R-6.5 Acoustical Unfaced Fiberglass Board, 1-1/2 x 24 x 48, 8-Pack

High-performance unfaced fiberglass board designed for acoustical and thermal control. The 1-1/2 in thick Earthwool board delivers R-6.5 insulation with lightweight handling, ideal for ductwork, equipment, and wall assemblies.

Key Features:

• Acoustic + Thermal Control: R-6.5 unfaced fiberglass board reduces noise and heat transfer
• Easy to Work With: Lightweight, cuts and fits easily for faster installation
• Durable Performance: 3 pcf density resists sagging and maintains form in panels and ducts
• High Temperature Rating: Suitable for applications up to 1000°F (per manufacturer data)
• Healthy Indoor Air: Low-emitting material with GREENGUARD Gold certification noted by manufacturer

Specifications Table:

Frequently Asked Questions (FAQ):

Q: Is this board faced or unfaced?
A: Unfaced—ideal when a vapor retarder is not required or when a separate facing will be applied.

Q: What are the board dimensions and R-value?
A: Each board is 1-1/2 in thick by 24 in wide by 48 in long with an R-value of 6.5.

Q: Can it be used for HVAC ducts?
A: Yes. It’s commonly used for thermal and acoustical treatment of HVAC ducts and equipment housings.

Q: What is the density?
A: 3 pounds per cubic foot (3 pcf).

Q: What temperature can it withstand?
A: Rated for service temperatures up to 1000°F per manufacturer specifications.

Quiet Confidence in Earth-Toned Texture

This acoustical board hushes a room with a refined, earthy presence, turning functional insulation into a discreet design ally. Its dense, unfaced profile slips behind panels or inside soffits, elevating sound quality while preserving clean lines. Wrap it in perforated metal or fabric for a bespoke wall feature that balances warmth and precision. It’s an elegant essential for spaces that demand serene, luxurious acoustics.

Upgrade your project’s comfort and clarity—add this R-6.5 acoustical fiberglass board 8-pack to your cart today.