WECU – WECORK Cork Underlayment

WECU (pronounced “we see you”) is our economical and effective cork underlayment offering:

Acoustic underlayment for sound control

Stress crack protection under ceramic tile, marble and hardwood floors

We are proud of WECU’s flawless track record since its introduction in Florida in 1978. Since then, tens of millions of square feet of WECU cork underlayment have been installed. A special preservative has been incorporated into the cork and binder mixture making WECU impenetrable to moisture. The density this process creates provides both effective sound control as well as stress crack protection. It is by far the most reliable cork underlayment on the market.

Read our Choosing the Best Cork Underlayment blog article for help with selection!

Order an Underlayment Sample Kit, otherwise contact your local store or contact WE Cork for samples.

Item # Item Name Dimensions Avalability sf/sheet or roll sf/pallet
Soundless Cork underlay for ceramic tile, hardwood & laminates
W-4’X3’X 1/2″ WECU Soundless+ Sheet ½” 3’ x 4’ x 1/2” In stock 12 1800
W-3’X4′ X 6MM (1/4″) WECU Soundless Sheet ¼” 3’ x 4’ x 6mm In stock 12 2100
Warm & Quiet Cork underlay for hardwood & laminates
XYZ-4’X50’X 6MM Warm & Quiet+ Roll ¼” 6mm x 4′ x 50′ In stock 200 1800
XYZ-6MM 2X3 BOX Warm & Quiet+ Sheet* ¼” 6mm x 2′ x 3′ Arriving April 168 3696
XYZ-4’X100’X 3MM Warm & Quiet Roll 1/8” 3mm x 100′ x 4′ Arriving April 400 3600
XYZ-2mm-VB Warm & Quiet 2mm with vapor barrier 2mm x 40″ x 32.8′ NEW!
Arriving April
107.64 3767.4
XYZ-2’X3’X 1/2″ Warm & Quiet Sheet ½” 1/2″ x 2′ x 3′ In stock 6 900
Silently LVT Rubber/cork underlay for LVT & LVP
W-SILENTLY Silently LVT Roll 40″ x 50′ x 2mm In stock 166.66 4166.5

WECU Crackless+

Provides superior isolation of ceramic tile, marble and stone from existing and future stress cracks.

After its introduction in the fall of 2001, Crackless+ has been gaining increasing popularity due to the following attributes:

High Density Resilience derived from the combination of rubber and cork, Crackless+ offers protection from stress cracks created from settling of new construction or structural movement in existing buildings.

Ease of Installation is assured by Crackless+’s small and very portable roll size, and the use of typical tile setting materials. No mixing, no waiting, no mess – an installers delight.

Low Profile is guaranteed by Crackless+’s uniform 3/64″ thickness, which will give protection over just existing cracks or offer valuable insurance for the entire floor.

Economical due to the attributes mentioned above, and its low cost, Crackless + offers unparalleled protection with minimal investment of time and money.

WECU Silently-LVT

2mm Rubber and Cork underlayment for LVT and Linoleum floor covering.

  • Offers superior in room as well as floor to ceiling sound control with minimum thickness.
  • Thermal insulation from cold subfloors.
  • Resilience and comfort to LVT and Linoleum flooring.
  • 100% recycled content.
  • Resistant to mold and mildew.

WECU Silently+

A two in one product, which offers both sound control as well as a vapor barrier under floating floors. Silently+ is a low profile, easy to install rubber cork product with superior and economical sound control. 2mm thickness.

WECU Soundless

Meets typical building codes for sound control for buildings with a suspended ceiling under ceramic tile, and non suspended ceilings under hardwood and laminate. 6mm/1/4″ thickness.

WECU Soundless+

Meets typical building codes for wood joist structures with or without suspended ceiling and provides superior sound control for concrete substrates with or without a suspended ceiling. 1/2″ thickness.

WECU Warm & Quiet (3mm)

Underlayment for laminate and engineered wood floors
Its closed cellular structure makes for an excellent answer for footsteps that cause loud resonance within the room and the cause of the highest complaints for laminate flooring. “It makes a fake floor sound real”

Unlike foam products that are on the market, this product will not compress and lose its efficacy over time.

Warm & Quiet also adds thermal insulation, taking the edge off on and below grade floors. Reduces energy costs in cold months.

Warm & Quiet has significant insulation value for transmission sound from the floor to the room below. It has a Delta IIC 25, which is tested in an Independent Lab and shows the improvement of Warm & Quiet on a 6” slab, non-suspended ceiling.

WECU Warm & Quiet+ (6mm)

Underlayment for laminate and engineered wood floors.

Warm & Quiet+ has all the above attributes plus:
Higher thermal insulation value, equals more energy savings.
Higher sound control rating for wood engineered and laminate floors.

WECU Warm & Quiet (1/2″)

Underlayment for laminate and engineered wood floors.

This 1/2″ version of Warm & Quiet has the highest thermal insulation value and sound control ratings of the three Warm & Quiet options.

Technical Cork Underlayment Information

Forming HOA Sound Isolation Guidelines The purpose of this information is to provide Homeowner’s Associations information relating to the acoustical performance of floor/ceiling assemblies. This should facilitate the establishing of HOA sound isolation guidelines to meet the needs of their building. This information is for guideline purposes only. Each building is unique. The building should […]

WECU Cork Underlayment Installation Instructions The following installation instructions cover the various types of WECU cork underlayment for different scenarios. MATERIALS CERAMIC TILE: Larger than 4″ x 4″ tile THIN SET (sanded): to meet ANSI A 118.4 for latex Portland Cement. All ceramic tile installation must conform to ANSI A108 WECU: WECU Crackless for stress […]

ACOUSTICAL NATURE Due to 200 million air cells per cubic inch, WECU Soundless TM offers extremely efficient sound reduction, while premium sound ratings are achieved with WECU Soundless+TM. The high compression ratio of our cork quality prevents cracking of ceramic tile as well as grout. RESILIENCE Due to its resiliency and high tensile strength, WECU […]

WE Cork 3 Part Specs for Cork Underlayment include General (Part 1), Products (Part 2), and Execution (Part 3).

Acoustic underlayment for effective sound control. The Impact Insulation Class (IIC) ratings in the tables below demonstrate how WECU Cork underlayment provides superior sound control across various scenarios: WECU IIC on Wood Joist – Light Weight Concrete Floor System * TEST REFERENCE SUBFLOOR Susp. Ceiling WECU Floor Covering IIC RAL-TL91-95 & RAL-IN91-3 1.5″ light wt. […]

WECU Cork Underlayment products are warranted to be free from manufacturing defects in material as well as workmanship for an interim period of 20 years from the date of the purchase. Any claim concerning thickness, width, length or other visible proof of defects or false compliance of the clients specified order, can only be accepted […]

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