Installation Instructions
1
Structure, Impact,
endurance reSIdentIal
and lIght commercIal
InStallatIon InStructIonS
These products are installed directly adhered to the
suboor surface. In residential applications only, Impact
and Endurance can be installed over a Congoleum
UnderFlor. Use Congoleum AD-32 Pressure Sensitive
Adhesive for installations over all approved suboor
surfaces including Congoleum UnderFlor.
general InformatIon
• Resilient ooring installation should be scheduled
after all other trades have completed their work
• The HVAC systems must be in operation for at least
10 days prior to ooring installation and thereafter to
maintain a constant temperature.
• It is important to maintain proper temperature at the time
of installation in order to minimize thermal dimensional
changes. The suboor, all ooring material, and adhesive
must be conditioned at a constant temperature between
65°F (18°C) and 85°F (29°C) for 48 hours prior to, during
and 72 hours after installation. Thereafter, maintain the
room temperature between 55°F (13°C) and 90°F (32°C).
• Unopen cartons of ooring should be neatly stacked
in the room where they will be installed during the
acclimation period. Open cartons just prior to installation.
• When using ooring from two or more cartons, make
sure pattern and run numbers found on the carton are
the same.
• Mix and install ooring from several different cartons
to achieve a random appearance.
Subfloor InformatIon
The existing suboor type and condition, preparation
involved, cost and replacement ease, are all important
considerations when selecting the best installation method
for a particular job. The chart (on next page) provides a
list of common suboors and requirements for each
installation method. (See chart on page 2)
Subfloor preparatIon
All suboor surfaces must be clean, dry, smooth structurally
sound and free of contaminants or reagents that can inter-
fere with adhesion or cause discoloration to the oor such
as paint, wax, oil, grease, solvent, adhesive residue, curing
and parting compounds, sealers and surface hardeners.
All surface imperfections should be leveled with a portland
cement-based latex patching compound. Gypsum-based
patching compounds are not recommended. Deviations in
the suboor should not exceed 3/16" in 10' or 1/16" in 1'.
Suboor deection should not exceed 1/360th of the span.
Wood Floors must be structurally sound and free of move-
ment with at least 18" (46 cm) of well-ventilated air space
below. An effective vapor barrier laid on the ground surface
must be used in a crawl space. Do not install ooring over
wood suboors laid directly on concrete or over sleeper
construction laid over concrete suboors.
Sand joints smooth and set fasteners 1/32" (.8 mm) below
the surface. Fill underlayment joints wider than 1/32"
(.8 mm). Rough, weathered or damaged suboor panels
must be sanded smooth or covered with a suitable under-
layment panel. Congoleum will not assume responsibility
for claims related to suboor problems regardless of the
underlayment or suboor material used.
Concrete Floors must be clean, dry, smooth and free of
dust. Level, rough or uneven surfaces, cracks and control
joints with a portland cement-based patching compound.
Do not install ooring over expansion joints. Moisture vapor
emissions must not exceed 5-lbs. /1000 ft.²/24 hrs when
tested with calcium chloride test kits in accordance with
ASTM F-1869 or be greater than 80% RH (relative humid-
ity) when tested with IN Situ Probes in accordance with
ASTM F 2170. Surface pH must be between 5 and 9.
Existing Resilient Floors must be single layer, fully
adhered and well bonded over an approved suboor.
Remove all wax, oor nish or polish prior to installation.
Use embossing leveler to level embossed oors. Do not
install new ooring over loose laid or perimeter fastened
oors, soft or heavily cushioned oors, cushioned backed
ooring, self -adhered tile or tile installed below grade level.
Adhesive Residue must be completely removed on
installations where ooring will be directly bonded to the
suboor. Refer to the Resilient Floor Covering Institute
(RFCI) Recommended Work Practices for procedures
involving adhesive removal. Do not use solvent or liquid
adhesive removers to remove old adhesive residue.
These products can have a damaging effect on the new
oor and adhesive.
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