Owens Corning R10 Thermafiber Fire & Sound Guard Plus mineral wool insulation delivers strong thermal performance, solid sound control, and proven fire resistance for residential and light commercial spaces. It's versatile enough for interior and exterior walls, ceilings, basement walls, and crawl spaces. If you require delivery to ID, MT, OR or WA, please select that delivery zone as pricing and delivery to those states may vary.

Key Features & Design

• Material: Thermafiber Fire & Sound Guard Plus mineral wool insulation designed to provide excellent thermal, noise control, and fire resistance in residential and light commercial construction.
• Non-combustible & durable: Non-combustible, moisture-resistant, non-corrosive, non-deteriorating, and mold-resistant.
• Applications: Suitable for interior and exterior walls, ceilings, basement walls, and crawl spaces.
• Energy & acoustics: Energy-saving thermal insulation with exceptional sound and noise absorption.
• Fire resistance: Fire-resistant insulation for safer spaces.
• Easy to install: Installation is straightforward—Measure & Cut, Squeeze & Insert, Release & Expand—cut with a serrated knife for custom fitting around electrical boxes, pipes, duct-work, wiring, or between non-standard studs and joists; then compress, insert, and let it expand for a snug fit.
• Size options:
  • 2.5" x 16" x 48" — 42.7 Sq Ft per Bag; 8 Batts per Bag
  • 2.5" x 24" x 48" — 64 Sq Ft per Bag; 8 Batts per Bag
• Product Applications: Ceilings, Floors, Interior Acoustics > Ceilings, Interior Acoustics > Floors, Interior Acoustics > Interior Walls, Walls

Designed to balance comfort, quiet, and safety, this insulation line helps you build better living and working spaces with less stress and more confidence. It’s easy to handle, fits a variety of construction scenarios, and keeps you moving toward a more energy-efficient home or project.