Unfaced Fiberglass Batts

Product Description

Unfaced insulation is a lightweight thermal and acoustical fiber glass insulation made of long, resilient glass fibers bonded with an acrylic thermosetting binder. Where vapor control is required, a separate vapor retarder can be used.






New Construction

  • Wood frame construction – residential homes and light commercial buildings
  • Metal frame construction – commercial buildings
  • Manufactured homes – modular or manufactured housing
  • Engineered wood construction – assemblies framed with 12" to 19.2" on-center cavities, wide-spaced wood trusses or I-joists
  • Suspended ceiling systems – sized to fit above 2 x 4 ceiling panels
  • Interior wall sound control – interior walls and floor and ceiling assemblies (For sound class ratings for wall assemblies, see the appropriate STC values datasheet for either steel or wood framing.)
  • Basement wall insulation



  • Re-insulating attics, crawl spaces
  • Back-fill above suspended ceiling systems

Performance Advantages

  • Formaldehyde-free – will not off-gas formaldehyde in the indoor environment.
  • Thermal Efficiency – provides effective resistance to heat transfer with R-values up to R-38 (RSI-6.7).
  • Sound Control – reduces transmission of sound through exterior and interior walls and floor/ceiling assemblies.
  • Fire-resistant and Noncombustible – (see Specification Compliance).
  • Noncorrosive – does not accelerate corrosion of pipes, wiring or metal studs.
  • Durable – unaffected by moisture, oil, grease and most acids. It will not rot, mildew or otherwise deteriorate.
  • Resilient – bonded glass fibers will not pull apart during normal applications and resist settling, breakdown and sagging from vibration.
  • Flexible – forms readily around corners and curved surfaces.