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Installation Guide
There are two basic stone
installation methods giving Old Carolina Stone (OCS) two
distinctive appearances: Dry stacked is one of the
most current and commonly used applications. When the
dry stacked method is used, all the stones are fit
tightly together with no visible mortar joints. The
standard, more traditional, method has a mortar joint
between all the stones. Most of the installation
procedures are the same for both variations. The
differences will be outlined in this instruction guide.
I. Estimating the Stone
Required
Flat and corner stones are
used for installation. Flat stones are used for all
flat wall applications and are ordered in square
footage. Corner stones are used on all outside corners
and are ordered in linear footage. Water tables, window
sills, cap stones, and hearthstones are also ordered in
linear footage.
1.
Determining the Total Footage Needed. Take the
width and multiply it by the height of all the flat
surface areas that need to be covered. When measuring,
deduct for all window and door openings.
2.
Determining the Linear Footage of Corner Stone Needed.
Measure all the linear footage of outside corners
including columns, doors and windows if needed.
3.
Determining the Square Footage of Flat Stone Needed.
One linear foot of corner stones will take up ½ a
square foot of wall space. Take the total linear
footage of corner stones and multiply by .5 and subtract
that number from the total footage needed. This will
give the you the total square footage of flat stone
need.
4.
Determining the Waste: It is recommended that you
purchase an additional 5 to 10% of stone to for cutting
and trimming for a proper fit. When using OCS add 5% to
our Cobble stone, Ledge stone, Fieldstone and Carolina
Blend. Add 10% to our Shadowrock and Mountain Blend.
II. Additional Materials
Required
1. Mortar Components:
Type S mortar mix is recommended. Mortar
should be mixed with 2 parts masonry sand to 1 part
mortar. Iron oxide may be used to add color variations
to standard mortar.
2. Weather Resistant Barrier:
All exterior and interior mortar
applications except over concrete, masonry and stucco
require a weather resistant barrier. Confirm with
local building codes on the proper weather resistant
barrier for your area. The most common weather
resistant barrier is felt paper also known as
building paper. When installing felt, lap
all horizontal joints with the upper piece overlapping
the lower by a minimum of 2 inches. All vertical joints
should be lapped no less than 6 inches. There
should be no vertical joints in the weather resistant
barrier any closer than 16 inches from an inside or
outside corner.
3.
Flashing: To maintain a weather resistant exterior,
where stone will be applied, rigid, corrosion resistant
flashing should be installed at the point of all
penetrations and terminations of the stone veneer.
Consult you local building official for flashing types
and locations.
4. Metal
Lath: A minimum of 2.5 lb galvanized diamond mesh,
metal lath should be used when preparing any rigid
backwall surface (wall board, plywood, OSB, paneling,
concrete board or polystyrene over a rigid back wall)
for OCS veneer, meeting the requirements of ATSM
847. It is important that metal lath is
attached with the small diamonds pointing up. Metal
lath shall be lapped no less than ½ inch on vertical
butt end and 1 inch on horizontal laps. Metal lath
should not lap any closer than 16 inches from an inside
or outside corner. When attaching metal lath to wood
studs, galvanized nails or staple may be used, spaced
no more than 6 inches vertically and 16
inches horizontally, penetrating the stud a minimum of 1
inch. When attaching to metal buildings and open stud
construction use 3.4 lb, 3/8 ribbed, paperback metal
lath. Attach the metal lath with galvanized self
tapping screws with a minimum 3/8 inch penetration.
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