Owens Corning Thermafiber Fire & Sound Guard Plus mineral wool insulation delivers exceptional thermal performance, superior sound control, and reliable fire resistance for both residential and light commercial spaces. Non-combustible and moisture-resistant, it stands up to the demands of interior and exterior walls, ceilings, basement walls, and crawl spaces.

Note: If you require delivery to ID, MT, OR, or WA, please select the corresponding delivery zone as pricing and delivery may vary.

Key Features & Design:

• Material: Thermafiber Fire & Sound Guard Plus mineral wool insulation.
• Non-hazardous properties: Non-combustible, moisture-resistant, non-corrosive, non-deteriorating, and mold-resistant.
• Design & flexibility: Designed for interior and exterior wall applications; easy to cut and fit around irregular spaces.
• Performance: Energy-saving thermal insulation; exceptional sound and noise absorption; fire-resistant.
• Ease of installation: Easy to install with straightforward cut, squeeze, and expand steps (see below).
• Size & coverage:
  • 5.5" x 15" x 47" — 24.48 Sq Ft per Bag, 5 Batts per Bag
  • 5.5" x 23" x 47" — 37.53 Sq Ft per Bag, 5 Batts per Bag
• Product Applications: Ceilings; Floors; Interior Acoustics (Ceilings, Floors, Interior Walls); Walls

Installation: Measure & Cut, Squeeze & Insert, Release & Expand

• Measure & Cut — Fire & Sound Guard Plus insulation is easy to cut with a serrated knife for custom fitting around electrical boxes, pipes, duct-work, wiring, or between non-standard studs and joists.
• Squeeze & Insert — The insulation is flexible and pliable; simply squeeze the sides to compress and insert into the desired wall.
• Release & Expand — Once in place, it naturally expands to fill the space, creating a snug, custom fit.

Why settle for drafty rooms when you can upgrade with Fire & Sound Guard Plus? It’s tough enough to handle busy living spaces and quiet enough to keep the neighbors from blaming the noise on your walls.