Fire Rated/Top of Wall

Top of Wall:

Thermafiber Safing

Mineral wool forming material for use in firestop applications such as floor and wall penetrations and head of wall construction joints.

Available in:

  • 4″ X 24″ X 48″ (40 sq ft bundle)

 Product Data Sheet  Safe Use Instructions/SDS LEED

Thermafiber Knives

– Ideal tools for field cutting mineral wool
– Serrated blades for quick, clean cuts

Available in:

  • 11” knife is a double sided blade
  • 9” knife is a double sided blade
Fire Rated Cavity Insulation:

Thermafiber RainBarrier™ 45

For exceptional performance in rain screen and cavity wall construction applications. RainBarrier 45 provides thermal, fire, acoustical control while efficiently draining water from a wall cavity system. RainBarrier products are non-combustible and complete with wall ties, adhesives, and air barrier systems.

Available in:

  • Regular Colored Fibers
  • Dark Colored Fibers (Rain Screen)
  • From 1″, 1-1/2″, 2″, 2-1/2″, 3″, 3-1/2″, 4″ and custom thicknesses


Product Data Sheet Safe Use Instructions/SDS LEED
Rain Screen/Cavity Wall Question & Answer

Insulation Clips

Product Data Sheet