FIRST COURSE
SI DE WALL
ECI
MORTAR
15
Assembly Instructions - (cont.)
3. Earthcore mortar can be troweled over the face of a joint
where it has squeezed out while setting components. It is not
intended that the exposed faces of the Isokern components be
completely covered with the mortar.
Installation:
Step 1: Set the MAGNUM base plate in a full bed of Earthcore
Mortar at on a proper concrete support foundation. (Figure
9).
Do not set the MAGNUM base plate so that it is in span. Level
the MAGNUM base plate by oating it in a bed of Earthcore
Mortar to full bearing against the underlying noncombustible
support surface.
Notes: If the design preference is for a “ush hearth”
(replace oor ush with the room’s oor), the base plate
can be omitted from the assembly and the rebox walls built
directly on the concrete support slab. The re brick oor of the
rebox is then set directly to the concrete support slab. This
makes the replace nished re brick oor approximately
one and one-half inches (1-1/2”) above the top of the concrete
support slab (Figure 10).
If the design preference is for a raised hearth
(oor of the replace elevated above the room’s oor), then
the MAGNUM base plate can be set on a noncombustible
platform that is built up to the desired raised hearth height on
the concrete support slab.
When calculating raised hearth height be sure to
allow for the three inch (3”) thick base plate plus the one and
one half inch (1-1/2”) thick re brick oor in addition to the
height of the platform. Whether a ush hearth is preferred or
a raised hearth, the combustible oor on front of the replace
must be covered with a noncombustible hearth extension
set tight against the replace front and extending at least 20
inches out from the nished replace and at least 12 inches
beyond the nished sides of the replace opening. (Figure 11)
For all “raised hearth” construction where concrete
blocks are used to create the raised platform, it is necessary to
use the MAGNUM base plate. Be sure to mortar the concrete
block platform together. CMU used for base plate support
should be rated ASTM 90.
Step 2: Set the rst course of the rebox back wall and side
walls into place.
It may be convenient to dry set the rst course of
side wall and back wall into place on the Isokern base plate
and then to trace their position on the base plate with a pencil.
(Figure 12)
After outlining the dry set pieces, remove them and
apply Earthcore Mortar to the areas traced on the base plate
where the side walls and back wall are to sit. By doing this,
the rst layer of Wall components can be set directly into
mortar already applied to the proper areas on the base plate.
(Figure 12) Be sure to put Earthcore Mortar on the contact
surfaces of the vertical joints where the side wall and back
wall components connect. (Figure 13)
Note: At all component placement, be sure to mortar all
component contact surfaces with Earthcore Mortar. Check
for complete sealing of each contact joint while assembly
progresses.
FIGURE 12
FIGURE 9
FIGURE 11
FIGURE 10
To Next Page
Loading...
Need help?
General
