E. Combustible Mantel
•
See Figure 12.11.
•
A combustible mantel may be positioned no lower than 22 in. (508 mm) above the top of the fi replace opening.
•
A combustible mantel may have a maximum depth of 12 in. (305 mm).
•
Combustible trim and materials cannot be placed within 6 in. (152 mm) of the fi replace opening (top or sides).
•
Combustible materials projecting more than 1-1/2 in. (38 mm) shall not be placed within 12 in. (305 mm) from the top of
the fi replace opening.
•
Combustible trim must not cover the metal surfaces of the fi replace.
•
Mantel clearance is in accordance with Section 7-3.3.3 of ANSI/NFPA211.
Combustible Wall
2 x 4 stud header
Standoffs
Figure 12.11 Clearances to Mantels or other Combustibles above Fireplace
42
Noncombustible Decorative Facing
12 in./305 mm MAXIMUM
22 in./559 mm MINIMUM
Measured from top of fireplace opening
Seal joint with
non-combustible sealant
Heat & Glo • RUTHERFORD-50 • 4059-333 Rev D • 07/08
7 ft (2134 mm)
minimum
floor to ceiling