ROCKWOOL AFB Unfaced Mineral Wool Batt Insulation 1-1/2 in x 24 in x 48 in (128 sq ft)
Regular price $357.69Unfaced mineral wool batt insulation (AFB)
ROCKWOOL AFB® is a lightweight, semi-rigid stone wool batt designed to improve fire resistance and sound control in interior wall, floor, and ceiling assemblies. Its unfaced mineral wool construction helps resist fire and corrosion for durable performance in commercial/industrial and stud wall applications.
Key Features:
- Fire & Smoke Performance: Rated flame spread index 0 and smoke developed index 0 for added peace of mind in assemblies.
- Acoustic & Thermal Comfort: Stone wool batt helps absorb sound while insulating interior walls, floors, and ceilings.
- Semi-Rigid Fit: Lightweight, semi-rigid batts are designed to friction-fit into stud bays and cavities.
- High-Temperature Resistance: Suitable for hot service applications with a temperature rating up to 1200°F.
- Durable Mineral Wool Construction: Resists corrosion and fire and features very low water vapor sorption (<1% by weight).
Specifications Table:
| Specification | Details |
|---|---|
| Product name | 1-1/2 x 24 in x 48 in, Unfaced, Mineral Wool Batt Insulation, 128 sq-ft |
| Brand | ROCKWOOL® |
| Sub-brand / series | AFB® |
| Manufacturer part number (SKU) | RXAFB1524 |
| Category | Batt Insulation |
| Material | Mineral wool (stone wool / natural stone) |
| Facing type | Unfaced |
| Thickness | 1-1/2 in |
| Width | 24 in |
| Length | 48 in |
| Coverage area | 128 sq-ft |
| Installation type | Ceiling; Floor; Wall |
| Application | For use in commercial/industrial, steel stud interior wall, floor and hot service applications |
| Density | >2.2 pcf (also listed as >2.5 lb/cu-ft) |
| Temperature rating | 1200°F |
| Flame spread index | 0 |
| Smoke developed index | 0 |
| Resists | Corrosion; Fire |
| Special features | Lightweight; Semi-rigid |
| Water vapor sorption | <1% by Weight; <0.02% By Volume |
| Proposition 65 warning | California Residents: Proposition 65 Warning www.P65Warnings.ca.gov |
Frequently Asked Questions (FAQ):
Q: Is this insulation faced?
A: No—this product is unfaced mineral wool batt insulation.
Q: What applications is it designed for?
A: It’s designed for commercial/industrial uses including steel stud interior walls, floors, ceilings, and hot service applications.
Q: What area does one pack cover?
A: One pack covers 128 sq ft.
Q: What are the batt dimensions?
A: Each batt is 1-1/2 in thick x 24 in wide x 48 in long.
Q: How does it perform in a fire test?
A: It lists a flame spread index of 0 and a smoke developed index of 0.
Quiet strength, beautifully concealed
The most luxurious rooms aren’t just seen—they’re felt, in the hush of a wall and the confidence of materials that perform under pressure. ROCKWOOL AFB brings a disciplined, architectural calm to interiors, pairing sound absorption with serious fire resistance in a clean, unfaced batt. Layer it inside steel-stud partitions or between floors to sharpen acoustics and elevate comfort without changing your visual story. It’s the kind of invisible upgrade that makes a space live like a sanctuary.
Upgrade your walls and floors with ROCKWOOL AFB unfaced mineral wool batts for durable fire resistance and quieter, more comfortable interiors.
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