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Installation
Installation must meet National Building Code requirements.
Carefully read entire installation guide before proceeding with your
stone application. Observe applicable safety precautions.
1.Estimating
stone required
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Determine gross surface area to be covered by measuring the length
times the height.
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Determine
square
footage for windows, doors, and other openings.
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Calculate surface area covered by corner pieces by multiplying
measured length by 0.75 (one linear foot of corner pieces covers
approximately 0.75 of a square foot of flat area).
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Determine net surface area to be covered by subtracting square
footage for openings and surface area covered by corner pieces from
gross surface area.
2.Surface
preparation
2.1 Exterior installation
Rigid Backwall: (Wallboard,
Plywood, Wall Sheathing, Concrete Board, Any other
acceptable rigid backwall)
Install 2.5 lb. expanded galvanized metal lath backed with
asphalt paper, using galvanized nails or staples penetrating
studs a minimum of 1”.
Apply 1/2” to 3/4”
scratch coat and allow to dry 24 hours
(fig. a). |
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Concrete, masonry, stucco
If your surface is
clean and untreated,
no preparation needed.
Examine newly poured concrete closely to ensure that its
finished surface contains no release agents (form oil). If it
does contain form oil, etch surface with muriatic acid, rinse
thoroughly and score with a wire brush . Sandblast or waterblast
to original surface (remove sandblasting dust by washing) or
securely attach lath.
Apply 1/2” to 3/4”
scratch coat and allow to dry 24 hours
(fig. b).
2.2 Interior installation
No preparation needed.(fig. b) |
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3.Planning
of stone work
Before you begin, lay out a
quantity of stone (we suggest 20 square feet) near the work area to give
you a wide selection of stones to choose from; try to achieve a balanced
pattern of shapes, sizes, color and textures by mixing various stones.
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4.Mortar
Mixing Mortar
Using Premixed Type N mortar, mix to a firm, moist consistency,
not too wet and not too dry.
You may also use Polymer Modified thin-set Mortar to apply stone
to wall surface, and then finish joints with Premixed Type N mortar.
Mortar can be tinted to complement the color of the stone being
installed.
Applying Mortar to Prepared Surface Area
Apply
mortar 1/2" to 3/4" thick to prepared surface area. Do not spread more
than a workable area 5 - 10 sq. ft., so that mortar will not “set up”
before stone is applied. |
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5.Stone
installation
Joints
There are two types of
installations: with joints and jointless
or dry-stacked.
Grouted joints are considered to be a standard installation for bricks and
stones. There are some stones such as Artek Stone Ledgestones which for
aesthetic reasons are installed without joints (dry-stacked
installation).
For best results, joints should be as consistent as possible, the
average not exceeding 3/8" in width.
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6.Setting
the stones
To set the stone apply a
½'' thick layer of mortar to the entire back of the stone, using a mason's trowel.
Press the stone firmly into place on the prepared
wall surface, squeezing the mortar out around all edges. A gentle
wiggling action while pressing the stone will ensure a good bond.
With jointless jobs it's important (when setting the stone) that the
edges of the stone are properly sealed with mortar to ensure a good
bond. Make sure that edges are hermetically sealed.
.Accidental smears should be
removed using a whisk broom only after mortar has become crumbly but has
not completely set.
Install
corner pieces first.
Notice that the
corner pieces have a long and a short leg. Alternate these in opposite
directions. After that, flat pieces are applied working toward the wall
center.
The stones can be cut or
shaped using appropriate tool according to type of stone and desired
cut. Position
large pieces first, then trim and fit small pieces into any remaining
voids. To conceal cut or broken edges, cover them with mortar
when grouting. |
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7.Grouting and finishing joints
If additional mortar is required, use a
grout bag to fill in joints.
Be careful
to avoid smearing mortar on surface of stone. Never use a wet brush or
wire brush. |
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When the mortar joints have become firm or thumb-print dry,
they should be pointed up with a wood stick or metal
jointing tool. Rake out excess mortar, compact and seal
edges around stones. Careful attention to proper and even
jointing will result in a professional looking finish. |
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8.Cleaning finished job
When
mortar is sufficiently set up, the new surface should be broomed or
brushed to remove loose mortar and to clean the face of the stone. A wet
brush should never be used to treat the mortar joints as this will cause
staining that will be difficult, or impossible, to remove. Do not use
acid or acid base products.
For outdoor jobs, use tarpaulin to protect newly installed stones until
job is entirely completed.
Weather conditions
If stone is being applied in hot or dry weather, the back of each
piece should be moistened with a fine spray of water or a wet brush to
adequately prevent excessive absorption of moisture from the mortar. If
being installed over concrete, masonry or scratch coat substrate, the
substrate surface area should also be dampened before applying mortar.
Applications
should be protected from temperatures below freezing.
Mortar and stones must be kept at minimum 5ºC during installation and at
least 48 hours afterwards. Do not use antifreeze compounds to lower the
freezing point of mortar.
Cleaning the stones
To clean dirt or other particles from the stone, use with detergent
mixed with water and brush softly.
Rinse immediately with fresh water.
Never use a corrosive product. Never
use a metal scrubber.
Note: Artek Stone products are not
recommended for swimming pools or floors.
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Artek Stone 50 Year Limited
Warranty
Manufacturer warrants ARTEK
STONE products for a period of 50 years from the date of purchase,
when used on structures conforming to the National Building Code
and when installed in accordance with manufacturer's written
instructions.
This warranty covers only manufacturing defects in the
manufacturer's products.
Warranty coverage specifically excludes damage resulting from:
- Wall movement;
- Settlement of the building;
- Contact with chemicals or paint;
- Discoloration due to contaminates, staining or oxidation.
Warranty coverage is
limited to replacement or repair of defective materials only and does
not cover labour to remove or replace materials.
Warranty coverage is limited
to the original purchaser and cannot be transferred.
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