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THERMAFIBER products are designed to provide life saving fire protection in curtain wall and perimeter fire containment systems. These products are noncombustible, moisture-resistant, noncorrosive, non-deteriorating, mildew-proof and vermin-proof. 40 & 90 provide thermal insulation, fire protection, acoustical and vapor control in many different fire containment assemblies of 1, 2, and 3-hr ratings.

  • Exceptional performance in Perimeter
  • Fire Containment Systems
  • Provides life saving fi re protection in rated assemblies
  • Fire resistant to temperatures above 2,000°F (1,093°C)
  • Conserves energy, reduces
  • Greenhouse gasses and carbon emissions
  • Highest available recycle content curtain wall insulation.
  • Mold resistant
  • Controls noise and sound

Rockwool AFB®

Rockwool’s AFB® is a lightweight, semi-rigid batt insulation designed specifically for interior wall and floor applications. This stone fiber based* insulation is made from natural stone and recycled content. It’s a green product that provides superior sound absorbency and fire protection for overall occupant comfort and safety. That’s why AFB® is quickly becoming the insulation of choice for today’s green builders in commercial and industrial construction.

Fire Resistant

Rockwool AFB’s combination of stone fiber and recycled content makes this insulation fire resistant. This noncombustible product does not develop smoke or promote flame spread when exposed to flame, making AFB® a critical line of defense in fire protection. In fact, studies have proven that stone or mineral fiber insulations provide a 54% increase in overall fire resistance rating compared to non-insulated assemblies.

Sound Control

Room to room or floor to floor, when Rockwool AFB® is specified for interior wall or floor assemblies, better overall sound control and fire protection are achieved. Compared to other types of insulation, the stone fiber content of AFB provides increased density that effectively reduces airflow and essentially, sound transmissions. Greater noise or sound control is further achieved when thicker AFB® and gypsum board are used together. AFB® thickness ranges from 1.5″ (38 mm) to 3.5″ (76 mm). Testing demonstrates that Rockwool AFB’s inherently higher density and manufacturing process delivers dramatically better airflow resistivity compared to glass fiber. Higher air flow resistivity means better sound attenuation.

*Rockwool’s AFB™ is classified as mineral wool. However, the unique formulation of Rockwool insulation delivers benefits that set it apart from traditional mineral wools. These benefits are only available in stone fiber-based products.

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