PERGO Max Hardwood Instrucciones De Instalación página 2

STORAGE AND HANDLING:
Flooring should be delivered and stored at the jobsite for 48 hours prior to installation to
allow the product to acclimate from prior transport or storage conditions. Flooring should be
stored with at least a four inch air space under cartons. Do not open cartons but do remove
any plastic wrap that may have been used to ship the material. This is especially important if
you live in a very humid or dry climate.
PRE-INSTALLATION & JOB SITE CONDITIONS
SUBFLOOR REQUIREMENTS:
The following subfloor recommendations are intended to complement the installation
of hardwood flooring as an interior finish. Hardwood flooring is not a structural
component. These recommendations are not intended to supersede federal, state
or local building codes, but as with many other interior finish products, may require
modifying existing structural components for a successful installation.
SUBFLOOR RECOMMENDATIONS FOR ALL INSTALLATIONS:
PERGO Locking Engineered Hardwood flooring may be installed over any structurally sound
subfloor that is flat, clean and dry on all grade levels. Do not install in full bathrooms or
powder rooms.
All subfloors should be:
• CLEAN – Subfloor must be clean and free of dirt, curing compounds, drywall mud, wax,
paint, oil, sealers, adhesives or any other material that will affect adhesion. These should
be mechanically removed. Do not install over chemically cleaned substrates.
• FLAT – Within 3/16" in 10' radius (5 mm in 3 m) or 1/8" in 6' radius (3 mm in 2 m).
Sand high areas or joints. Fill low areas with a high compressive strength (min. 3,000 psi)
Portland base compound.
• DRY – Select the appropriate moisture indicator test specifically designed for use with
wood or concrete subfloors. Record moisture test results.
• STRUCTURALLY SOUND – WOOD SUBFLOOR: Nail or screw any areas that are loose
or squeak. Wood panels should exhibit an adequate fastening pattern, glued/screwed or
nailed as that system requires, using an acceptable nailing pattern. Typical: 6" (15 cm)
along bearing edges and 12" (31 cm) along intermediate supports. Flatten edge swell as
necessary. Replace any water-damaged, swollen or delaminated subflooring or underlayment.
Building codes establish requirements for structural support components of flooring systems
which may not provide adequate rigidity and support for proper installation and performance
of a hardwood floor. Whenever possible, install flooring perpendicular to the floor joists for
maximum stability.
NOTE: Avoid subfloors with excessive vertical movement or deflection because subfloor
movement will telegraph through to the finished installation. Indications of excessive
deflection are uneven finish wear, fastener release, squeaking, compromised or damaged
locking systems, sectional contours such as bowing or dipping in floors and uneven flooring
material. Nail or screw subfloor panels to secure boards with excessive vertical movement or
deflection. If the subfloor has excessive vertical movement (deflection) before installation of
the flooring, it is likely it will do so after installation of the flooring is complete. This warranty
does not cover any problems caused by inadequate substructures or improper installation of
said substructures.
• STRUCTURALLY SOUND – CONCRETE SUBFLOOR: Concrete substrate should be at
least 60 days old constructed in accordance with ASTM E1745. Level substrate and fill
all cracks, holes and low spots with a polymer modified Portland cement patch or leveling
compound. Burnished or steel troweled concrete substrates must be inspected for porosity
by placing a few drops of water on the surface. If the water is not absorbed within
3 minutes, the substrate should be considered non-porous. Abrade the surface with
30-grit sandpaper until porosity is achieved.
Subfloor moisture check
NOTE: To increase reliability, subfloor appropriate moisture testing should be performed
after the HVAC system has been in operation for a minimum of 14 days. Excess moisture
on any flooring substrate if not identified and corrected prior to installation will cause floor
covering failure. Warranties DO NOT cover products installed over improperly
prepared subfloors, substrates or environmental related deficiencies.
If subfloor moisture readings exceed recommended levels for wood or concrete, steps
MUST be taken to reduce subfloor moisture. Steps could include waiting for subfloors
to dry to acceptable levels or using an appropriate moisture barrier.
Wood Subfloor Moisture Content
Test both wood subfloor and wood flooring for moisture content using a reliable pin type
moisture meter. The subfloor material must not exceed 12% moisture content. The
difference between the moisture content of the wood subfloor and the hardwood flooring
must not exceed 4%.
NOTE: Basements and crawl spaces must be dry. Use of a 6 mil black polyethylene membrane
is required to cover 100% of the crawl space earth. Crawl space clearance from ground to
underside of joist should be no less than 18" and perimeter vent spacing should be equal to
1.5% of the total square footage of the crawl space area to provide cross ventilation.
Concrete Subfloor Moisture Content
NOTE: New concrete slabs require a minimum of 60 days drying time (must be
fully cured) before covering them with a wood floor. Although initial moisture
tests may indicate a dry slab, the moisture content of slabs may increase due
to seasonal fluctuation or weather patterns. New construction should have a
minimum 10 mil poly membrane between the ground and concrete.
On and below grade applications are
susceptible to moisture and should be
tested for moisture prior to installation in
several locations within the installation
area. Installer should record moisture
test results in the space provided on the
last page of this document and leave
with the owner as part of their records.
The subfloor moisture content should be
tested in accordance with ASTM F2170
latest version RH In Situ Probe.
Acceptable subfloor moisture condition
requirements will vary dependent upon your
selection of adhesive.
Adhesive moisture requirements are not interchangeable between adhesives and vary
dependent upon the subfloor type and conditions.
Concrete:
• Less than 3 lbs./1000 sq. ft./24 hrs. Calcium Chloride Test (ASTM F1869)
• Up to 75% RH Levels in Concrete using In-situ Probes in accordance with the latest
version of ASTM F 2170.
• Test for sealers and curing compounds.
For Floating Installation: We recommend using a premium grade Moisture
Resistant Underlayment specifically designed and tested for use with Locking
Engineered Hardwood Flooring. We are not responsible for damage caused by
inadequate underlayment. Contact the underlayment manufacturer for all claims
related to underlayment.
Wood Subfloors
NOTE: As with many other interior finish products,
modification of existing structural components may
be required for a successful installation.
Solid Wood Subfloors - Direct Glue or
Floating Installations
• Minimum 3/4" (19 mm) thick with a maximum
width of 6" (15 cm) installed at a 45° angle to
the floor joists.
• Group 1 dense softwood (Pine, Larch, Douglas fir, etc.) No. 2 common, kiln dried with all
board ends bearing on joists.
• For glue-down applications add 3/8" (9.5 mm) approved floor panel underlayment.
Existing Wood Flooring – Direct Glue or Floating Installations
• Existing engineered flooring must be well bonded/fastened. When gluing over existing wood
flooring, the surface finish must be abraded or removed to allow adequate adhesive bond.
• Existing solid hardwood flooring that exceeds 6" (15 mm) in width must be covered with
3/8" (9.5 mm) approved underlayment and fastened as required. Do not install over
solid flooring attached directly to the concrete.
To correct any subfloor conditions concerning
moisture, either wait until the subfloor dries
to meet specifications or use an appropriate
moisture barrier. For more information
concerning moisture conditions, contact
Customer Services at 1-800-33-PERGO.
Before you start