Product: General Steel's GenStone
can be fastened over wood substrates using wood screws,
masonry substrates using concrete screws, and steel
substrates using self-tapping screws. The screws must
be exterior-grade for outside applications and must
penetrate the substrate a minimum of 1". The screw-head
should be counter sunk about 1/8" and then covered
with GenStone grout.
panels must be fastened every 8" along the shiplap
edge. The panel above it and to the right will conceal
these fasteners by the overlapping shiplap edge. You
will need to apply approximately 3-4 screws in the formed
grout joint on the bottom left-hand side of the panel
to ensure firm attachment to the substrate where they
may be easily hidden with the GenStone grout.
to installing General Steel's GenStone, a level line
consistent with the substrate should be set at the bottom
of the substrate. This is necessary to ensure proper
installation, as not all substrates are level. After
the line has been set, begin with the bottom left corner,
applying the product left to right. Place the panel
in its designated position to check the fit. Panel should
be attached using the proper fasteners (see above),
set approximately 8" apart, along the positive
shiplap edge. It is recommended that every other horizontal
row begin with a 1/2 panel to ensure that the seams
are staggered, further enhancing the seamless appearance.
To fit an inside corner, miter cut each panel at a 45
degree angle. Apply touch up paint to the cut area before
attaching the panels. Once the panels are in place,
apply GenStone grout to all exposed joints and screw-heads.
Again, work the grout to acheive a blended appearance.
Over Wood Substrates: When applying
General Steel's GenStone products over exterior wood
substrates, a moisture barrier is required. Apply the
moisture barrier (such as tar paper products) sterting
from the botton to top and overlapping each edge by
two inches (refer to the manufacturers instructions).
When applying GenStone products over interior wood substrates,
a moisture barrier is not required. Apply GenStone products
using exterior-grade screws as required. (see "
Over Masonry: General Steel's
products can be applied over brick, block, or concrete,
but the application requires some different tools and
materials. Place the GenStone panel on the wall with
adhesive, hold panel in place, and fasten panel using
a concrete screw, such as a tapcon. Use a fastener with
a small enough head to allow it to be completely sunk,
approximately 1/8" into the panel. (see "Applying
Over Steel: General Steel's
GenStone products can be applied over steel sheeting.
When applying over a commercial-grade pre-engineered
steel building, OSB board is required. Attach OSB board
to the steel sheeting at the high rib using self-tapping
screws, and attach GenStone to the OSB (see "Application
over Wood Substrates"). When using GenStone as
a Wainscoat, a metal closure should be applied to the
top edge. (metal closures and OSB are not provided by
Over Dry Wall: (See "Application
over Wood Substrates").
General Steel's GenStone products are
made of structural polyurethane. Although very durable
and impact resistant, they should be handled carefully,
as certain impacts may cause damage. GenStone products
should not be stored at an angle, or they may be susceptible
to warping. The edges and backside of panels are not
UV protected, as they will be concealed after installation.
Prior to installation, these edges should not be exposed
to direct sunlight for extended periods of time. Leave
product in original packaging prior to installation.
and Patching: Small scars and gouges
in the surface of General Steel's GenStone products
can be easily repaired. Simply apply a small amount
of color-matched paint to the affected area and work
it in until achieving a blended appearance. Severely
damaged areas can be repaired by cutting out the damaged
area and replacing it with a similar piece of GenStone
product. Keep in mind that unprotected urethane is susceptible
to sunlight. It is important to be sure that any exposed
or damaged areas are sufficiently covered with the suggested
Sherwin-Williams paint (A80 exterior grade, water-based,
mat finished paint).
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