Jobsite Conditions; Subfloors; Subfloor Preparation - ECORE Ebb Motivate Technical Manual

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Installation
I. Jobsite Conditions
1. Installation should not begin until after all other trades are finished in the area. If the job requires other
trades to work in the area after the installation of the floor, the floor should be protected with an
appropriate cover.
2. Areas to receive flooring should be weather tight and maintained at a minimum uniform temperature of
65°F (18°C) for 48 hours before, during, and after the installation.
II. Subfloors
1. Ebb Motivate and Flow Motivate may be installed over concrete, Portland- based patching and leveling
materials, and wood.
NOTE: Gypsum-based patching and leveling compounds are not acceptable.
2. Wood Subfloors – Wood subfloors should be double constructed, rigid and free from movement with a
minimum of 18 inches of well-ventilated air space below.
3. Underlayments – The preferred underlayment panel is American Plywood Association (APA)
underlayment grade plywood, minimum thickness of 1/4-inch, with a fully sanded face.
NOTE: Particleboard, chipboard, Masonite and lauan are not considered to be suitable
underlayments.
3. Concrete Floors – Concrete shall have a minimum compressive strength of 3000 psi. New concrete slabs
should cure for a minimum of 28 days before installing. Concrete must be fully cured and permanently dry.
III. Subfloor Requirements and Preparation
1. Subfloors shall be dry, clean, smooth, level, and structurally sound. They should be free of dust, solvent,
paint, wax, oil, grease, asphalt, sealers, curing and hardening compounds, alkaline salts, old adhesive
residue, and other extraneous materials, according to ASTM F710.
2. Subfloors should be smooth to prevent irregularities, roughness, or other defects from telegraphing
through the new flooring. The surface should be flat to the equivalent of 3/16˝ (4.8 mm) in 10´ (3.0 m).
3. Mechanically remove all traces of old adhesives, paint, or other debris by scraping, sanding, or scarifying
the substrate. Do not use solvents. All high spots shall be ground level and low spots filled with an
approved Portland-based patching compound.
4. All saw cuts (control joints), cracks, indentations, and other non-moving joints in the concrete must be
filled with an approved Portland-based patching compound.
5. Expansion joints in the concrete are designed to allow for expansion and contraction of the concrete. If a
floor covering is installed over an expansion joint, it will likely fail in that area. Use expansion joint covers
designed for resilient flooring.
6. Always allow patching materials to dry thoroughly and install according to the manufacturer's instructions.
Excessive moisture in patching material may cause bonding problems or a bubbling reaction with the
E-Grip III adhesive.
HAZARDS:
SILICA WARNING – Concrete, floor patching compounds, toppings, and leveling compounds can contain
free crystalline silica. Cutting, sawing, grinding, or drilling can produce respirable crystalline silica (particles 1-
10 micrometers). Classified by OSHA as an IA carcinogen, respirable silica is known to cause silicosis and
other respiratory diseases. Avoid actions that may cause dust to become airborne. Use local or general
ventilation or provide protective equipment to reduce exposure to below the applicable exposure limits.
Ebb Motivate and Flow Motivate Technical Manual
www.ecoreathletic.com
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