Fireplace - Coronado Stone Products

Apply Scratch Coat
Install Stone
to side motion to create a bond. Each
additional course that is installed will
begin with a cornerstone.
Manufactured stone veneer is easily
shaped or cut as desired. This enables you
to fit stones quickly into place, insuring
a natural looking wall with tight mortar
joints. Cutting or shaping can be done
by using either of the following tools:
4” handheld disc grinder with diamond
blade, nippers or a wet saw. Note: Always
wear safety glasses while cutting stone
veneer.
5. Apply a nominal ⅜” to ½” thick layer
of mortar over the lath with a mason’s
trowel. Ensure the lath is completely
covered with mortar to allow for scoring
of the surface. Apply a thin layer of
mortar over any areas of the wall where
lath is still visible. The mortar should
be applied with sufficient pressure and
thickness to fully embed the lath. Once
the mortar is thumb-print hard, scratch
the surface horizontally with a notched
trowel, scarifier or scrap piece of lath to
create a scratch coat.
6. After the scratch coat dries (allow at
least 24 hours) and before the stone is
applied, snap 8” chalk lines across the
wall for the purpose of proper horizontal
alignment of stone. When installing
the first course, start at the bottom
corner of a wall installing one or two
corner stones first. Corner pieces have
a long and a short return. These returns
should alternate in opposite directions
on the wall’s corner staying within the
chalk lines. Continue the project by
installing flats off of these corner pieces.
Apply mortar to the back of the stone
and work it into the wall with a side
11191 Calabash Ave. • Fontana, CA 92337
Phone: (800) 847-8663 Fax: (909) 357-7362
[email protected]
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Due to photographic and printing variations, colors may not be accurate.
We suggest examination of Coronado Stone® product samples prior to purchase.
Fireplace
Install Guide
Install Weather Resistant
Layer and Lath
1. Before installing any Coronado
Stone® veneer products, make sure the
surface is clean and free of any dust or
debris. Dirt and dust on the wall could
lessen the bond between the stone and
the masonry surface.
2. Build out the wall to your desired
dimension (note: installing the scratch
coat and stone will add additional
dimension and should be factored in
while designing your fireplace).
3. Install sheathing over your wood
frame. There are several different types
of sheathing that can be used including:
plywood, drywall and cement board.
The most commonly used sheathing is
plywood.
Tools and Materials Required:
Hammer, Mason’s Trowel, Safety Glasses, Level, Chalk Line, Whisk Broom, Wire Brush, Water Bucket,
Hoe, Dust Mask, Screw Gun, Screws, Nails, Premixed Type S Mortar and Polymer Modified Mortar
Possible Tools Needed:
4” Grinder with Diamond Cutting Blade, Coronado Nippers or a Wet Saw
4. Install a WRB - weather resistant
barrier (grade D felt paper 60 minutes)
is recommended. The upper layers of
the WRB should overlap the top of
the lower layers by a minimum of two
inches. The WRB should be installed
in accordance with the manufacturer’s
recommendations. Next, apply a layer
of 2.5 or 3.4 pound expanded metal lath
horizontally. The lath should overlap a
minimum of one inch on the horizontal
and vertical seams.
Detailed instructions available at
www.CORONADO.com