Installation Guide

TECHNICAL DATA SHEET
02.17.2017 | Page 6
Roppe Corporation | 1602 N. Union St. - Fostoria, OH 44830 | (800) 537 - 9527
RUBBER STAIR TREADS,
RISERS & STRINGERS
raised design
& specialty
removers prior to installation. Follow
The Resilient Floor Covering Institute’s
(RFCI) “Recommended Work Practice for
Removal of Existing Floor Covering and
Adhesive”, and all applicable local, state,
federal and industry regulations and
guidelines. When removing asbestos
and asbestos containing materials,
follow all applicable OSHA standards.
CONCRETE SUBSTRATES
All concrete must have a minimum
compressive strength of 3500 PSI and
be prepared in accordance with ASTM
F710. When stair treads are being
installed directly over concrete, concrete
surfaces that have an ICRI Concrete
Surface Profile (CSP) over 4 should be
smoothed with a suitable cementitious
patch (such as the Excelsior CP-300) to
prevent imperfections from telegraphing
through stair tread materials. Concrete
substrates must be tested in accordance
with ASTM F2170, using in situ
Probes (such as Wagner Rapid RH), to
quantitatively determine the amount of
relative humidity no more than one week
prior to the installation.
If ASTM F2170 test results exceed the
prescribed limits, a moisture mitigation
product, such as Excelsior MM-100
Moisture Mitigation, must be installed
prior to proceeding with installation. Do
not install flooring until moisture testing
has been conducted per the appropriate
standard and/or moisture mitigation has
been installed and is dry to the touch. Do
not install flooring in below grade areas
when hydrostatic pressure is visible or
suspected.
If ASTM F2170 test results are below
recommended limits, concrete
substrates must be tested for elevated
pH and alkalinity in accordance with
ASTM F710.
If pH testing per ASTM F710 exceeds
the prescribed limits, the concrete must
be sealed with the Excelsior MM-100
Moisture Mitigation prior to proceeding
with installation. Install The MM-100 per
technical data sheet at a minimum of 1
coat. Do not install flooring until material
is dry to the touch.
RESINOUS SUBSTRATES
When installing directly over a resinous
products, such as the Excelsior MM-
100 or an epoxy coating, ensure that
coating is dry to the touch and has
cured for the prescribed length of time.
Substrate must be clean, dry, sound and
free of contaminates. Ensure to follow
installation procedures and trowel sizes
for non-porous substrates.
GYPSUM BASED SUBSTRATES
Gypsum-based substrates must have a
minimum compressive strength of 3500
PSI. Gypsum substrates that do not meet
this requirement must have one coat
of the Excelsior MM-100 or equivalent
installed to improve the tensile/pull-
off strength of the substrate. Substrate
must be structurally sound and firmly
bonded to subfloor. Any cracked or
fractured areas must be removed and
repaired with a compatible patch or
repair product. Follow instructions for
installation over a gypsum substrate.
New or existing gypsum substrates
may require a sealant or primer. Follow
all manufacturer’s recommendations
regarding preparation for resilient
flooring installation.
WOOD SUBSTRATES
Wood substrates must be constructed
per federal, state and/or local building
codes. Wood substrates should have
a minimum thickness of 1”. If plywood
is being used, ensure plywood is
Underlayment Grade with a minimum
Adhesive RH Limits
AW-510 Acrylic Wet-Set: 85% RH
TP-620 Tape Adhesive:80% RH
C-630 Contact Adhesive:85% RH
MS-700 Modified Silane: 95% RH
EW-710 Epoxy Wet-Set: 85% RH
allow product to be directly exposed to
extreme heat sources, such as radiators,
ovens or other high-heat equipment.
May be susceptible to staining from
harsh disinfectants, cleaning agents,
dyes or other harsh chemicals – ensure
all chemicals and materials that may
come in contact with stair treads, risers or
stringers will not stain, mar or otherwise
damage the material prior to use.
3. SUBSTRATE PREPARATION
All substrates must be prepared
according to ASTM F710, as well as
applicable ACI and RFCI guidelines.
Substrates must be clean, smooth,
permanently dry, flat and structurally
sound. Substrates must be free of
visible water or moisture, dust, sealers,
paint, sweeping compounds, curing
compounds, residual adhesives and
adhesive removers, concrete hardeners
or densifiers, solvents, wax, oil, grease,
asphalt, visible alkaline salts or excessive
efflorescence, mold, mildew and any
other extraneous coating, film, material
or foreign matter. All substrates must be
vacuumed with a flat vacuum attachment
or damp mopped with clean, potable
water to remove all surface dust.
Sweeping without vacuuming or damp
mopping will not be acceptable.
All porous substrates must be tested
per ASTM F3191 to confirm porosity.
Use a pipette or equivilent to conduct
three tests by placing a .05 mL (1/4”
wide) droplet of clean, potable water
onto the surface. If the substrate absorbs
water within 60 seconds, the substrate
is considered porous. Conduct 3 tests
for the first 3000 sq. ft. and one for each
additional 2000 sq. ft., at least one per
room. All other substrates that do not
meet this requirement are considered
non-porous. Ensure that all non-porous
substrates are not contaminated with any
aforementioned contaminates.
When conducting renovations or
remodeling, remove all existing
adhesive residue so that 90% of the
original subfloor/substrate is exposed by
mechanical means, such as shotblasting,
grinding or buffing with a 100 grit
Diamabrush Prep Plus attachment.
Do not use solvent/citrus based adhesive
Adhesive pH Limits
AW-510 Acrylic Wet-Set: 7-10
TP-620 Tape Adhesive:7-10
C-630 Contact Adhesive: 7-10
MS-700 Modified Silane: 7-10
EW-710 Epoxy Wet-Set: 7-10