Subfloor Preparation
Wilsonart Tap-N-Lock Technology Flooring is a floating floor system and can
be installed over most existing floors (e.g. sheet vinyl, vinyl tile,
ceramic tile, concrete, cement). Always use the recommended Wilsonart
Underlayment Padding.
Wooden subfloors must be structurally sound, clean, dry and flat to
within a tolerance of 3/16" (5mm) over a 10' (3.04m) span and must have good
ventilation underneath them. Wood floors that are over a concrete or cement
subfloor MUST be removed before installation of Wilsonart Flooring products.
Uneven floors should be sanded or filled with a Portland cement based
product to achieve a level surface. Floor leveling compound must be allowed
to dry completely as per manufacturer’s instructions. Loose areas or squeaks
in the floors must be repaired prior to installation.
Concrete subfloors must be structurally sound, clean, dry and flat to
within a tolerance of 3/16" (5mm) over a 10' (3.04m) span. Concrete
subfloors must be cured properly and allowed to dry for at least 60 days
after curing process. A vapor barrier such as Wilsonart Polyethylene 8mil
Film must be used when installing over any bare concrete below, on, or above
grade or cement based floor (i.e. ceramic tile, terrazzo, etc.) making sure
seams overlap a minimum of 16" (tape the entire overlap seam together with
polyethylene or foil tape). The appropriate vapor barrier is already
attached to the Wilsonart 2-In-1 Pad and Commercial Cushion underlayments.
Note: Wood subfloors/wood floors over concrete must be removed.
Any concrete or cement based floors or subfloors (including ceramic and
terrazzo tile) should be tested for moisture vapor emissions.
THE
MAXIMUM ALLOWABLE MOISTURE EMISSION RATE FOR INSTALLING WILSONART FLOORING
IS 5 POUNDS PER 1000 SQUARE FEET PER 24 HOURS. THE GUIDELINES FOR TESTING
SHOULD FOLLOW THE ASTM F 1869 TEST METHOD. THIS METHOD COVERS THE APPARATUS,
CONDITIONING, AND MEASURING PROCEDURES.
Ceramic or Terrazo tile subfloors should be tested for moisture vapor
emissions as stated above. Ceramic/Terrazo tile floors that are in good
condition and flat to within a tolerance of 3/16" (5mm) over a 10' (3.04m)
span need not be removed prior to installation. Grout lines more than 1/8"
deep and 1/2" wide should be filled using an appropriate leveling compound.
Floor leveling compound must be allowed to dry completely and used as per
the manufacturer’s instructions. If the tile is adhered to a concrete
subfloor, a vapor barrier must be placed directly over the tile subfloor.
Vinyl and linoleum floors must be structurally sound, clean, dry, flat to
within a tolerance of 3/16" (5mm) over a 10' (3.04m) span and fully adhered.
Perimeter glued or loose laid vinyl flooring should be removed. Vinyl floors
overconcrete should not be treated as a vapor barrier. Carpet must be
completely removed before installation of the laminate floor begins and
follow directions for the appropriate subfloor. |
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