Insulayment – Underlayment for Glue-Down and Nailed-Down Hardwood or Engineered Wood Floors

Insulayment for glued-down and nailed down hardwood or engineered wood floors Simply glue the pad to a structurally solid concrete or wood sub-floor, and then adhere the planks directly to it. For ceramic tile use latex modified thin set mortar both below and above the Insulayment. The sub-floor and installation materials must be in accordance with industry standards as outlined by the National Wood Flooring Association for wood floor applications, the Tile Council of America for ceramic and porcelain tile and natural stone applications.

The randomly air-laid filaments create a capillary affect to cushion the floor and absorb impact sound. The 1/8″ thickness helps smooth out little subfloor imperfections.

When used with ceramic, the elasticity of Insulayment resists the transferring of concrete subfloor cracks through to the tile or grout above. It also provides excellent bond strength with adhesives and thin set mortars.

The insulating value of Insulayment helps keep floors warm in the winter, and cool in the summer.

Our high-temperature manufacturing process kills bacteria and fungus, while and antimicrobial additive inhibits mold growth.

Insulayment can eliminate some of the time-consuming and potentially hazardous “tear out” of old flooring associated with remodeling. As long as the existing floor covering is still adhered tightly to a level, even and structurally solid subfloor, and is free from excessive wax, grease or sealants, Insulayment can be glued directly to old vinyl composition tile (VCT) or non-cushioned sheet vinyl. Thus eliminating the potential problem of exposing harmful asbestos elements.
Approved for use over radiant heated floors.

Insulayment was designed as an isolation barrier to dampen impact noise going from an upper living area to a lower living area. Glued-down or nailed-down wood floors are approved floor covering materials for Insulayment. Using Insulayment in wood floor applications will also help to:

  •  Decrease airborne sound traveling from an upper to a lower living area.
  • Improve walking comfort by dispersing the impact energy of each footfall to lessen the strain on knee and hip joints.
  • Smooth out minor imperfections in the sub-floor surface.
  • Improve the thermal insulation characteristics of the flooring assembly.
  • Disperse and “stabilize” normal or seasonal fluctuations in relative humidity that may affect moisture content in the floor covering material and the sub-floor.

In order for any isolation barrier to function correctly, a certain amount of compressibility is required. A completely solid underlayment layer, one that allows no compression, is not an isolation barrier. The unique combination of fiber materials in Insulayment, along with our patented manufacturing process, results in an isolation barrier with the density and compression resistance needed to achieve the benefits mentioned above, while offering optimal support of the floor covering materials.

Although Insulayment has a density and compression resistance higher than most isolation barriers, a certain amount of deflection is to be expected when installed in glued-down or nailed down wood floors. That deflection may cause a minimal amount of friction “floor noise”, especially in nailed-down wood applications. The normal noise factor will vary, from one installation to the next, depending on sub-floor type, sub-floor deflection, species and type of flooring material, fasteners used, relative humidity and the amount of topside pressure applied to the flooring material. For these reasons, “Floor Noise” is not considered a defect.


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