metal fireplace front with combustible materials.

•Install combustible materials only to specified clearances on top front and side edges.

•Complete framing and apply facing material (drywall) over framing.

•A bead of 300-deg F minimum non-combustible sealant must be used to close off any gaps at the top and sides between the fireplace and facing to prevent cold air leaks.

•Large gaps can be bridged with fiberglass rope gasket.

•Only non-combustible materials may be used to cover the metal fireplace front.

Note: We recommend mortar be applied after facing materials are installed. Refer to Sec- tion 11.D.

Finished combustible wall

Combustible material

Non-combustible decorative facing (up to full brick depth)

Continuous, non-combustible sealant

Tile, stone or other non-combustible material

2 x 4 stud wall

2 x 4 header, flush with front of stand-offs

1 in. Micore or equivilent insulation & 1/2 in. Durock

Metal strips are placed 2 in. (51 mm) under the front of the fireplace and must extend beyond the front and sides of fireplace opening by 2 in. (51 mm)

Floor constructed of wood or other combustible material