1. This specification refers to Expanko Cork flooring
   
   
2. Installer is defined as competent experienced personnel assigned to install the flooring material
   
   

1.02 Installer Experience Level

1. A. Installer must be experienced and competent in the installation of resilient tile flooring materials. Installer must install tile as per instructions provided by Expanko, Inc.
   
   

1.03 Description of Work

1. A. Prepare sub-floor per manufacturers instructions in areas specified to receive Expanko Cork flooring.
   
   
2. Install flooring material using manufacturers recommended installation products in accordance with manufacturers instructions.
   
   
3. Finish, clean and protect floor per manufacturers recommendations.
   
   

1.04 Delivery, Storage and Handling

1. All flooring materials are to be delivered to the job site 72 hours prior to installation.
   
   

Part 2 - Products

2.01 General

1. Product recommendations and installation and maintenance instructions are based upon Expanko Cork flooring.
   
   
2. B. Contact Expanko, Inc. for detailed instructions on sub-floor preparation, installation and maintenance.
   
   

2.02 Approved Manufacturers

1. Expanko, Inc. (610) 436-8300. www.expanko.com
   
   

2.03 Submittals

1. Submit product data, samples and installation and maintenance recommendations for each item specified.
   
   
2. Submit two samples approximately 6" X 6" in dimension to illustrate product shade, design and finish. Samples will be used as a standard for material to be installed.
   
   

2.04 Warranties

1. Manufacturer shall provide a ten (10) year warranty against manufacturing defects.
   
   

2.05 Materials

1. Cork flooring shall meet the following specifications.
   1. Expanko Cork flooring shall be made of 100% granulated cork. Tile shade shall be consistent throughout the thickness of the tile.
   2. Style: Specify number as listed on manufacturers sample
   3. Physical Properties:
      1. Dimensions: Specify tile dimension and thickness in inches
         1. Standard dimensions: 12" X 12" and 24" X 24" in 3/16" and 5/16" thickness.
         2. Custom dimensions: Specify exact dimensions in inches.
      2. Finishes: Specify heat cured oil modified matte polyurethane, natural carnauba wax or unfinished.
      3. Slip resistance: Material shall exceed all ADA requirements
      4. Fire resistance: .437 W/m2K
      5. Density: 31.22 lbs/ft3
      6. Material shall meet Federal specification LLL-T-43 lb, Type 1 & 2.
   4. Cork floor tile shall be coated on the back side with a balancing material to prevent tile curling.
   5. Tiles shall be packaged face to face in shipping and storage cartons.
      
      

Part 3 - Execution

3.01 Sub-Floor Preparation

1. Prepare concrete or plywood sub-floor according to manufacturers recommendations
   
   
2. Conduct calcium chloride moisture tests to ensure that moisture emission levels are less than 3 lbs/1000ft2/24 hours.
   
   
3. On concrete sub-floors, apply a water based primer/sealer as recommended by manufacturer.
   
   
4. Provide detailed sub-floor preparation guidelines to those responsible for sub-floor preparation.
   
   

3.02 Application

1. Floor tile installation shall commence when all other trades have completed work.
   
   
2. Conditions on site for acclimation and installation must be maintained for 72 hours prior, during and 72 hours after installation between 65ºF and 75ºF with relative humidity between 45% and 75%.
   
   
3. Compare tile with submitted samples to ensure installation of the correct materials.
   
   
4. Inspect material as it is installed for manufacturing defects.
   
   
5. Maintain sub-floor temperature for 72 hours prior, during and 72 hours after installation between 65ºF and 75ºF.
   
   
6. Install Expanko Cork flooring material according to manufacturers instructions.
   
   
7. Tile pattern: (specify).
   
   
8. Install material using only those adhesives, sealers and floor preparation materials recommended by the manufacturer.
   
   
9. Floor covering shall be rolled with a 3 section 100lb. roller 3 times after installation.
   
   
10. Provide detailed manufacturers installation instructions to floor installer.
    
    

3.03 Curing, Cleaning and Protection

1. After installation, the cork floor tiles will require a minimum of 72 hours to set. Do not sand, finish or clean floor during this period. After 72 hours, the floor should be cleaned with a well wrung-out damp mop and a mild detergent such as ivory liquid. Do not clean unfinished tiles with any liquid before finish application.
   
   
2. On wax finished tiles, apply and buff an additional coat of paste wax after installation.
   
   
3. On unfinished tiles apply either three coats of paste wax or three coats of polyurethane as recommended by the manufacturer.
   
   
4. Only foot traffic shall be permitted on floor for 72 hours after installation. Do not use rolling carts, ladders or any other object on the floor that can cause damage.
   
   
5. Protect the floor against scratching and gouging with material suited to the type of traffic it will be submitted to during the completion of construction/renovation.
   
   
6. AAfter completion of construction, the floor shall be cleaned according to manufacturers instruction.
   
   
7. Provide manufacturers detailed post-installation maintenance instructions to those responsible for post-installation maintenance.