Owens Corning R-21 Thermafiber Fire and Sound Guard Plus, 5.5 in x 16 in x 48 in (24 Packs)
Regular price $2,212.27R-21 Thermafiber Fire & Sound Guard Plus Mineral Wool Batts (5.5 x 16 x 48, 24 Packs)
Owens Corning Thermafiber Fire & Sound Guard Plus mineral wool batts deliver R-21 thermal performance with exceptional sound control and fire resistance for residential and light commercial builds. Sized for 16 in on-center framing, these 5.5 in thick batts fit snugly in wall cavities for fast, precise installation.
Key Features:
- Thermal + Acoustic Performance: R-21 insulation with excellent sound absorption for quieter interiors.
- Noncombustible Mineral Wool: Resists fire, moisture, and mold; non-corrosive and non-deteriorating.
- Easy Fit Installation: Flexible batts cut cleanly with a serrated knife and expand for a snug fit.
- Versatile Applications: Ideal for interior/exterior walls, ceilings, basements, and crawl spaces.
- Code-Compliant: Class A interior finish; ASTM C665 Type 1 compliant.
Please check the Product Data Sheet Here
Specifications Table:
| Specification | Details |
|---|---|
| Insulation Type | Mineral wool batt |
| R-Value | R-21 |
| Dimensions | 5.5 in x 16 in x 48 in |
| Pack Count | 24 packs |
| Batts per Bag | 6 |
| Coverage per Bag (5.5 x 16 x 48) | 32 sq ft |
| Applications | Interior and exterior walls, ceilings, basement walls, crawl spaces |
| Key Properties | Noncombustible, moisture-resistant, non-corrosive, non-deteriorating, mold-resistant |
| Standards & Compliance | NFPA 101 Class A-rated interior finish; ASTM C665 Mineral Fiber Thermal Insulation for Buildings, Type 1 compliant |
| Installation | Measure and cut with serrated knife; squeeze and insert; release to expand for snug fit |
Frequently Asked Questions (FAQ):
Q: What framing is this size intended for?
A: The 5.5 in x 16 in x 48 in batts are designed for 2x6 walls with 16 in on-center studs.
Q: How many batts per bag and coverage?
A: Each bag contains 6 batts; coverage for the 16 in x 48 in size is approximately 32 sq ft per bag.
Q: Is it safe near heat sources?
A: Yes, the mineral wool is noncombustible and provides fire resistance; always follow local codes and manufacturer clearances.
Q: Can I cut the batts to fit around obstacles?
A: Yes. Measure and cut with a serrated knife, squeeze to insert, then release to expand for a snug fit.
Q: Where can it be used?
A: Use in interior and exterior walls, ceilings, basement walls, and crawl spaces.
Quiet Strength for Expressive Walls
This mineral wool elevates the envelope with a calm, confident presence—delivering warmth and hush in one refined gesture. I love the dense, tailored profile that slips neatly into a 2x6 cavity, creating a serene backdrop for layered textures and bold art. Pair it with plaster-finish walls and pale oak to let acoustics breathe luxuriously. It’s a discreet essential that anchors a home in comfort and quiet glamour.
Create a quieter, safer, more energy‑efficient space—add Thermafiber Fire & Sound Guard Plus to your cart today.
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