Foundation™ and Ameriworx™ Series Vinyl Tile: Installation Guidelines
Handling and Storage
- Check deliveries for compliance with orders.
- Do not mix different batches of a color within the same area.
- StaticWorx flooring products, all adhesives, and accessories must be site conditioned at room temperature for two (2) days prior to installation. Temperature shall be 68°F + 5°F and maintained for 48 hours before installation, during installation, and 72 hours after installation.
- Store off ground in a weather-tight enclosure.
- Do not stack pallets.
- StaticWorx flooring tiles are packed back-to-back, face-to-face. Always handle in this manner.
- Do not stack boxes more than 20 high.
- StaticWorx rolls should be stored standing on end and secured to prevent falling. Store rolls so that the labels are facing up to ensure they can be easily read.
Subfloor Grade Levels
IMPORTANT NOTE: Moisture testing as per ASTM F 1869 and/or ASTM F 2170 is mandatory.
The following example displays the three types of subfloor grade levels:
Above Grade – An acceptable above grade floor is a concrete or wood substrate.
Suspended – An acceptable suspended floor is a concrete or wood substrate with a minimum of 18” (460mm) of well-ventilated air space below. It is recommended that an effective moisture vapor retarder be placed upon the ground beneath the air space.
On Grade – An acceptable on grade floor is a concrete substrate partially or completely in contact with the ground. Properly constructed, the concrete slab will be suitably protected from moisture penetration by planned water drainage and incorporated an effective moisture vapor retarder.
Below Grade – An acceptable below grade floor is a concrete substrate in direct contact with the ground. Properly constructed, the concrete slab will be suitably protected from moisture penetration by planned water drainage and incorporated an effective moisture vapor retarder.
Wood Subfloor Recommendations
Types of Wood Subfloors
Single Plywood - This type of subfloor construction shall be installed according to EWA “Engineered Wood Association” (formerly the APA) specifications. EWA underlayment GRADE plywood shall be used and installed according to EWA recommendations.
NOTE: Not recommended wood subfloors: tempered hardboard, untempered hardboard, particle board, wafer board, strand board, fire retarded plywood and board.
Precautions - Wood Subfloors
StaticWorx rubber flooring shall not be laid on wood subfloors that are directly in contact with concrete subfloors on or below grade, even if built on sleepers. All suspended wood floors should have adequate under floor ventilation. It is recommended that an effective moisture vapor retarder be placed on the ground beneath the air space.
- If an underlayment is not used, the surface of the suspended wood floor shall be clean from paint, wax, varnish, oil or old adhesive.
- If you want to install an underlayment over a floor with paint, wax, varnish, oil or old adhesive, a layer of 10 mil polyethylene sheeting shall be installed between the subfloor and the new underlayment being installed.
- All floors shall be prepared for smoothness by sanding.
- All nails shall be countersunk or removed.
- Loose boards shall be nailed down or removed and replaced.
- All gaps and uneven places shall be filled.
All responsibility for warranties and performance rests with the plywood manufacturer
Concrete Subfloor Recommendations
Types of Concrete Subfloors
Many different types of concrete subfloors exist, the only recommended concrete subfloor is American Concrete Institute “ACI” 302 Class 4, 5, & 6.
Light weight concrete, less than 115 lb/ft3 (1841 kg/m3), may have such low strength that it is unsuitable for covering with resilient flooring unless 1 in. (25 mm) or more of standard weight concrete, generally 140 lb/ft3 (2241 kg/m3) or more, is used as a topping.
NOTE: Light weight concrete can take a lot longer to dry. A permanent effective vapor retarder with a low permanence (less than 0.1) having a minimum thickness of 10 mils (ACI 302), shall be placed directly underneath the concrete slab.
Precautions - Concrete Subfloors
The slab temperature of concrete subfloors shall be between 68°F + 5°F. Slab temperature is critical to the set-up time of adhesive. A slab temperature below 68°F will slow down the initial tack of the adhesive, making it necessary to re-roll the flooring at 60 minutes, and again at 90 minutes. A slab temperature above 75°F will increase the initial tack of the adhesive, making it necessary to re-roll the flooring within 3045 minutes rather than the recommended 60 minutes.
An acceptable concrete subfloor shall also meet the following requirements:
All concrete subfloors shall be dry, clean, smooth and structurally sound.
Subfloors shall be tested using both of the following methods:
Testing for moisture using a Humidity Probe and Digital Meter (ASTM F 2170 Standard Test Method for Determining Relative Humidity in Concrete Floor Slabs Using in situ Probes) will require 3 tests for the first 1,000 sq. ft., and at least one additional test for each 1,000 sq. ft. thereafter. Maximum allowable reading shall be 75% RH
- Testing for moisture using a Calcium Chloride test kit (ASTM F 1869 Standard Test Method for MeasuringVapour Emission Rate of Concrete Subfloor UsingAnhydrous Calcium Chloride) will require 3 tests for the first 1,000 sq. ft. and at least one additional test for each 1,000 sq. ft. thereafter. Maximum allowable reading shall be 3 lbs. per 1,000 sq. ft. Contact StaticWorx for Calcium Chloride Test kits.
- An on or below grade concrete floor shall have an effective moisture vapor retarder, according to industry standards. If no moisture vapor retarder is present, then one must be installed. Contact StaticWorx for information.
- The concrete subfloor must be flat to a tolerance of 3/16” in ten linear feet.
- All steel troweled (slick) finished concrete floors need to be properly roughened up (using Blastrac, Diamond Grinder-vac or similar mechanical equipment) to ensure adhesion.
WARNING! Materials should not be installed over building expansion joints.
NOTE: The aforementioned recommendations concern only the bonding characteristics of StaticWorx flooring products to concrete subfloors. The performance of the subfloors should be established according to industry standards (American Concrete Institute “ACI” 302 Class 4, 5 & 6).
Underlayment (Leveling Compounds)
If the subfloor surface is noticeably uneven or out of level, then it should be properly leveled by an experienced underlayment contractor. The leveling materials must be portland cement based and should provide a minimum 3,500 PSI compressive strength (ASTM C 109) and sufficient bond to existing subfloor surface (i.e. Ardex, Laticrete, Duralox, Mapei, or equivalent) and shall be installed as per the manufacturer’s instructions.
All concrete subfloors shall be prepared according to ASTM F 710 Standard Practice for Preparing Concrete Floors to Receive Resilient Flooring.
- Patching cracks, depressions, and concrete control joints should be thoroughly cleaned and filled using StaticWorx PU adhesive, or one of the above mentioned underlayment (leveling compound) according to the manufacturer's specifications.
- Concrete floors shall be dry, clean, smooth, level, and structurally sound. They should be free of dust, solvent, paint, wax, oil, grease, asphalt, sealing compounds, old adhesive, and other extraneous materials.
- All curing, hardening, and bond breaking compounds must be removed. Only mechanical methods for removal are acceptable (i.e. Blastrac, Grinder-Vac or similar equipment). Do not use chemicals for removal.
- Do not use wax or oil based sweeping compounds.
Adhesive Bond Test
This is recommended to determine the compatibility of the adhesive to the pre-prepared subfloor and can be a useful indicator if the moisture results are marginal. Use the specified flooring and recommended adhesive, install full tiles or 3' x 3' sheet approximately 50' apart throughout the area. Areas next to walls or other light traffic areas should be selected for the bond test. Tape down the perimeter of the flooring to prevent drying of the adhesive at the edges. After a minimum period of 72 hours the flooring should be pulled from the subfloor. If an unusual amount of force is required, the bond could be considered sufficient.
NOTE: If the subfloor is radiant heated, contact StaticWorx, Inc. for correct installation recommendations.
Steel Subfloor Recommendations
For information about acceptability and preparation of steel subfloors, please contact StaticWorx, Inc. Technical Department at 617.923.2000.
Existing Subfloor Recommendations
Permanent Floor Finishes
Terrazzo, Quarry Tile, Ceramic Tiles, Marble
Types of Bonding Agents
- Mud Cement Setting - This is a suitable bonding agent for permanent floors. Application may be made over such a subfloor.
- Epoxy & Urethane Coatings -This can be a suitable subfloor. The bond must be carefully checked. Look for loose areas and check for proper bond. If an Epoxy coating has failed, please contact StaticWorx, Inc.
- Thin Set - This is not a suitable bonding agent. Remove tiles and clean the surface.
- All glazed or uneven ceramic tiles, quarry tile, terrazzo, marble, and epoxy or urethane coatings shall be Blastraced or sanded for a rough and level surface.
- All paint, wax, varnish, old adhesive, etc., shall be mechanically removed.
- All sealers and topical coatings shall be mechanically removed.
- An adhesive bond test should be performed, refer to “Concrete Subfloor Preparation.”
- Level all grout joints and depressions with 2-Part Acrylic adhesive or a proven underlayment, according to manufacturer’s specifications.
Non-Permanent Floor Surfaces
NOTE: These ARE NOT acceptable subfloors. They are not permanent, and bonding is difficult. Any installation over these floors becomes the responsibility of the owner.
Vinyl Asbestos Tile (VAT), Vinyl Composition Tiles (VCT), Asphalt Tile, Vinyl Tile & Sheet Goods.
CAUTION: Existing floor covering may contain asbestos (federal, local and state restrictions shall be followed).