Installation Guide

Table Of Contents
7
Install fasteners at least 1 inch above the top edge of the panel to avoid water penetration. Drive fastener
flush to the flashing/substrate layer. DO NOT overdrive fasteners as this can damage flashing.
Each panel should have at least 1 fastener driven into a stud. Panels longer than 16 inches should have at
least 3 fasteners and panels less than 16 inches should have at least 2 fasteners. In the rare cases where no
fasteners can be driven into a stud, supplemental gluing as described above to aluminum flashing fastened to
at least one stud is required. Additionally, apply a ¼ inch thick dashed line of adhesive along the top of the
stone(s) the piece will be set on, leaving 2 inch spaces between “dashes” to allow water to escape.
Fastening Modified
o
Panels
“Modified panels” are Silvermine panels where the integrated flashing has been removed.
Modified panels above four feet must be “face-fastened” together with the use of construction adhesive.
This ensures good contact between the panel and the bonding surface while construction adhesive is curing.
As a rule, one fastener every 10 inches (horizontal length) of a modified panel will be enough to supplement
the adhesive.
Install face-fasteners as follows:
o DO NOT USE A HAMMER DRILL for either drilling pilot & counter sink holes or driving face
fasteners as the force may crack the panels.
o Drill a pilot holes through the stone panel using a 1/8 inch masonry bit.
o Drill countersinking holes 1/2 inch in the same locations using a 5/16 inch masonry bit, making sure to
leave a minimum of 1/2 inch of stone behind the head of the screw.
o Apply a 3/8 inch thick, quarter sized dollops of construction adhesive (every 6 to 8 inches) to the
aluminum flashing the panel will cover 2 to 4 inches above the top edge of the panel beneath.
o Apply a 1/4 inch thick dashed line of adhesive along the horizontal and vertical edges of the panels that
will adjoin the modified piece leaving 2 inches between “dashes” to allow water to escape.
o Install modified panel and press into adhesive to assure complete contact.
o Drive screw(s) through the pre-drilled panel and into the substrate. Do not over-drive the screw as you
will crack the panel. Use only enough torque to pull the panel into the adhesive and to maintain contact
while adhesive cures.
o Use a matching color exterior grade sanded caulk to cover the screw head and fill the counter sink hole.
Caution: Fasteners may crack a panel if installed in the simulated mortar joints. It is best to select a
thicker area of the panel to drill out the holes for the face fastening screws. Holes from drilling are easier to
conceal in darker areas of the stone.
Note: Adhesive cannot be expected to hold if bonded directly to the house wrap or to SAF. The
adhesive needs a material to which it can achieve a strong bond and make a sound mechanical connection to
sheathing/framing such as non-painted
p
, clean metal flashing or metal lath fastened securely to substrate and
studs.
Fastener Specifications (for face fastening):
o Head Types: Bugle
o Size: #8, >=2 1/2” long
o
p
Silvermine’s integrated flashing is designed and coated specifically for these applications. If purchasing flashing, use
unpainted/uncoated flashing.
o Material: Stainless steel
o Threads/Inch: 15 or less