Full Product Manual
July 2018 Floorworks® Page 4 of 10
Storage
Planks/Tiles must be delivered on-site at least 48 hours before installation. Deliver the material to the job site, remove
them from the pallet, and restack on a hard, flat, smooth surface with a maximum of 5 boxes high. If the material is
flattened, distorted or otherwise damaged during storage or transporting, do not install it.
Preparation
Warnings
All Safety Data Sheets (SDS) and Warranty requirements must be read, understood and followed. The Occupational
Safety and Health Administration (OSHA) has exposure limits for people exposed to respirable crystalline silica; these limits
must be followed. All local, state and federal regulations must be followed, this includes but is not limited to the removal of
in-place asbestos-containing material.
Wooden Subfloors
Unless stated otherwise all wooden subfloors must be prepared in accordance with ASTM F1482 Standard Practice for
Installation and Preparation of Panel Type Underlayments to Receive Resilient Flooring. The substrate must be clean
(without contaminates), dry (≤ 8% moisture content) and structurally sound and smooth enough for the project.
Wood floors must be double layer construction with a minimum total thickness of 1 inch. The subfloor must be rigid, free
from movement, and have at least 18 inches of well-ventilated air space below. Sleepers must not be directly in contact
with concrete or earth, and the ground beneath the subfloor must be covered by a suitable vapor retarder. Do not install
directly over Masonite
TM
, Lauan, fire retardant products, particle or chipboard. Then proceed to “Smooth & Flat”.
Note: Joints in plywood may show (mirror) through to the finished flooring as wood will expand and contract with changes
in ambient humidity levels.
Gypsum Subfloors
Unless stated otherwise all Gypsum subfloors must be prepared in accordance with ASTM F2678 Standard Practice for
Preparing Panel Underlayments, Thick Poured Gypsum Concrete Underlayments, Thick Poured Lightweight Cellular
Concrete Underlayments, and Concrete Subfloors with Underlayment Patching Compounds to Receive Resilient Flooring.
Then proceed to “Smooth & Flat”.
Concrete Moisture
Vapor Retarder & Mitigation:
All on and below grade concrete slabs must have a confirmed and effective vapor retarder installed directly underneath the
slab that meets the requirements of ASTM E1745 Standard Specification for Water Vapor Retarders Used in Contact with
Soil or Granular Fill under Concrete Slabs. If this cannot be confirmed then use a moisture mitigation system that conforms
to ASTM F3010 Standard Practice for Two-Component Resin Based Membrane-Forming Moisture Mitigation Systems for
Use Under Resilient Floor Coverings. This system must be applied following the manufacturer's written instructions.
Moisture Limit:
Testing must be performed in accordance with the current ASTM F2170 Standard Test Method for Determining Relative
Humidity in Concrete Floor Slabs Using in situ Probes. The results must not exceed the following:
MI 1000 Adhesive, 90% RH used Wet-set over porous substrates only.
MI 1000 Adhesive, 90% RH used Semi-dry over non-porous substrates.
MI 1000 Adhesive, 95% RH used Semi-dry over porous concrete subfloors only.
Spray-Lock 6500 Adhesive, 95% RH, 11pH.
Concrete Porosity