Hearth and Home Technologies EXCLAIM-36 Non-combustible Sealant, Flush Hearth Extension Framing

Non-combustible Sealant

After completing the framing and applying the facing materials over the framing, a bead of non-combustible sealant must be used to close off any gaps at the top and sides between the fireplace hearth.

Non-combustible Sealant

Figure 11.6 Place Non-combustible Sealant

Flush Hearth Extension Framing

A raised hearth extension built flush with the fireplace opening (Figures 11.7, 11.8) requires the fireplace to be installed on a non-combustible surface.

12 in.
Min.	12 in.	30 in. min.
	Min.
Figure 11.7 Flush Hearth Extension

Note: Maximum height from floor under fireplace to top of finished hearth extension is 7-5/8 in.

Finished

Floor30 in. Min.

Hearth Extension

Micore	Noncombustible Material	Protective Metal
		Hearth Strip

Figure 11.8 Flush Hearth Extension Side View

42 Heat & Glo • EXCLAIM-36, EXCLAIM-42 • 4013-251 Rev C • 11/08