Meet HempWool R7 Hemp Insulation - All Sizes, an eco-friendly solution rooted in hemp fiber that delivers solid thermal performance for exterior walls, floors, ceilings, and more.

Key Features & Design

• Density: 2.81 lbs/ft³ (45Kg/m³)
• Thermal Conductivity: 0.040W/m.K
• Thermal Resistance: R3.69/inch, providing a standard R-value of 3.7 per inch
• Vapor Permeability: 0.647 Perms (37ng/Pa.s.m²)
• Ignition Time: 6.67 sec
• Fire Safety: treated with biobased, non-toxic fire retardants for increased safety
• Heat and Smoke Release Rates: Low
• Environmental Benefits: USDA Certified Biobased Material with 89.9% organic carbon content. It contributes to the reduction of greenhouse gases and is free from VOCs and Red List Chemicals.
• Environmental Product Declaration: forthcoming in 2023
• Hygrothermal Behavior: Maintains efficiency despite moisture, offering a competitive advantage over inorganic fibers
• Phase Shift Regulation: Provides up to 10 hours of heat retention for 7.5 inches of insulation
• Dimensional Stability: High mechanical strength prevents sagging or settling post-installation
• Applications: HempWool is ideal for exterior walls, floors, ceilings, and more, offering improved air quality and acoustic comfort.

Installation & Safety

HempWool is designed for easy friction fit between wooden or steel frames. It's safe to handle, causing no skin irritation, though dust masks and eye protection are recommended during installation. Panels are shrink-wrapped with compostable plastic film for safe delivery and storage.

Certifications & Standards

ASTM C209, E96, C518, E1354. Currently under evaluation for ICC-ES International Code Compliance (2023).