NOTE: The responsibility for determining if the existing poured-on floor is well-bonded to the concrete, and is not textured enough to show through the final installation, rests with the contractor and the installer.
| Polymeric Poured (Seamless) Floors (1) | Metal – Steel, Stainless Steel, Aluminum, Lead, Copper, Brass, Bronze (2) | Metal – Steel, Stainless Steel, Aluminum, Lead, Copper (2) | Metal – Steel, Stainless Steel, Aluminum (2) | Metal – Steel, Stainless Steel, Aluminum, Lead (2) | Ceramic Tile, Quarry Tile, Terrazzo and Marble (3) | |
| Vinyl Composition Tile (VCT) | X | X | X | |||
| Static Dissipative Tile (4) | X | X | ||||
| Heterogeneous Sheet Homogenous Sheet | X | X | X | X | ||
| Commercial Luxury Vinyl Tile | X | X | X | X | ||
| Residential Luxury Vinyl Tile/Plank | X | X | X | |||
| Engineered Tile (Alterna) (with or without grout) | X | X | X | |||
| Fiberglass-Reinforced Sheet ToughGuard II Sheet | X | X | X | |||
| Locking (Floating) Rigid Core SPC | X | X | X | X | X | X |
Footnotes
(1.) All Armstrong resilient flooring may be installed over polymeric poured floors. For resilient flooring installations other than Rigid Core, the surface must be roughened and then a Portland cement-type underlayment (such as S-194 and S-195 Underlayment Additive ) applied. A thickness of at least 1/4″ of S-194/S-195 must be applied to make it porous enough to install SDT.
Polymeric poured floors must be well cured, have no history of moisture related problems, be free of any residual solvent, smooth, structurally sound and well bonded to a concrete subfloor. Loose or damaged areas must be completely removed and patched with S-194 as necessary. Remove any “nubby” texture with wet, sharp sand and a floor machine equipped with carborundum stones. Do not use a skim coat of latex underlayment to smooth the surface as it will not adhere reliably to the poured-on floor.
(2.) Armstrong Flooring® resilient flooring may be installed over metal substrates subject to adhesive selection. Refer to Adhesives for specific adhesive recommendations.
Metal substrates must be installed according to the manufacturer’s recommendations and must be roughened and cleaned before installation of the floor covering. If there are low places, they should be leveled with S-194 mixed with S-195.
(Some adhesives will require that to install over metal, the surface must be roughened and then a Portland cement-type underlayment applied at a minimum of 1/8” thickness. Mix S-194 with the S-195 Underlayment Additive.)
(3.) All Armstrong Flooring® resilient sheet floors and tile may be installed directly over ceramic tile, quarry tile, terrazzo or marble subfloors on all grade levels which are firmly bonded to a structurally sound substrate.
Clean the floor of all paint, varnish, oil, wax and finishes. Roughen glazed or very smooth surfaces and repair badly fitted joints or cracks with S-466 or S-194. If the floors are badly worn or have low places, they should be leveled with S-466 or S-194.
(4.) To install SDT over metal, the surface must be roughened and then a Portland cement-type underlayment (such as S-194 applied. The S-194 would need to be mixed with the S-195. A depth of at least 1/4″ of S-194 must be applied to make it porous enough to install SDT.
To install SDT over ceramic tile, quarry tile, terrazzo or marble, the surface must be roughened and then a Portland cement-type underlayment (such as S-194) applied. The S-194 would need to be mixed with the S-195. A depth of at least 1/4″ of S-194 must be applied to make it porous enough to install SDT.