WE Cork Cork Flooring Cork Tiles Cork Floor Tile Specifications, Installation, Maintenance

WE Cork Cork Flooring Cork Tiles  Cork Floor Tile Specifications, Installation, Maintenance

Cork Floor Tile Specifications, Installation, Maintenance & Warranty Information


Density: 34-36 lbs. per cubic foot

Compressibility: At 14,000 psi, 97-100% recovery

Thermal Insulation: .38 K Factor. R Factor = 2.6

Dimensions: WE Cork Tiles are 12 x 12 x 3/16 & 12 x 12 x 5/16. WE Cork planks are 4 x 36 x 3/16, other dimensions and thicknesses available for special orders.

Shades: Dark, Medium & Light

Packaging: Tiles are packaged 36 pieces per carton weighing 20 lbs. Planks are packaged 48 per carton weighing 28 lbs.

Installation: Both tiles & planks are glued down.

Pre-Install Procedures

Click Here to view our Floor Tile Installation Guide Video

Job Site Inspection

The building should be closed in with all outside doors and windows in place. All concrete, masonry, framing members, dry wall, paint and other wet work should be thoroughly dry. The wall coverings should be in place and the painting completed except for final coat on the base molding. When possible, delay installation of base molding until flooring installation is complete. Exterior grading should be complete with surface drainage directing water away from building. All gutters and downspouts should be in place.

Classic Collection Tiles and Planks may be installed on or above grade level. Crawl spaces must be dry and well ventilated.

Sub floor must be checked for moisture content using appropriate testing method.

The installation site should have a consistent room temperature of 60-75 degrees and relative humidity of 50 to 70% for a minimum of seven days prior to installation, during and until occupied, to allow for proper acclimation. Cork flooring should be stored in the environment in which it is expected to perform. Air conditioning/heating systems should be in place and in operation at least 14 days prior to, during and after installation of the flooring.

Cork tiles and planks should be allowed to acclimate in the room that they will be installed in a minimum of three days prior to installation (meeting the above temperature and humidity requirements). When installing in an extremely dry climate the tiles should be allowed to acclimate for a minimum of seven days. Cork flooring should be removed from the box as well as the plastic they are packaged in to allow proper acclimation.

Storage and Handling

Handle and unload with care. Store in a dry place being sure to provide at least a four-inch air space under cartons, which are stored on concrete floors. Flooring should not be delivered until the building has been closed in with windows and doors in place and until cement work, plastering and all other wet work is completed and dry. Check adhesive label for storage limitations.

Sub Floor Requirements

Sub Floors must be:

  • Clean scrape, broom clean, and smooth. Free of wax, paint, oil, sealers, adhesives, curing agents and other debris.
  • Level/Flat Within 3/16 in 10 and/or 1/8 in 6. Sand high areas or joints fill low areas (no more than 1/8 at a time) with a cementatious leveling compound. Follow the instructions of the leveling compound manufacturer. Leveling compounds must be tested for moisture to ensure they are properly cured and within the manufacturers specified requirements for proper installation.
  • Fill any cracks with latex floor filler. Apply a primer or thin coat of adhesive on porous and absorbent sub floors to prevent adhesive from disappearing into the surface.

Structurally Sound Wood sub floors should be at least 18 above the ground. Crawl spaces must be covered 100% by a vapor retarder of 6 mil black polyethylene. Vents should be properly located to foster cross ventilation. Nail or screw any loose areas that squeak. Replace any water damaged, swollen or delaminated sub flooring or underlayments. Avoid sub floor with excessive vertical movement unless they have been properly stiffened prior to the installation of the cork flooring. Dry-Check moisture content of the sub floor. Moisture content of wood sub floors should not exceed 12%.

All moisture tests must be documented prior to installation for WE Cork warranty to be in effect. WE Cork recommends 5/8 apa/ul grade plywood sub floor/ underlayment or equivalent. Follow manufacturers instructions for spacing and fastening. Cover existing old floor coverings with 1/4 underlayment grade plywood to be nailed down at 6 intervals throughout the field and 4 around the perimeter using 1 1/4 ring-grooved or resin coated nails.


Cork flooring can be glued directly to concrete. Do not use a concrete sealer nor install over one without prior approval from the adhesive manufacturer to avoid incompatible products and compromise of the bond. Surface preparations using mechanical methods such as sanding or scouring with open coat paper or a titanium disk is preferred. The concrete must be of high compressive strength. Concrete should be at least 60 days old. All moisture tests must be documented prior to installation for WE Cork warranty to be in effect.

All acceptable test methods for sub floor moisture content include:

Calcium Chloride Test. The maximum moisture transfer must not exceed 3 lbs./1000 square feet with this test. If the moisture meter used indicates moisture is present in the slab the calcium chloride test must be run. (A dry slab as defined by these tests can be wet at other times of the year)

In-Floor Radiant Heating

WE Cork Classic Collection tiles and planks are suitable for use with radiant heat. It should be pointed out that the flooring installed over in floor heating might gain moisture or dry out faster. Use of a humidifier is suggested, as well as using an adhesive that is freeze/thaw stable. It is important to follow the adhesive manufacturers recommend guidelines when installing over radiant heat systems. The surface temperature of the floor should not exceed 85 degrees Fahrenheit.


Click Here to view our Floor Tile Installation Guide Video

Installer/Owner Responsibility

Cork floors are a product of nature and therefore, not perfect. The defects may be of a manufacturing or natural type. The installer assumes all responsibility for final inspection of product quality. The inspection of all flooring should be done before installation. Carefully examine flooring for color, finish and quality before installing. If material is not acceptable, do not install it and contact the seller immediately. Prior to installation of any wood-flooring product, the installer must determine that the job site environment and the sub surfaces involved meet or exceed all applicable standards and recommendations of the construction and materials industries. These instructions recommend that the construction and sub floor be dry, stiff and flat. The manufacturer declines any responsibility for job failure resulting or associated with sub-surface or job site environment deficiencies.

Prior to installation, the installer/owner has final inspection responsibility as to grade, manufacture and factory finish. The installer must use reasonable selectivity and hold out or cut off pieces with defects, whatever the cause.

WE Cork recommends selecting flooring from various cartons during installation to maintain natural color and pattern variation. Exposure to light may cause cork to lighten.

When flooring is ordered, 5% must be added to the actual square footage needed for cutting and grading allowance. Should an individual piece be doubtful as to grade, manufacture or factory finish, the installer should not use the piece.

Use of appropriate products for correcting sub floor voids should be accepted as a normal industry practice.

Installing the Tile

A) Mark center point of the room, divide into four sections by using a carpenters square (for right angles) and chalk line (to mark lines).

B) Spread the adhesive on in one of the four sections (follow adhesive manufacturers directions carefully).

C) Install the first tile with one corner on the center point, install adjoining tiles, sliding each tile into final position to eliminate air bubbles and obtain tightly butted joints. Be sure to clean up adhesive on the floor immediately following adhesive manufacturers instructions.

D) Roll over flooring with a 70-100 lb. roller frequently during and after installation until all tiles and seams are level.


Recommended Adhesives

There are several adhesives that can be successfully used to install our Classic Collection cork tiles and planks. WE Cork strongly recommends and supports the use of contact adhesive. Adhesives with a strong green grab (ie contact adhesive) work the best and are the easiest to install with.

Should you opt to install with other adhesives on our list we recommend you contact the adhesive manufacturer or WE Cork to be sure you are using the correct installation method.

Water-based, Neoprene contact adhesives:

3M Fastbond Water-based adhesive 30-NF Contact Adhesive

  • VOC compliant
  • Goes on green, dries to blue when ready
  • Using a foam roller, apply thin coat on both flooring and subfloor
  • Allow adhesive to dry (as recommended by the manufacturer)
  • Position surfaces carefully before adhering
  • Roll floor to ensure good contact has been established between subfloor and tile

3M Industrial Adhesives and Tapes Technical 1-800-364-3577 www.3M.com

2071 Tuff-Lok X-Link Wood Flooring Adhesive

  • Trowel Recommended: 1/16 x 1/16 x 1/16 Square Notch
  • Install cork flooring into wet adhesive
  • Curled cork tile may require 5-10 minute advance cure time
  • Roll with 80-100 lb roller
  • Adhesive must transfer 100% to the floor tile / plank

W.F.Taylor Co. Inc. Technical Fontana, CA 800-397-4583 Dalton, GA 800-868-4583

Any other water-based, neoprene contact adhesive may also be used.

Urethane adhesives

Excellent adhesives which can be particularly difficult to install cork flooring with. If you have not previously installed cork flooring using urethane adhesives we encourage you to contact either the adhesive manufacturer or WE Corks technical department.


  • Trowel Recommended: 1/8 x 1/8 x 1/8 Square Notch
  • Coverage: 80 square feet per gallon
  • Walk-on-work lay recommended
  • Roll floor to achieve 95% transference of adhesive to flooring to ensure strong bond
  • Flooring that is not flat should be weighted or rolled to ensure proper contact between the flooring and the substrate

Degussa Building Systems, Shakopee, MN Technical 800-243-6739

If another manufacturer is preferred, it is suggested that they be contacted to verify that the adhesive is suitable for cork flooring.


Do not wash for at least 5 days. Sweep or vacuum the floor frequently to avoid buildup of abrasive material. Clean the floor with Bona wood floor cleaner (or equivalent), following the instructions on the bottle (avoid use of excess water on the floor). Occasionally, Bona wood floor refresher may be used to rejuvenate the finish. Products containing wax should never be used on urethane-finished floors.

Wax tiles can be treated with a good quality paste wax and buffed with an electric buffing machine with a lambs wool pad. For heavy cleaning, remove old dirt and wax with a purple abrading pad and re-apply wax.

Varnished tiles can be treated with a liquid polish (never wax) and buffed. To refinish, use a buffing machine with 150 grit paper and follow Finish manufacturers instructions. If you wish to seal a pre-finished floor with additional coats of polyurethane, we suggest a water-based product.

With proper care and maintenance your WE Cork Floor should last a lifetime!

Additional Urethane Application

1. Abrading: Sand the floor with a 150-180 grit paper (or purple abrading pad) to achieve a slightly abrasive surface. This allows the urethane to successfully adhere to the tiles. We recommend using a slow buffing machine.

2. Cleaning: Vacuum and wash the floor completely to rid the surface of all dirt and/or dust created during the sanding process.

3. Applying: The surface must be completely dry and the urethane used must be specified for hardwood and/or cork flooring before applying. We recommend two coats of a water-based urethane, however, the number of applications depends upon preference. Follow the instructions of the urethane manufacturer.

Recommended Refinishing Instructions

1. Finish Removal: Sand the floor with a 75-80 grit sandpaper to successfully remove all of the existing finish. Follow up with a 150-180 grit sandpaper. We recommend using a slow buffing machine as opposed to a belt sander.

2. Cleaning: Vacuum and wash the floor completely to rid the surface of all dirt and/or dust created during the sanding process.

3. New Finish Application: The surface must be completely dry and the polyurethane used must be specified for hardwood and/or cork flooring before applying. We recommend two coats of a water-based polyurethane*, however, the number of applications depends upon preference. Follow the instructions of the polyurethane manufacturer when applying the new finish.

*WE Cork recommends using Bonakemi Traffic.

Please be aware that these instructions are based on refinishing a WE Cork floor.

Whenever possible, it is suggested that the original cork floor manufacturer be contacted. This will achieve exact refinishing specifications, as most cork floors are different.

3 Part Spec



A. All of the Contract Documents, including Drawings and general provisions

1 General Requirements apply to the work of this Section.


A. Work Included: This Section specifies WE Cork Flooring, including the following:

  1. WE Cork Tile Flooring
  2. WE Cork Plank Flooring

B. Related Sections:

  1. Section 03300, Cast-In-Place Concrete; Concrete substrate to receive cork flooring
  2. Section 06100, Rough Carpentry; Plywood underlayment
  3. Section 09618, Cork Underlayment; Cork underlayment under ceramic tile, stone,




A. Provide WE Cork Flooring manufactured by WE Cork, 16 Kingston Road, Unit 6, Exeter, New Hampshire 03833; Toll-free telephone 800-666-CORK;


A. Cork Tile Flooring: WE Cork Tile Flooring, conforming to the following:

  1. Tile Type: Provide WE Cork Tile Flooring of the following shade and finish:

[LW (light waxed)] [MW (medium waxed)] [DW (dark waxed)] [LVM (light Greenshield™ finish)] [MVM (medium Greenshield™ finish)] [DVM (dark Greenshield™ finish)] [LU (light unfinished)] [MU (medium unfinished)] [DU (dark unfinished)]

  • Size: [12 in. x 12 in. x 3/16 in. thick] [12 in. x 12 in. x 5/16 in. thick] [other dimensions and thicknesses available on special order]
  • Edge: Square edge
  • B. Cork Plank Flooring: WE Cork Plank Flooring, conforming to the following:

    1. Type: Provide WE Cork Plank Flooring of the following shade and finish:

    [LW (light waxed)] [LVM (light Greenshield™ finish)] [MW (medium wax)]

    [MVM (medium Greenshield™ finish)]

  • Size: [4 in. x 36 in. x 3/16 in. thick] [4 in. x 36 in. x 3/16 in. thick] [other dimensions and thicknesses available on special order]
  • Edge: [Wax: Beveled edge] [Greenshield™: Square edge]
  • C. Material Properties:

    1. Binder: Urethane
    2. Density: Minimum 34 lb. per cubic foot
    3. Compression at 14,000 psi: 97 100%
    4. Immersion:
      1. Water at 212 degrees F. 3 hours: No disintegration
      2. ASTM Oil #1 at 212 degrees F. 2 hours: No disintegration
      3. ASTM Fuel #1 at Room Temperature 10 days: No disintegration
      4. Hydrochloric Acid at Boiling, 1/2 hour: No disintegration
    5. Dimensional Changes, ASTM D 1770: Less than or equal to 0.5%
    6. Thermal Conductivity, ASTM C 177: R value of 2.6

    D. Adhesives: Adhesive shall be equal to contact adhesive, Bostiks Best, Dritac 6200, Franklin 811, 2071 Tuff-Lok X Link Wood Flooring Adhesive, Chemrex CX-941 as acceptable to cork flooring manufacturer.



    A. Examine substrates and conditions where cork flooring will be installed. Do not proceed with installation until unsatisfactory conditions are corrected.

    B. Concrete Substrate: Subfloor shall be clean and dry, and within acceptable tolerances.

    1. Concrete: Test concrete for moisture using standard calcium chloride moisture test. Moisture content shall be less than 3.0 lb. per 1000 sq. ft. per 24 hour period.
    2. Porous and Absorbent Subfloors: Apply a primer or thin coat of adhesive on porous and absorbent subfloors to prevent adhesive from disappearing into the surface
    3. Fill cracks with latex floor filler

    C. Plywood Substrate:

    Subfloor shall be clean and dry, and within acceptable tolerances. Subfloor shall be a minimum of 18 in. above grade. Provide acceptable subfloor.

    1. Acceptable Underlayment: 1/4 in. APA Underlayment Grade Plywood, fastened to subfloor using 1-1/4 in. ring grooved or resin-coated nails, spaced every 6 in. o.c. in field and every 4 in. o.c. around perimeter
    2. Fill cracks with latex floor filler


    A. Strictly comply with manufacturers instructions and recommendations.

    1. Floor materials shall acclimate for 72 hours in location of installation at a minimum temperature of 66 degrees F
    2. Unpack and inspect flooring materials for defects

    B. Installation:

    Install WE Cork Flooring square to the room or space.

    1. Lay adjoining tiles or planks following number sequence provided by the manufacturer. Ensure that joints and edges are butted firmly
    2. During and after installation frequently roll flooring with a 70 100 lb. roll


    A. Do not wash floor for at least five days following installation.

    B. Regular Cleaning: Vacuum and/or damp mop floor with a mild wood flooring

    detergent or with a solution of one part white vinegar to four parts


    C. Maintenance of Waxed WE Cork Flooring:

    1. Regular Cleaning: Treat waxed WE Cork Flooring with waxed finish with a good quality paste wax (i.e. Butcher wax) and buff
    2. Heavier Cleaning: Remove old wax and dirt with a power buffing machine using 00 steel

    wool disc or 150 to 180 grit sandpaper disc or nylon screen pad. Apply several coats of wax and buff between each coat with a lambs wool pad

    D. Maintenance of Greenshield™ coated WE Cork Flooring:

    1. Where a more shiny appearance is desired, apply liquid polish and/or buff flooring. Do not use wax
    2. Refinishing: Remove old finish with a power buffing machine using 150 to 180 grit sandpaper or nylon screen pad. Apply polyurethane in accordance with manufacturers recommendations

    E. Protect flooring until acceptance.



    Timeless Collection with Greenshield™

    Avant Garde Collection with Greenshield™

    Classic Collection with Greenshield™

    Full Lifetime Structural Integrity Warranty

    WE Cork warrants, to the original purchaser, that its products, in their original manufactured condition, to be free from manufacturing defects in milling, dimensions, and grade for the lifetime of the floor for residential use (5 year limited commercial use**). Structural integrity does not cover normal expansion and contraction that cork floors may experience between boards at different times of the year. If minor separations do occur, they are not covered by this warranty. Cupping or crowning due to excessive moisture or humidity is not covered by this warranty.

    Wear Layer Warranty*

    WE Cork warrants, to the original purchaser, that its surface wear layer will not wear through or separate from the wood for 20 full years for residential use (5 year limited commercial use**), from the original date of purchase, on all prefinished products in the Classic Collection with Greenshield™, Avant-Garde Collection, Timeless Collection and Eco-Nomical Series when used in normal residential traffic conditions.

    * WE Cork recommends using BonaKemi wood floor products or equivalent there of. The use of other products not formulated for wax or urethane finished wood floors may damage your floor and void the warranty.


    The patterns and color variation created in a living tree are like that of nature never repeated. Naturally occurring wood characteristics such as mineral streaks, and variation in grain and color, are not considered defects. Your newly installed floors will vary from samples or pictures shown, this variation is not covered by our warranty. Also, age, character and exposure to sunlight may keep new or replacement flooring from matching existing flooring samples. Because cork flooring is a natural product, it may lighten due to the effects of sunlight and/or Ultraviolet light and these changes are not covered by our warranty. Area rugs should be moved occasionally as they block sunlight and may give the appearance of discoloring under the rug. This is not a product defect.

    WE Cork warranties exclude indentations, scratches, or damages caused by misuse, negligence, accidents, fire, erosion, pets, spiked heel shoes, pebbles, sand, other abrasives, failure to follow all manufacturers specific written installation instructions, lack of proper maintenance, insufficient protection on furniture, and misuse or improper alterations of the original manufactured product. Damage due to water and/or moisture, including, but not limited to damage resulting from broken or leaking pipes, wet mopping, weather conditions or natural disasters, is excluded from WE Cork warranties.

    Gloss reduction is not considered surface wear; therefore it is not covered under this warranty.

    This warranty does not cover:

    1. Labor or other expenses involved with the replacement.
    2. Merchandise, which has been damaged through transportation.
    3. Defects, which are not related to the manufacturing process.
    4. Problems caused after the installation through inferiority of the substrate or infiltration of water from below or above.
    5. Ignorance of our, and the adhesive manufacturers, installation instructions.
    6. Installed merchandise which was visibly defective or not acceptable as specified above.
    7. Verbal promises by our personnel. Only written commitments signed by authorized employees are valid.

    This writing is the complete and exclusive statement of warranty, and is in lieu of all other expressed and/or statutory warranties. WE Cork assumes no liability for incidental or consequential damages. However, some states do not allow the exclusion of incidental or consequential damages, so this exclusion may not apply to you. This warranty gives specific legal rights and you may have other rights as they vary from state to state.




    In the unlikely event that any portion of your WE Cork floor should fail with respect of the provisions of the warranties, WE Cork, Inc. at its sole option, to the original purchaser will repair, refinish, or replace such portion, at no cost to you, with the same product of equal value. In the unlikely event that WE Cork is not able to correct the failure after a reasonable number of attempts, WE Cork will refund, if requested, the purchase price for that portion of the floor that fails.

    To file a claim, first contact the WE Cork retailer where the original purchase was made. If the retailer is unable to satisfy the claim, contact in writing, WE Cork, Inc, 16 Kingston Road, Unit 6, Exeter, NH 03833, Attn: Claims Department. The owner must notify WE Cork or its agent within thirty (30) days after discovering the nonconformity. Claims must be filed within the warranty coverage period. The owner must give WE Cork a reasonable opportunity to examine the claimed nonconformity before undertaking any repairs, removal or replacement. The owner must present the original invoice, bill or other proof of the date of purchase. Compliance with the requirements of this paragraph is a condition to coverage under the Warranty: if these requirements are not complied with, WE Cork will have no obligation to remedy any non-conformities.

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