FireRock FIREROCK RUMFORD, Руководство по установке, техническим характеристикам и эксплуатации

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FIREPLACE INSTALLATION
STEP 7: FIREBRICK INSTALLATION
A 1 ¼” minimum firebrick (ASTM 1261) lining is required to
meet the standard. Thicker firebrick (compliant with ASTM
1261) may be used as an option and is encouraged for a sturdier
wall. For a sturdier construction, FireRock recommends using
a minimum 21/2” brick for the floor and back wall and 11/4” brick
for side walls to maintain true opening widths. The same
FireRock Adhesive Mortar used for the firebox and chimney
should be used to affix the firebrick to the inner wall of the
firebox.
Follow the installation instructions below when laying your
firebrick.
FIREBRICK INSTALLATION
1. Mix mortar according to package instructions.
2. Apply a skim coat of mortar approximately 1/16” thick to
the back wall to remove air gaps and provide added heat
protection.
3. Using a trowel, apply mortar to the face and sides of the
firebrick to achieve a joint thickness of 1/16” - 1/8”, unless
otherwise noted.
4. Start applying the firebrick at the front edge of the floor
and work your way back leaving approx. ½” gap off the
back and side walls (Figure 10.1) – this space allows for
heat expansion and is to be left empty of mortar. For the
floor only, FireRock recommends a brick to brick joint.
NOTICE:
Failure to leave an expansion gap can result in
firebrick cracking.
5. Apply firebrick to the back wall. Cover the expansion
gap on the floor with the overlap of brick, leaving it free
of mortar. Leave a 1/2” expansion along both side walls
(Figure 10.2).
6. Apply firebrick to the side walls, starting at front of box
and moving back, covering the expansion gaps along the
floor and back wall with the overlap of brick, but leaving
it free of mortar (Figure 10.3).
FireRock makes no claims as to the performance of firebrick or
firebrick mortars except those manufactured by FireRock. It
is typical for heat stress cracks to appear in the firebricks after
use. The National Fire Protection Association Standard 211 says
your fireplace and flue should be inspected at least once a year.
FLOOR WITH 1/2” EXPANSION GAP
ALONG BACK AND SIDE WALLS
FIGURE 10.1
FLOOR & BACK WALL WITH 1/2”
EXPANSION GAP ALONG SIDE WALLS
FIGURE 10.2
FULLY BRICKED FIREBOX
COVERING EXPANSION GAPS
FIGURE 10.3