PERGO Max Hardwood Instrucciones De Instalación página 3

Wood subfloors should be well nailed or secured with screws. Nails should be ring shank and
screws need to be counter sunk. The wood subfloor needs to be structurally sound (meaning
subfloors without loose boards, vinyl or tile). If sub-floor panels are a single layer, less than 3/4"
thick, add another single cross layer for strength and stability (minimum 3/8" thick for a total
1 1/8" thickness). Underlayment floor panels must be installed sealed side down. When used as
a subfloor, allow 1/8" (3 mm) expansion space between each panel. If spacing is inadequate,
cut in with a circular saw. Do not cut in expansion space on tongue and groove panels.
When installing parallel to the floor joists it may be necessary to increase rigidity of the
structural subfloor system by installing an additional minimum of 3/8" (9.5 mm) approved
underlayment floor panel.
Approved underlayment floor panels should meet or exceed the following:
• Plywood: Must be minimum CDX grade (exposure 1) and meet US Voluntary Product
Standard PS1 performance standard or Canadian performance standard CAN/CSA 0325-0-92.
The preferred thickness is 3/4" (19 mm) as a subfloor [minimum 5/8" (16 mm)] or 3/8"
(9.5 mm) as floor panel underlayment.
• Oriented Strand Board (OSB) : Conforming to US Voluntary Product Standard PS2 or
Canadian performance standard CAN/CSA 0325-0-92 construction sheathing. Check
underside of panel for codes. When used as a subfloor, the panels must be tongue and
groove and installed sealed side down. Minimum thickness to be 23/32" (18 mm) thick
when used as a subfloor or 3/8" (9.5 mm) as floor panel underlayment.
• Wafer board and Chipboard: Conforming to US Voluntary Product Standard PS2 or
Canadian performance standard CAN/CSA 0325-0-92. Must be 3/4" (19 mm) thick when
used as a subfloor and 3/8" (9.5 mm) thick when used as floor panel underlayment.
• Particleboard: Must be a minimum 40-lb. density, stamped underlayment grade and
3/4" (19 mm) thick. (Floating installation only)
Concrete Subfloor
Lightweight concrete: To test for lightweight or acoustical concrete, scrape a coin or key
across the surface of the subfloor. If the surface powders easily or has a dry density of l00
pounds or less per cubic foot, Locking Engineered flooring should be installed as floating only.
Sub-floors other than wood or concrete:
NOTE: Perimeter glued resilient vinyl and rubber tiles are unacceptable underlayments and
must be removed.
Terrazzo, Vinyl, Resilient Tile and Linoleum that are dry, structurally sound and level are
suitable as a sub-floor with proper preparation. As above, the surface must be sound, tight
and free of paint, oil, existing adhesives, wax, grease and dirt. Terrazzo and ceramic tile must
be scuffed to assure adhesion.
Installation over existing VCT, vinyl sheet, plank tile or other non-cushioned resilient flooring
must be skim coated with a quality Portland cement based polymer modified patching /
self-leveling compound (carefully following manufacturer's application instructions) prior to
installation.
Warning! Do not sand existing resilient tile, sheet flooring, backing, or felt linings. These
products may contain asbestos fibers that are not readily identifiable. Inhalation of asbestos
dust can cause asbestosis or other serious bodily harm. Check with local, state and federal
laws for handling hazardous material before attempting the removal of these floors.
Direct Glue Installation: Make sure the floor covering materials are well bonded to the
subfloor/underlayment with full spread adhesive and no more than two layers thick, not to
exceed 3/16" (5 mm). With approved wood/wood composite subfloors, if vinyl or tiles are
loose, broken, or in poor condition, install a 3/8" (9.5 mm) approved underlayment directly
over the flooring materials.
Clean the flooring materials as necessary to remove waxes, sealers or cleaning residues to
allow a good adhesive bond. Cork floor sealers and surface treatments must be removed.
Always check for adequate adhesive bond prior to beginning direct glue installation.
RADIANT HEAT SUBFLOORS
It is important to follow these guidelines strictly. Failure to follow these guidelines
may produce unsatisfactory results.
Only floating installations are approved for radiant heat systems. Direct glue down
is NOT RECOMMENDED.
Before installing hardwood over radiant heat subfloors, determine if the radiant heat system
is rated to be compatible with hardwood flooring. It is highly recommended the radiant
heat system be designed specifically to accept hardwood flooring. Radiant heat systems
designed for floor coverings with a higher resistance to heat transfer such as
carpet will damage wood flooring. Single heat circuit systems designed for use with
multiple floor covering products must be adjusted to work at temperatures suitable for
hardwood flooring. Use of an in floor temperature sensor as well as a separate
thermostat for the individual room is required. An outdoor temperature sensor
should be used to adjust water temperature according to anticipated heat loss.
Note: When radiant heat is installed in concrete, mortar beds, or gypsum cement, it is
very important to operate the radiant heat system until these are completely dry before you
install your hardwood flooring on top. This may take several weeks. Also operate the HVAC
system to allow humidity levels in the area to stabilize (35-55% RH) for the area in which the
hardwood floor will be installed. Allow hardwood to acclimate to this humidity level before
installation. This will minimize dimensional changes due to moisture.
Before installing over a radiant heat floor turn off heat and wait until the floor has reached
room temperature (70°-75°F). After installing the floor, gradually return the heat in 5 degree
increments. CAUTION: The floor surface must never exceed 85°F.
BEFORE YOU START
• Plan your layout and determine the direction of the installation in the room. Planks
installed parallel to windows accent the hardwood best.
• Blending of Cartons: To achieve a uniform installation appearance, preselect and set aside
hardwood planks that blend best with all trims and moldings. Install these planks next to
best blended moldings.
• Remove all wall mounted moldings such as base and quarter round.
• Floor should be installed blending planks from several cartons at the same time to ensure
good color and shade mixture throughout the installation.
• Be attentive to staggering the ends of the boards at least 6" (15 cm) when possible, in
adjacent rows.
• The floating floor underlayment already has double-sided tape for ease of taping the
precut overlapping seams. If a non-adhesive underlayment is used, tape all seams with
moisture resistant tape.
• Do not install in areas of high moisture such as bathrooms and powder rooms.
NOTE: DO NOT USE A RUBBER MALLET TO INSTALL FLOORING. STRIKING
THE SURFACE WITH A RUBBER MALLET MAY "BURN" THE FINISH CAUSING
IRREPARABLE DAMAGE.
PREPARATION:
Undercut Door Casings: Undercut all door
casings 1/16" higher than the thickness of the
flooring materials being installed. To do this,
use a scrap piece of flooring as a guide. Lay
it on the substrate and cut the casing with a
handsaw or use a power jamb saw set at the
correct height. Remove all moldings and wall-
base, and undercut all door casings.
FLOATING INSTALLATION
Underlayment: Use a premium moisture
resistant underlayment designed
specifically for use with floating hardwood
flooring. Underlayment requirements
are very critical to a floating installation.
Excessive pad compression or compaction
is a common cause of seam failure.
Lay the underlayment on the floor with the
moisture barrier facing up. The direction of
the underlayment should be parallel to the
direction of the floor being installed. For
the first row of flooring the underlayment
should be placed so that approximately
1 inch overlaps onto all perpendicular walls. Place the following row next to the first row on
top of the lower moisture barrier overlap. Remove the adhesive strip and fold back the upper
overlap on the second row. Make sure the underlayment fits together tightly (don't leave
gaps). On the last row, place the underlayment 1 inch up the wall. To join rolls on the short
side of the underlayment, use a moisture resistant tape to connect the 2 pieces so water
cannot penetrate the underlayment.
Undercut Door Casings
Figure 2
Figure 2A Figure 1A
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