Installation Guide

©2019 RI
REV 11.14.2019
6
4. Remove existing resilient floor covering; remove all residual adhesive,
paint or other contaminants following RFCI recommended work
practice.
5. The use of adhesive removers or solvents in the abatement or removal
of existing or old adhesives on concrete prohibited and may void any
warranty.
6. Perform corrective actions necessary for elevated moisture or high
alkalinity conditions.
7. Surface Flatness for all Subfloors: The surface shall be flat to 3/16”
(3.9 mm) in 10 ft. (3050 mm) and 1/32” (0.8 mm) in 1 ft (305 mm)
Bring high spots level by sanding, grinding etc. and fill low spots.
Smooth surface to prevent any irregularities or roughness from
telegraphing through the new flooring.
Leveling and Patching For concrete subfloors, use only high-quality Portland
cement -based materials (minimum 3000 psi compressive strength
according to ASTM C109). Mix with water only, do not use latex.
CAUTION: Do not lightly skim coat highly polished or slick power troweled
concrete surfaces. A thin film of floor patch will not bond to a slick subfloor
and may become a bond breaker causing flooring to release at the
interface of the subfloor and patching material. If in doubt, perform a bond
test prior to commencing with the installation.
WARNING: ASBESTOS & SILICA - Refer to the current Resilient Floor
Covering Institute (RFCI) document “Recommended Work Practices for
Removal of Existing Resilient Floor Coverings” for guidance (www.RFCI.com).
CONCRETE
The concrete must be free of any curing compounds or adhesives.
Even after old glued down carpet has been removed, and the subfloor
has been scraped, it should NOT be assumed that the concrete is
porous. Often the old adhesive has sealed the floor.
A porosity test, using water, should be taken. Be aware that porous
subfloors may take a different adhesive than non-porous subfloors.
See Manufacturer adhesive instructions.
If oil, grease, or other contaminants have deeply penetrated the
concrete, and cannot be thoroughly removed, luxury vinyl flooring
cannot be installed. If latex liquid has been used to seal off old cutback
adhesives, the concrete has become non-porous.