PARADISO Tongue and Groove Locking System Flooring Instruction Manual

: June 13, 2024
: PARADISO

PARADISO Tongue and Groove Locking System Flooring

Product Information

The product is called “Paradiso” and it is a flooring material with a Tongue & Groove locking system. It has an Oil Finish. The installation instructions provided in the user manual are specifically for this locking system.

Important Notes

Before installing, it is crucial to read and sign the PRE-INSTALLATION Checklist.
The installation should be reviewed with the homeowner to ensure their understanding.
The homeowner or customer must be present and approve the planks before installation.
Sample boards may not always match the material, so homeowners should approve the material before installation.
Read all instructions and warranty thoroughly before starting installation.
For warranty validity, it is essential to follow all installation instructions.
Pre-inspect the job site before delivery.

Installation Options

The two installation options available are:

Staple with glue assist
Full spread glue

Grading Standards
The flooring material must meet specific grading rules and must be properly dried before installation. Failure to comply with these standards may result in warranty exclusion.

Climate Control
Prior to installing the permanent climate control system, a temporary system that provides proper temperature and humidity conditions must be in place and remain until the permanent system is operational. Flooring installation should be done last.

Color Variation
There may be color variation in the flooring material. It is recommended to acclimate the material by leaving it in the installation area for a certain period after installation. Damage caused by handling, environment, installation, or maintenance issues will not be considered for installation warranty claims.

Sub-Floor Preparation
The sub-floor should be inspected prior to installation. Any imperfections or uneven spots should be leveled using a Portlandleveling compound. Concrete sub-floors should be tested for moisture using the Anhydrous Calcium Chloride or Humidity Probe & Digital Meter methods to avoid moisture-related issues.

Installation Tools
The user manual does not provide specific information about the required installation tools. It is recommended to contact the localdealer for guidance on suitable tools for the installation process.

NWFA & Industry Standards
The product complies with NWFA (National Wood Flooring Association) and industry standards. Specific ASTM standards formoisture abatement systems, such as ASTM F1869 for Calcium Chloride and ASTM F2170 for Humidity Probe & Digital Meter, are mentioned as references. It is important to follow the directions provided by these standards for moisture abatement.

Caution: Asbestos
It is advised to avoid sanding or scraping old vinyl flooring, as state and federal agencies have determined asbestos to be a respiratory carcinogen.

The direction of Installation in Relation to Joist Direction

The user manual does not provide specific guidance on the direction of installation in relation to the joist direction. It is recommended to consult with the local dealer or a professional installer for the best practice in this regard.

Acclimation
The flooring material should be acclimated by leaving it in the installation area for a certain period before installation. This helps it adjust to the normal environmental conditions and ensuresoptimal performance.

Moisture Testing
Prior to installation, moisture testing should be conducted. It is recommended to take moisture readings using appropriate devices, such as the Anhydrous Calcium Chloride or Humidity Probe & Digital Meter, following the specified guidelines. Documenting the results is important for warranty coverage.

Immediate Installation
If the moisture levels of the sub-floor meet the specified requirements, the flooring material can be installed immediately.

Product Usage Instructions

Before starting the installation process, read and understandall the instructions provided in the user manual.
Ensure that the PRE-INSTALLATION Checklist is read, signed, and followed.
Review the installation process with the homeowner or customer to ensure their understanding.
Obtain approval from the homeowner or customer for the planks to be installed.
Inspect the job site before the delivery of the flooring material.
Choose either the staple with glue assist or full spread glue installation option
Follow the grading standards and ensure that the flooring material is properly dried.
Set up a temporary climate control system to maintain proper temperature and humidity conditions until the permanent system is operational. Install the flooring last.
Be aware that there may be color variation in the flooring material. Acclimate it by leaving it in the installation area for a certain period after installation.
Prepare the sub-floor by leveling any imperfections or uneven spots using a Portland leveling compound. Test concrete sub-floors for moisture using appropriate methods such as Anhydrous Calcium Chloride or Humidity Probe & Digital Meter.
Contact the local dealer for guidance on suitable installation tools.
Follow NWFA and industry standards for moisture abatement systems
Take precautions to avoid sanding or scraping old vinyl flooring due to potential asbestos hazards.
Consult with the local dealer or a professional installer for guidance on the direction of installation in relation to the joist direction.
Acclimate the flooring material by leaving it in the installation area for a certain period before installation.
Conduct moisture testing using appropriate devices and document the results for warranty coverage.
If the moisture levels are within the specified requirements, proceed with immediate installation.
Follow appropriate installation methods based on the chosen option (staple with glue assist or full spread glue).
Follow the specific instructions for each installation method, including air pressure settings for staple guns, curing time for adhesive, and nail down procedures.
Complete the installation process as per the user manual guidelines.

Installation Instructions Tongue & Groove

These installation instructions are for the Tongue & Groove locking system only.

Attention! Read Before Installing:

Please read and sign the PRE-INSTALLATION Checklist before proceeding. Please review the installation with the homeowner to ensure that they have full understanding of the document.

Assure the Homeowner or Customer is present and has approved the planks that are laid out to be installed.
DO NOT Install this floor if the homeowner or customer is doubtful of color variation, grading, visual or color itself.
Sample Boards may not always match the material please have homeowners approve the material before installing.

Before starting the installation, read all instructions and warranty thoroughly. Should any questions arise, please contact your local dealer. All installation instructions must be followed for warranties to be considered valid. Pre-inspect the job site prior to delivery of the floor to ensure the structure is suitable for hardwood flooring installation using the following guidelines:

Installation options – Staple with glue assist or full-spread glue. Humidification and/or dehumidification systems may be necessary prior to, during, or after installation to maintain an environment appropriate for the flooring specified. To ensure a successful installation, we need a general understanding of the climate zone the wood floors are being installed in and will work with the builder and property owner to determine what is necessary for the interior finishes to perform as they are intended.

OWNER/INSTALLER RESPONSIBILITY

Inspect the hardwood flooring in well-lighted conditions to ensure proper identification of any potential problems. Carefully inspect the flooring for grade, color, finish, and quality. Material that is subiectively viewed as unacceptable but falls within manufacturer grading norms will not be replaced. Material with visible defects can be returned for replacement through the dealer.
If the flooring is not acceptable, contact Manufacturer and arrange shipment of replacement material and the defective product will be replaced. Once flooring is installed, it must be deemed acceptable by End-user/Homeowner/Contractor.
Temperature and Humidity is very important to control before and after installing your floors. Your skin and wood will react similarly to low humidity in your home. Below 40% humidity your skin will dry and crack, the same will happen when moisture is removed from your wood floors. Your wood floors in particular will develop hairline crack as the planks losemoisture. During excessive low humidity these cracks may become more pronounced. Your wood cabinets, moldings, and furniture may do the same. We do not warrant our wood flooring in dry area conditions when your home humidity falls outside of the 40% – 55% required standard range. Please contact a HVAC contractor about more humidification/ dehumidification details.
Prior to installation of any flooring, the Installer must ensure the job site and sub floor conditions meet the requirements specified in these instructions.
Hardwood flooring installation should be one of the last items completed on the construction project. Limit foot traffic on the finished wood floor.
IF THE FLOORING AS SUPPLIED WILL NOT SATISFY THE CUSTOMER IN FULL, DO NOT PROCEED TO INSTALL. The decision not to proceed must be made within the first 5% or 100 square feet of flooring boxes opened, whichever is less. Open boxes exceeding this amount will not be eligible for return.
Wood flooring could chip or splinter when it is not maintaince properly or in the proper envirnment. Chips and splinters are not covered under the warranty.
DISCLAIMER: SHOULD THE OWNER NOT MAINTAIN A GOOD RECORD OF THE RELATIVE HUMIDITY OF 40% to 55% IN THE INTERIOR OF THEIR HOME THROUGHOUT THE YEAR, OUR WARRANTIES WILL NOT APPLY. WE WILL USE DATA BASED ON YOUR STATE AND TOWN TO DETERMINE WHAT THE HUMIDITY LEVELS ARE.

GRADING STANDARDS

General Rules:
Flooring shall be tongue, grooved and end matched (unless otherwise indicated). Flooring will not be considered Standard Grade unless properly dried.

Grading Rules

Like many flooring and lumber mills, we use a proprietary grade for manufacturing our floors. Proprietary grades are generally referred to as Mill Runs. Instead of separating the lumber into traditional NOFMA/NWFA grades, the flooring is a mix of grades. This enables us to produce wider and longer boards. Manufacturer grading rules allow for filled knots, mineral streak, openchecks, tight checks, and filled checks. Bird peck, pin worm hole, and flag worm hole are acceptable (any insects are killed indrying process). Plank faces may also contain unlimited amounts of heart wood (dark portion of log) and/or sap wood (light portion of log).

Storage and Handling

Handle and unload wood flooring with care. Store in a dry place; make sure to provide at least a four-inch space, using a dry 4″ × 4ª stickers or a dry pallet, that provides enough clearance under boxes for proper air movement. Prior to delivery of flooring, outside doors and windows must be in place. All concrete, masonry, plastering, and other “wet” work must be complete and thoroughly dry prior to flooring installation. Roofing and the exterior shell of the structure must be finished and weather tight with doors and windows installed. The wall coverings should be in place and all painting completed- except for the final coat on the base molding. Room temperature and humidity should be consistent with year-round conditions for at least one week prior to installation. When possible, install base molding after floor installation is complete.

HVAC MUST BE RUNNING WITH A ROOM TEMPERATURE BETWEEN 65°F TO 80°F AND RELATIVE HUMIDITY BETWEEN 40% AND 55%.

Climate Control

If heating and/or air conditioning with proper humidity controls are in operating condition, they need to be turned on. If it is not possible for the permanent system to operate, a temporary system that provides proper temperature and humidity conditions must be in place and remain in place until permanent climate control is operational.

Install Flooring Last

Hardwood floor should be the last trade in the house (before base boards are installed). All concrete, masonry, plastering/drywall, texturing, and painting/primer coats should be completed beforehand. Covering the floor while wet trades are in the house can lead to moisture condensation on the protective paper. Moisture can pull into the paper or be trapped under the surface of materials used to cover the floor. Paper coverings also allow dents and scratching to occur.

Color Variation

Hardwood flooring is a natural product and color variations are to be expected. For best visual effect, shuffle planks from several cartons and do not install boards varying greatly in color next to one another. Dry rack the material with 3-4 cartons and make sure that the homeowner/end user approves the material before installing the floor. Once a floor is installed and deemed acceptable it will not be warranted for any color variation, texture, gloss, or finish claims. Always install the floor when the homeowner/end user is present. There is no exception to this requirement.

Acclimation

As relative humidity varies in different parts of the country, acclimation of the flooring prior to installation is the most important precaution to take in order to ensure a successful installation. Proper acclimation is necessary to adapt the moisture content of the flooring to the conditions of your environment. Improper acclimation can cause the floor to buckle and/or the boards to shrink or cup after installation.

Damage caused by inappropriate handling, environment, installation, or maintenance issues will not be considered in relation to grade.

NOTE : DO NOT OPEN BOXES PRIOR TO INSTALLATION. Boxes to remain completely closed until time of installation.

Sub-Floor Preparation
Sub-floor must be level, dry and free of imperfections. An uneven sub floor will make the floor feel unstable and cause premature damage.

READ THESE INSTRUCTIONS THOROUGHLY BEFORE BEGINNING INSTALLATION. IN ADDITION TO THESE INSTRUCTIONS, WE RECOMMEND THATTHE INSTALLER FOLLOW ALL INSTALLATION GUIDELINES AS SET FORTH BYTHE NATIONAL WOOD FLOORING ASSOCIATION

FLOORING MATERIAL SHOULD BE INSPECTED PRIOR TO INSTALLATION

Responsibility for the suitability of manufacturing flooring and accompanying products for each individual installation cannot be assumed by Manufacturer. The Manufacturer has no control over the Installer’s proper application. Should an individual plank be doubtful as to appearance or dimension, the Installer should not use this piece. Manufacturer will send replacement in a timely fashion.

PRE-INSTALLATION JOB SITE REQUIREMENTS

Manufacturer cannot be held responsible for site conditions. Carefully examine the flooring prior to installation for grade, color, finish and quality. Ensure adequate lighting for proper inspection. If flooring is not acceptable, contact your supplier immediately and arrange for replacement. The manufacturer will not accept responsibility for flooring installed with visibledefects. Prior to installation of any flooring, the Installer must ensure that the job site and sub floor meet the requirements of these instructions. The manufacturer is not responsible for flooring failure resulting from unsatisfactory job site and/or sub-floor conditions. Do not install any planks that the homeowners may not find acceptable.
Flooring should be one of the last items installed in any new construction or remodel project. All work involving water or moisture should be completed before flooring installation. Water and wood do not mix. Installing flooring onto a wet sub- floor will most likely cause cupping, tip & edge raising, telegraphing of core and subsequent gapping and finishing issues.
Room temperature and humidity of installation area should be consistent with normal, year-round living conditions forat least one week before installation of flooring. Optimum room temperature of 70 °F and a humidity range of 40-55% is recommended during installation. Humidity levels below 40% will most likely cause movement in the flooring, including gapping between pieces, cupping and checking in the face.
Store the flooring in the installation area for 72 hours before installation to allow flooring to adjust to room temperature. Do not store the boxes of flooring directly on concrete. These floors need adequate acclimation for moisture equalization prior to installation. Shuffle the boards for best visual mix of lengths and color.

PRE-INSTALLATION SUB-FLOOR REQUIREMENTS

All Sub-floors must be:

Dry and will remain dry: Subfloor must remain dry year-round. The moisture content of wood subfloors must not exceed 11%. Concrete must be tested for moisture content using the Anhydrous Calcium Chloride test method, a noninvasive moisture meter, or a pin/probe moisture meter.
Structurally sound
Clean: Thoroughly swept and free of all debris (If being glued down, the sub-floor must be free of wax, grease, paint, sealers, & old adhesives, etc., which can be removed by sanding)
Level: Flat to 3/16″ per 10-foot radius
Wood sub-floors must be dry and well secured. Screw every 6″ along joists to avoid squeaking. If not level, sand down high spots and fill low spots with a Portland Based leveling patch.
Concrete sub-floors must be fully cured, at least 65 days old, and should have a minimum 6-mil poly film between concrete and ground. Sub-floor should be flat and level within 3/16″ per 10′ radius. If necessary, grind high spots down and level low spots with a Portland leveling compound. All concrete should be tested for moisture prior to installation using the Anhydrous Calcium Chloride test method, a non-invasive moisture meter, or a pin/probe meter. When using a Calcium Chloride Test, the result must not exceed 3 Ibs per 1000 sq. ft. in a 24-hour period.
A moisture test must be performed to ensure that the concrete slab is dry. Remember, a concrete slab on/below grade that measures dry today may become moist in the future due to rising groundwater. Installing a moisture barrier now may be viewed as an insurance policy against concrete becoming wet in the future. The manufacturer is not responsible for site-related moisture issues.

INSTALLATION TOOLS

For All Installation Methods:

Tape measure
Tapping block (a trimmed piece of flooring)
Pencil
Pry bar or pull bar
Wood or plastic spacers (3/8″)
Crosscut power saw
3M Blue Tape (DO NOT ADHERE TO OIL FINISHED FLOORS)
No mineral spirits for all oiled finish floors glue-down only)
For Oil Finish Floors please use adhesives that are compatible and easy to clean such as Bostik Green Force down only

Acceptable Sub-Floor Types:

CDX Underlayment Grade Plywood at least ½” thick (use of osb sub-floor can cause potential movement and Pencil squeaking noise, which is not a manufacturer defect)
Underlayment grade particleboard (staple with glue Chalk line assist or full spread glue-down only)
Concrete slab (staple with glue assist or full-spread glue
Existing wood floor (staple with glue assist or full spread
Ceramic tile (staple with glue assist or full-spread glue.
Resilient tile & sheet vinyl (staple with glue assist or full spread glue-down only)

For Glue-Down Installation Method, You’ll Also Need: Recommended flooring adhesive Trowel per flooring adhesive Manufacturer’s recommendations.

BEFORE STARTING YOUR INSTALLATION

Make sure sub-floor is tested for moisture first and is properly prepared. Since natural flooring expands with any increase in moisture content, always leave at least an expansion space between flooring and all walls. The expansion range depends on the thickness of the floor and any other permanent vertical obstructions (such as pipes and cabinets).
Make sure to have a minimum of 10% waste
This space will be covered up once you reapply base moldings around the room. Use wood or plastic spacers during installation to maintain expansion space.
Work from several open boxes of flooring and “dry lay” the floor before permanently laying the floor. This will allow you to select the varying grains & colors and arrange them in a harmonious pattern. It also allows you the opportunity to select out very dark/light pieces for use in hidden areas in order to create a more uniform floor. Remember, it is the installers responsibility to determine the expectations of what the finished floor will look like with the end user first, and then to cull out pieces that do not meet those expectations.
Begin installation next to an outside wall. This is usually the straightest and best reference for establishing a straight working line. Establish this line by measuring an equal distance from the wall at both ends and snapping a chalk line. The distance you measure from the wall should be the width of a plank plus the thickness of the floor for expansion space.

You may need to scribe cut the first row of planks to match the wall in order to make a straight working line if the wall is out of straight. You may want to dry lay a few rows, (no glue or nails), before starting installation to confirm your layout decision and working line. When laying flooring, stagger end joints from row to row by at least 8″. When cutting the last plank in a row to fit, you can use the cut-off end to begin the next row. If the cut-off end is 8″ in length or less, discard it and instead cut a new plank at a random length and use it to start the next row. Always begin each row from the same side of the room. To draw planks together, always use a tapping block (a short piece of flooring), as tapping the flooring itself will result in edge damage. For best results, flip the tapping block upside down and use the groove edge to tap the tongue edge of the plank being installed. Fit end joints tightly together before tapping long edges together. When near a wall, you can use a pry bar to pry close the side and end joints. DO NOTADHERE TAPE OF ANY KIND TO OIL FINISHED FLOORS. Use straps to hold the installed floors.

EXTERIOR CHECKS

Is exterior soil elevation 6″ below the edge of the flashing?

Does the exterior slope away from the foundation at a rate of 6″ drop in 10′ for soft-landscaped areas and 3″ drop in 10′ for hard-paved areas?

NOTE: Proper drainage away from the structure is absolutely critical to ensure weather-tight conditions and is crucial to proper hardwood flooring performance. If the structure is near a hill, the lot should be graded with a swale to move moisture off the lot and prevent it from coming in contact with the foundation.

CRAWL SPACE VENTILATION

Crawl space earth (or thin concrete slab) should be covered 100% by a vapor retarder of black polyethylene (minimum 6 mil) or any recommended puncture-resistant membrane, such as Class C meeting ASTM D1745. Check local codes for any additional requirements.
The size of available vents should equal 1.5% of the square footage within the crawl space. Relative humidity should be consistent with the interior of the home. The moisture content of sub floor should not vary more than 2% MC from the top of the subfloor to the bottom.
It may be necessary to install temperature/humidity-activated exhaust fans to create more air movement in the crawl space. Uncontrolled humidity and moisture in the crawl space will lead to mold and damage to the structure, as well as the hardwood floor. In these events, a contractor specializing in dehumidifying systems will need to be contracted to keep the crawlspace humidity within proper norms. This is more likely in high-humidity areas.
Ensure that clothes driers are properly vented to the outside of the foundation. Check for signs of plumbing, both pressurized and non-pressurized/drain leaks.

NOTE: Completely sealed crawlspaces (no exterior cross-ventilation) require a dehumidification system as part of the sealed crawlspace design.

BASEMENT MOISTURE & HUMIDITY CONTROL

Basements should be completely weather tight and have proper drainage away from the foundation walls in place to ensure that the basement remains dry.

Rain gutters must be in place to carry moisture away from the house. French drains are recommended, and basement walls should be properly sealed.
The relative humidity of basements should not be more than 10% higher than the upper floors.
Humidity control of the basement is vital to help control mold and prevent damage to the structure and hardwood flooring.
Basement walls should be inspected for cracks and excessive moisture content.
Drains must be placed at basement windows.
Direct sprinklers and irrigation systems away from the foundation. Sprinklers spraying the foundation edge can lead to moisture intrusion into the structure. Drip irrigation systems for plant beds are recommended.

SUBFLOOR MOISTURE TESTING CONCRETE

Since wood flooring is not compatible with wet conditions, the Manufacturer does not warrant against moisture-related issues or related damage under warranty. (See Manufacturer Maintenance & Warranty Guides). This is an industry-standard, and Manufacturers do not offer moisture warranties. However, moisture warranties are offered by various adhesive manufacturers.

NOTE: Due to the porous nature of concrete, vapor emissions are subject to change over the lifetime of the installed floor. Slab moisture emissions are a common cause of damage to hardwood floors. Due to the potential for concrete moisture emissions to increase/decrease over time, and the absence of moisture warranties for wood flooring, choosing an adhesive system that includes moisture abatement properties is prudent.

Adhesive Manufacturers offer moisture warranties for moisture abatement systems that will be conditional. Follow their directions closely to ensure compliance and full warranty coverage. Proper spread rate and coverage are very important. Use proper trowel size and replace trowels at the recommended square footage the adhesive Manufacturer requires to ensure proper application thickness.
Some Adhesive Manufacturers offer adhesive/moisture abatement systems that do not require pre-installation testing of the slab to maintain a moisture warranty. Check with Adhesive Manufacturer to confirm which products they offer, that allow installation without pre-checking/testing the slab.
The Installer is fully responsible for proper installation, and the moisture warranties are fully the responsibility of the adhesive moisture abatement system the Manufacturer chose for the job.

NWFA & INDUSTRY STANDARDS

The NWFA (Industry standard) uses the following test methods to determine optimal conditions for the installation and performance of a hardwood floor. Some Adhesive Manufacturers offer systems that create a vapor barrier to protect the wood flooring from moisture emissions coming up through the slab. Many Adhesive Manufacturers require the tests listed below to be performed prior to installation of the floor. Carefully read and follow the adhesive Manufacturer’s instructions.

CALCIUM CHLORIDE: ASTM F1869

Under ideal conditions, the slab should not be emitting more than 3 lbs. per 1,000 square feet per 24-hour period. Carefully follow the instructions in the test kit to ensure that you get accurate results.

NOTE: The slab emissions can vary based on soil humidity and room temperature. Consult the adhesive Manufacturer’s directions for the moisture abatement system they recommend.

HUMIDITY PROBE & DIGITAL METER: ASTM F2170

This test determines the amount of humidity in the slab. This is an effective way to determine a slab’s potential for emitting moisture. Follow all meter Manufacturer’s guidelines for performing testing. Under ideal conditions, the slab readings should be

75% RH. CAUTION: Post Tension slabs require special care to avoid cutting cables in slab. Cutting post-tension cables can cause serious structural damage and potential fatalities. New concrete slabs require a minimum of 65 days drying time before covering them with a wood floor. The slab must be fully cured. The slab must be comprised of a Portland-based mix with 2,500 PSI of compressive strength.

SUBFLOOR PREPARATION: CONCRETE

For glue-down application over gypsum or lightweight concrete, the same 2,500 PSI rating is required.

NOTE: Some adhesive systems have primers and adhesives that are suitable for use over gypcrete or lightweight concrete and may have different PSI compressive strength requirement. Adhesive Manufacturer is responsible for the performance of their systems over gypcrete or lightweight concrete. Remove all paint, oil, existing adhesives, wax, grease, dirt, sealers, and curing compounds. Do not use solvent-based strippers under any circumstances, as residual solvents can prevent the satisfactory bonding of the vapor barrier and adhesive systems. It is important to ensure a long-lasting bond between the adhesive, the concrete, and the boards.

FOLLOW ALL ADHESIVE APPLICATION INSTRUCTIONS

Industry-standard practice is to use a sanding system with 20 grit # 31 open- face paper to remove loose, flaky concrete. For heavy surface contamination, it may be necessary to bead blast the concrete surface.

NOTE: Adhesive Manufacturers generally recommend prep fillers and patches to repair concrete substrates that are compatible with the adhesive system to be used. Make sure you use the prep products that are recommended by the Adhesive Manufacturer. Subfloor tolerance for a flat surface is 3/16″ within a 10′ radius and 1/8″ in a 6′ radius. These are industry standards established by NWFA. Use a straight edge to determine if the subfloor requires grinding or filling.

NOTE: A quarter is approximately 1/16″ thick and can be used as a thickness gauge. Grind high spots and fill low spots with Adhesive Manufacturer’s recommended filler.
NOTE: Use the filler recommended by the Adhesive Manufacturer.

CAUTION: ASBESTOS

State and Federal agencies have determined that asbestos is a respiratory carcinogen. Avoid sanding or scraping of old vinyl, linoleum and VCT as they may contain asbestos. Take proper precautions and contact an asbestos abatement company to remove any old vinyl or vinyl tile floors containing asbestos. Cut-back adhesive and other types of adhesives can also contain asbestos.

CLEAN THE SUBFLOOR

After all prep work is completed, sweep and/or vacuum the subfloor. Dust and dirt can affect the adhesive or vapor barrier’s ability to adhere to the slab. Installing over Existing Floor Coverings on Concrete Perimeter-glued resilient-vinyl, VCT and rubber tiles are not acceptable underlayments and must be removed.
Terrazzo, tile, and full-spread glue-down vinyls that are dry, structurally sound, and level (as described above) may be suitable as a subfloor for installation. See the adhesive Manufacturer’s guidelines. The manufacturer is not responsible for the performance or suitability of existing flooring products that are not removed from concrete. As indicated above, the surface must be sound, tight, and free of paint, oil, existing adhesives, wax, grease, and dirt.
Terrazzo and ceramic tile must be sufficiently scuffed to assure adhesion. Portland-based products must be used to comply with flatness requirements of 3/16″ in a 10′ radius or 1/8″ in a 6′ radius. See adhesive Manufacturer’s guidelines.
Existing vinyl, tile, or terrazzo are not considered to be vapor barriers, and can still transmit unacceptable moisture levels to hardwood flooring. Existing hardwood flooring must be removed prior to the installation of a new wood floor on concrete.

SUBFLOOR PREPARATION: WOOD

Wood sub floors need to be well nailed or secured with screws. Nails should be ring shanks, and screws must be counter-sunk. The wood subfloor needs to be structurally sound (i.e. without loose boards, vinyl, or tiles). Subfloor tolerance for a flat surface is 3/16″ within a 10′ radius and 1/8″ in a 6′ radius. These are industry standards established by NWFA.
Engineered subfloor panels must be ANS-rated plywood of specified thickness to meet joist spacing specifications listed below, or sound solid lumber subfloor that is a minimum of 3/4″ thick and dry.
for panel products subflooring, check for loose panels and re-nail or screw down loose panels securely. Nails and screws must be countersunk.
Ensure that there is proper expansion space (floor thickness) between the panels.
If panels are not tongue and groove and do not have sufficient expansion space, it may be necessary use a circular saw to create the specified space. Do not see through joints on tongue and groove subfloors.
Check for delamination or damaged areas to subfloor and repair those areas as needed.
Make sure the subfloor is free of debris before beginning installation.
Acceptable Panel Subfloors: Truss/joist spacing will determine the minimum acceptable thickness of the panel subflooring.

A. Truss/joist spacing of 16″ (406cm) o/c or less, the industry standard for single panel sub-flooring is a minimum of 5/8* (19/32″, 15.1mm) CD Exposure 1 plywood subfloor panels 4′ x 8′ panels.

B. Truss/joist spacing of more than 16″, up to 19.2″ (488mm) o/c, the standard is a minimum ¼” (23/32″, 18.3mm) tongue and groove CD Exposure 1 Plywood 4′ × 8′ sheets glued and mechanically fastened. Truss/joist spacing of more than 19.2″ (488mm o/c up to a maximum of 24″ (610mm) requires a minimum 7/8″ tongue and groove CD Exposure 1 plywood subfloor panels, 4’x 8′ sheets, glued and mechanically fastened.

JOIST CROSS-BRACING

A subfloor that is not thick enough to support the span of the joists will cause unacceptable sub floor deflection. An alternative to adding additional plywood on top of the subfloor would be to cross-brace between the joists. The cross-bracing would be done at the appropriate distance on the center to meet specifications and bring the deflection within proper tolerance.
Check with the joist or truss Manufacturer to determine if cross-bracing is allowed with that system. Should it not be compatible with the joist or truss Manufacturer, sheeting the subfloor with a second layer of CD or better-grade plywood would then be the only option. (See double layer subfloors section).

DIRECTION OF INSTALLATION IN RELATION TO JOIST DIRECTION.

The best application is at a 90° angle across the joists. This provides for best stability of the floor. As an alternative, the floor can be installed at a 45°anqle to the joists. The floor cannot be installed in the same direction as the joists without installing an additional sheet of plywood on top of the existing wood subfloor.

DOUBLE LAYER SUBFLOORS

When the subfloor does not meet thickness standards for span between joists, a second layer of plywood is required to stiffen sub floor.
The second layer should consist of nominal ½* (15/32″, 11.9mm) CD exposure 1 plywood subfloor panels, 4’x 8′ sheets, depending on how much correction of deflection between joists is necessary.
The top layer of plywood should be offset by 2′ from joints in first layer of the subfloor and installed in the opposite direction to the bottom sub floor panels. Glue top and bottom layers together with construction adhesive and screw into the truss/joist system every twelve inches. Additionally, nail (ring shank) or staple layers together on a minimum 12″ grid pattern.

EXISTING WOOD FLOOR -ON WOOD SUBFLOOR

When installing over an existing solid hardwood floor already attached to the wood subfloor, ensure that the existing floor is
sound and firmly attached to the subfloor. Install material at a 90° right angle or 45°angle (across grain) of existing hardwood floor.

NOTE: Do not install in the same direction as the existing floor. Do not install over wood flooring glued to concrete.

CEMENTITIOUS PATCH – WOOD SUBFLOOR In the event of moisture, determine source, eliminate it, and allow sub floor to dry. If sub-floor is less than above specified thickness or sanded to thickness less than specified see the above standards for top sheeting.

NOTE: Particle board sheeting of existing wood sub floor and Portland- based leveling compounds are acceptable for glue-down or applications only (they are NOT suitable for nail-down applications).

Acclimation

Wood flooring is a hygroscopic material subject to dimensional change as a result of variations in moisture, temperature, and humidity within the surrounding environment. Wood flooring simply needs to reach a moisture content level in equilibrium with the surrounding environment (EMC) IN WHICH IT WILL BE INSTALLED, AT OR NEAR NORMAL LIVING CONDITIONS (Between 40% -55% RH). The process of reaching this equilibrium is defined as acclimation, which allows the wood to properly adjust itself to the normal living conditions within the structure; that is, the temperature, humidity conditions, and moisture content that will typically be experienced once the structure is occupied and stable indoor climate control is exercised.

NORMAL ENVIRONMENTAL CONDITIONS MUST BE MET TO ENSURE OPTIMAL PERFORMANCE

Heating and ventilating systems are designed and working to maintain an interior relative humidity level between 40% and 55% and a temperature between 65 and 80°F year-round. At manufacturing, flooring is dried to a content of between 7-9% and maintained at a relative humidity environment ranging from 40% to 55%. Ideally, the installation environment will be maintained at the same humidity range.

ACCLIMATION OF ENGINEERED PRODUCTS

To maintain proper relative humidity levels, above 40% and below 55% RH, use of the following equipment is recommended. Failure to maintain humidity range can result in damage to the wood floor.
Air conditioner (of proper size and in working order)
Dehumidifier (if required) to prevent relative humidity levels above 55% Whole House Humidifier (of proper size and in working order) (if required) to maintain relative humidity levels above 40%.
Acclimation is NOT SIMPLY A MATTER OF TIME! It is based on what the living conditions in the house will be. Check Manufacturer Climate Control & Radiant Heat Guide for more details.

A. Prior to delivery of the wood flooring, check and record the job site ambient conditions and the subfloor moisture to ensure they coincide with the wood flooring requirements that have been selected.

B. Upon delivery of the flooring to the job site, recheck and record the temperature and relative humidity in the space receiving the wood floor. The temperature and humidity must be within the manufacturer’s requirements.

C. Upon delivery of the flooring to the job site, recheck and record the MC of the subfloor. Check with your moisture meter manufacturer to determine the correct setting on your meter for the wood subfloor being tested.

Take MC readings of the wood subflooring at a minimum of 20 test locations per 1,000 square feet, and an additional 4 readings per 100 square feet thereafter, and average the results. In general, more readings will result in a more accurate average. Any unusually high or low moisture readings should be isolated and addressed individually. Record, date, photograph, and document all results.
Concrete subfloors must be moisture tested, and adequate moisture control systems should be in place prior to installation of any solid wood floor.
Any unusually high or low subfloor moisture readings should be isolated and addressed prior to wood floor installation.

D. Follow the flooring manufacturer’s moisture testing, acclimation, installation, and maintenance instructions to retain all warranty coverage.

E. When the wood flooring is to the expected in-use (e.g., normal living) and the manufacturer’s required ambient conditions within the facility, and this coincides with the subfloor moisture conditions, and these conditions are being maintained, the flooring may be installed immediately.

GLUE DOWN INSTALLATION

Make sure the subfloor is tested for moisture content first and is properly prepared. Concrete sub-floors, which are on or above grade (ground level), always assume the worst even if they measure dry. We recommend taking the following installation steps to ensure a trouble-free installation:

Testing and documenting moisture content prior to installation
Applying a sealer to the sub-floor as needed
Follow the adhesive Manufacturer’s instructions for proper trowel size, minimum temperature, adhesive set time, and open times before beginning installation of flooring.
Once the spread adhesive has setup sufficiently per the adhesive Manufacturer’s instructions, lay the first row of flooring with the groove facing the wall, and continue laying flooring. Always check your working lines to be sure the floor is still aligned. Use a tapping block to fit planks together but be careful not to let the installed floor move on the wet adhesive while you are working. Always leave at least expansion space(thickness of the floor) between the flooring and all walls or the thickness of the plank and vertical objects (such as pipes and cabinets). Use wood or plastic spacers during installation to maintain this expansion space. Remember to stagger end joints from row to row at least 8″ apart.
When the first section is finished, continue to spread adhesive and orate Tow lay flooring section by section until installation is complete. Use a damp cloth to IMMEDIATELY REMOVE ANY ADHESIVE that gets on the flooring surface. If the adhesive cannot be completely removed with a damp cloth, use the Manufacturer’s recommended adhesive remover.
Never let flooring adhesive dry completely on the finished surface. Walk each section of flooring in order to make sure it is BELOW Grade well bonded to the sub-floor with the adhesive working time.
Flooring planks on the perimeter of the room may require weight Many parts of the soil surrounding a structure are above the floor of any loved ones, consider that on them until adhesive cures enough to hold them down.

NAIL DOWN (WITH GLUE ASSIST) INSTALLATION

Installation Tools

NAIL DOWN Tape measure, pencil, chalk line, table saw, cut-off saw, jamb saw, tapping block, pull bar, spacers, hammer, safety glasses, hearing protection, utility knife, wall spacers, straight edge, broom, speedy square, hardwood floor cleaner, pin/finish nails, glue, air compressor, and shop vacuum. CAUTION: Do not strike the finished edge or surface of the plank. Flooring mallets are intended to activate the mail gun. Striking the edge of the plank with flooring mallets, hammers, or rubber mallets can damage the edge of the planks.
Proper placement of fasteners is critical to the performance of the floor. Overshooting the fastener weakens the tongue and the damage can telegraph to the surface. Care must be taken not to damage the edge of the plank with mallets or the edge of the nail gun. Improper placement will create a noisy floor.

Air Pressure Settings

Glue Assist

You must account for moisture in any installation. In the event, the sub-floor is not within an acceptable moisture tolerance range. Two suggested ways to provide a moisture vapor retarder is to install a Merri underlayment paper. Cut a 1″ channel, in the paper perpendicular to the direction of the floor to be laid, every 12″ on the center. A second option is to roll a coat of moisture barrier over the entire sub-floor to create a moisture retarder. During the installation of the wood, you can then run a minimum ½* bead of approved adhesive (ie Bostik’s Best or Titebond 771 in a caulking tube) on a serpentine motion as shown on the diagram.

STEPS FOR NAIL/STAPLE & GLUE INSTALLATIONS

Before you start, make sure to test the substrate for moisture according to appropriate moisture testing procedures, Moisture Guidelines and Vapor Retarders. Excessive/elevated moisture should not be present. The subfloor should be within acceptable moisture content as per adhesive and wood manufacturer’s recommendation before installing.
Choose a starting wall according to the most aesthetically or architecturally important elements in the room, taking into consideration fireplaces, doors, cabinets and transitions, as well as the squareness of the room. The starting wall will often be the longest unbroken wall in the room.
Expansion space should be left around the perimeter. Measure out from the starting wall the width of one flooring plank plus the appropriate expansion space for the thickness of flooring. Mark two points toward each end of the starting wall and snap a chalk line along the full length of the wall through the marks.
Only use an adhesive approved by the flooring manufacturer. Follow the installation procedure recommended by the adhesive manufacturer, which includes subfloor moisture content, spread rate, trowel size, open time, working time and flash time as necessary.
Trowel spread the adhesive on the subfloor along the chalk line wide enough to allow the first row of flooring to be installed, being careful not to cover the line. A proper roller can also be used if recommended by the adhesive manufacturer. Before proceeding to the next step, follow the adhesive manufacturer’s recommendations for wet lay times.
Lay the tongue side of the first row of flooring along the chalk line. Face nail (top nail) the first row of flooring in place. Place the fasteners approximately 3/4″ from the wall side (groove side) of the board every 4″ to 6″. Once the face nails are set, use 6-d finish nails or the pneumatic finish nailer to blind/edge nail along the tongue of the first row, every 4* to 6″ and every 1″ to 3″ from every end joint. Check to make sure the first row is still straight along the chalk line before proceeding
Trowel spread enough adhesive to install 2-3 more rows.
Install the second row by sliding the groove side on to the tongue of the first row. Blind/edge nail it in to place, with fasteners every 4″ to 6″ and 1° to 3″ from each end joint. Stagger end joints by at least 8. Distribute lengths, avoiding “H” patterns and other discernible patterns in adjacent runs. Stagger end joints of boards row to row a minimum of 6″ for strip flooring, 8″-10″ for 3″ to 5″ plank, and 10″ for plank wider than 5″. (See Figures 8-1 and 8-2).
Continue nailing and gluing 2-3 rows at a time in this manner across theroom. Avoid creating H” patterns (where an end joint is adjacent to another end joint in the second to last row installed. Use cut ends to start the subsequent row, discarding any pieces shorter than 8″.
Most adhesives require that the Installer clean the adhesive off the flooring boards during the installation. Follow the adhesive manufacturer’s recommendations for this procedure.
Trim the last row of flooring to maintain the minimum expansion space at the far wall.
At the far (finish) wall, it may be necessary to face-nail the last 2-3 rows due to the angle of the stapler/nailer. The last row or two of flooring may need to be pulled together using a pulling bar.
Complete the installation by reinstalling or installing new base moldings.
Do not allow foot traffic on the floor for 24 hours after installation is complete.

AFTER INSTALLATION

Flooring should be one of the last items installed in a project. In order to protect the floors while other trades are finishing their work prior to final cleanup and turnover to the owner, use rosin paper. DO NOT use Blue Tape to adhere to the floor (blue tapes may damage the finish). Clean the floor thoroughly before laying the rosin paper to ensure that no debris is trapped underneath. DO NOT USE plastic film or other non-breathing coverings as this can cause the floor to become damaged from humidity buildups.
Remove expansion spacers and reinstall base and/or quarter-round moldings to cover moldings to cover the expansion space.
Dust mop or vacuum your floor to remove any dirt or debris. Install any transition pieces that may be needed (reducers, T-moldings, nosing. etc.). If using the glue-down method, do not allow foot traffic or heavy furniture on the floor for 24 hours

LOW MOISTURE / HIGH MOISTURE WARNING SYSTEM

Adverse Conditions Warning: It is possible at the time of installation to place a device/device on the floor that will warn the consumer when the floor is getting too dry or too damp. It logs the data from the floor and the indoor environment continuously. It is installed within the floor at the time of installation.

Fidbox is a data-logging device that is commonly used worldwide. The device is Blue Tooth connected and the consumer can track the condition of the floor. This gives the consumer the ultimate control of the indoor environment. It is like a check engine light that can warn of pending trouble. Then adjustments can easily be made to climate control to prevent damage to the floor.

Since proper climate and humidity control is required as a standard by the manufacturer and the entire wood floor industry, this device while optional, can make the difference between a successful installation and a site-induced /non-manufacturing-related failure of the wood floor. See Fid Box application instructions at fidbox.net for full instructions on installation and use.

NOTE: The space needs to be acclimated to the engineered wood flooring, more than the other way around.
Remember: 40 to 55% RH and 65° to 80°F is the target for indoor conditions.

DO NOT USE BLUE TAPE OR OTHER TAPES FOR OILED FINISHED FLOORS.

PROTECTION AND MAINTENANCE OF YOUR FLOOR

Lasting beauty can be achieved through purchasing a quality floor covering and providing proper ongoing maintenance.

Eading:
Natural floors contain organic pigments and are subject to fading when exposed to direct sunlight. Where possible, use drapes or other systems to protect your floor from excessive light.

Joints:
Natural flooring reacts to the conditions in the environment. Natural flooring plank systems expand and contract in response to fluctuations in temperature and humidity. Controlling the environment, and maintaining an adequate temperature and relative humidity will minimize the visible effects of normal contraction and expansion. The optimum recommended temperature is between 65°F – 80°F and relative humidity is 40% – 55%. In very dry climates, the use of a humidifier might be necessary.

Photo-sensitivity:
Hardwood floors are photosensitive and will change color as they age or are exposed to U.V. light. In some species, the natural pigmentation will be lost and can develop a “bleached” appearance. In many exotic hardwood species (i.e. Tigerwood), the flooring develops a rich patina that will darken the appearance and enhance the natural beauty of the material. As this is a naturally occurring phenomenon, accelerated with exposure to U.V. light, it is not considered a material defect and is excluded from coverage under the provisions of the Manufacture’s Limited Warranty.

Tips to Minimize Fading/Discoloration

Avoid rubber-backed mats and rugs, as the backing may discolor your floor, recommend using felt underlayment
Change the location of your rugs periodically. Rearrange more frequently if they are placed in front of doors and windows.
Use light-filtering window treatments (i.e. blinds, drapes, window film) that will help prevent sunlight exposure.
Rearrange furniture seasonally to allow the flooring to darken and age uniformly.
The flooring finish can wear off over time in areas of high foot traffic i.e. kitchen and hallways. It is recommended to place a ruo as a preventative measure

If completing a flooring extension or board replacement after the original installation has been down for a period of time, the new flooring will have a lighter appearance. As the material is exposed to natural light, it should eventually blend in with the surrounding areas. However, due to the age of your flooring, surface wear (and/or) exposure to U.V. light, the Manufacturer will not guarantee replacement flooring that will be a 100% match to your existing product.
Remember that color variation is to be expected with natural products. However, should an individual plank be doubtful as to appearance or dimension, the Installer should not use this piece.Follow the instructions on this installation guide as well as the guidelines listed out by the NWFA.
For further detailed installation guidelines, please refer to NWFA (www.nwfa.org) Please note that our Care & Maintenance Instructions are not general for all products, they do apply to each individual product specifically. Please refer to the individual care and maintenance instructions for each product specifically to properly take care of your floors.