Installation & Assembly

TECHNICAL DATA SHEET
01.30.2018 | Page 6
Roppe Corporation | 1602 N. Union St. - Fostoria, OH 44830 | (800) 537 - 9527
RUBBER STAIR TREADS,
RISERS & STRINGERS
raised design
It is recommended that all substrates
have a floor flatness of FF32 and/or a
flatness tolerance of 1/8” in 6’ or 3/16”
in 10’. Substrates that do not meet this
requirement should have a compatible
cementitious patch (such as the Excelsior
CP-300) or self-leveling underlayment
(such as the Excelsior SU-310) installed
to flatten the installation area.
Do not use solvent/citrus based adhesive
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 flooring is being installed
directly over concrete, concrete surfaces
that have an ICRI Concrete Surface
Profile (CSP) over 4 should be flattened
with a self-leveling underlayment or a
patch to prevent imperfections from
telegraphing through flooring materials.
On or below grade concrete must have
a permanent, effective moisture vapor
retarder installed below the slab.
New or existing concrete substrates
on all grade levels must be tested in
accordance with ASTM F2170, using in
situ Probes, 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.
Install The MM-100 per technical
data sheet at a rate of 400 sq. ft. per
gallon. When installing over concrete
as moisture mitigation, material must
be applied in two coats. 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.
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
thickness of 1/4” and is fully sanded
prior to installation. When stairs may
be subjected to moisture, use an APA
approved exterior grade plywood.
Other wood materials, such as OSB,
lauan, particleboard, chipboard,
Adhesive RH Limits
AW-510 Acrylic Wet-Set: 90% RH
TP-620 Tape Adhesive: 80% RH
C-630 Contact Adhesive: 85% RH
MS-700 Modified Silane: 95% RH
EW-710 Epoxy Wet-Set: 90% RH
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 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 have any and
all existing adhesives, materials,
contaminants or bond-breakers
mechanically removed via scraping,
sanding or grinding. Mechanical
preparation must expose at least 90%
of the original substrate. Following
cleaning and removal, 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 equivalent 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.