Hempitecture · Insulation
FiberFill Blow-In Insulation
FiberFill is a high-performance thermal and acoustic blow-in insulation made from reclaimed cellulosic natural fibers. Its uniform, odorless consistency and interlocking fibers help fill cavities without gaps and minimize settling.
Designed for exterior walls, floors, attics, crawl spaces and roofs, FiberFill absorbs and releases moisture while maintaining insulating performance. It is formulated for fire, fungi and corrosion resistance and is free from VOCs.
- Applications
- Exterior walls, Floors, Attics, Crawl spaces, Roofs
- Properties
- Reclaimed cellulose fiber, VOC-free, Sound absorbing, Moisture regulating
- R-value per inch
- 3.7
- Bag size
- 25 lb
- Composition
- 86% reclaimed natural fiber, 14% flame retardant
- Wall blow-in density
- 2.99 lb/cu ft
- Attic, ceiling and floor density
- 1.5–1.9 lb/cu ft
- Sound absorption
- NRC and SAA above 0.75 (ASTM C423)
- Format
- Blow-in loose fill
Uses+
Exterior wall cavities, floors, attics, crawl spaces and roofs.
Follow the manufacturer's installation guide for equipment, installed density and coverage requirements.
Sustainability Details+
86% reclaimed natural fiber.
Hempitecture describes FiberFill as carbon-negative, with renewable fibers that store carbon throughout the product's life cycle.
VOC-free and formulated for fire, fungi and corrosion resistance.
