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HempWool R7 Hemp Insulation - All Sizes
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Estimated Lead Time 10-15 Working Days
- HempWool R7 is a sustainable and eco-friendly insulation material, made of 90% natural hemp fiber and 10% polymer fiber, with a competitive R-value of 3.7 per inch.
- It offers excellent thermal efficiency, moisture management, and is treated with non-toxic fire retardants, making it safe and suitable for a variety of eco-conscious construction projects.
- HempWool provides superior humidity control with high vapor permeability (0.647 Perms) and maintains its efficiency in moist conditions, surpassing many inorganic insulation materials.
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View Product »HempWool R7 Hemp Insulation is a revolutionary, eco-friendly insulation material, boasting an exceptional blend of 90% natural hemp fiber and 10% polymer fiber. With a standard R-value of 3.7 per inch, it competes with traditional insulation products in thermal resistance, while offering unique environmental benefits.
Key Features:
- Density: 2.81 lbs/ft³ (45Kg/m³)
- Thermal Conductivity: 0.040W/m.K
- Thermal Resistance: R3.69/inch, providing excellent thermal efficiency
- Vapor Permeability: 0.647 Perms (37ng/Pa.s.m²), ensuring superior humidity management
- Ignition Time: 6.67 sec, treated with biobased, non-toxic fire retardants for increased safety
- Heat and Smoke Release Rates: Low, contributing to overall safety
- 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. An Environmental Product Declaration is 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, enhancing thermal efficiency.
- 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. It's particularly suited for eco-conscious construction projects seeking sustainable, high-performance materials.
Installation and 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 and Standards:
- ASTM C209, E96, C518, E1354
- Currently under evaluation for ICC-ES International Code Compliance (2023)
Pros & Cons
Pros
- Eco-friendly composition with 90% natural hemp fiber and 10% polymer fiber, making it a sustainable choice.
- Competitive R-value of 3.7 per inch, on par with traditional insulation materials in thermal resistance.
- High vapor permeability (0.647 Perms) ensures superior humidity management, enhancing building comfort.
- Low heat and smoke release rates contribute to overall safety in the event of a fire.
- USDA Certified Biobased Material with significant organic carbon content, reducing greenhouse gases and free from VOCs and Red List Chemicals.
- Maintains efficiency in the presence of moisture, an advantage over inorganic fibers.
- Suitable for a variety of applications including exterior walls, floors, and ceilings, especially in eco-conscious construction projects.
- May have a higher upfront cost compared to traditional insulation materials, affecting budget considerations.
- Currently under evaluation for ICC-ES International Code Compliance (2023), which may limit its immediate acceptance in some jurisdictions.
Frequently Asked Questions
HempWool R7 is primarily made of 90% natural hemp fiber and 10% polymer fiber, offering a sustainable and eco-friendly insulation option.
With an R-value of 3.7 per inch, HempWool competes effectively with traditional insulation materials in terms of thermal resistance.
Yes, HempWool is designed for easy friction fit between frames and is safe to handle, causing no skin irritation. However, dust masks and eye protection are recommended during installation.
HempWool is versatile and ideal for exterior walls, floors, ceilings, and more. It's particularly suited for eco-conscious construction projects, but currently under evaluation for ICC-ES International Code Compliance (2023).
HempWool is a USDA Certified Biobased Material with a high organic carbon content. It contributes to reducing greenhouse gases and is free from harmful VOCs and Red List Chemicals.
Its high vapor permeability (0.647 Perms) ensures superior humidity management, and it maintains efficiency despite moisture, giving it an advantage over inorganic fibers.
Yes, HempWool is treated with biobased, non-toxic fire retardants, which provides increased safety with a longer ignition time of 6.67 seconds.
HempWool meets standards such as ASTM C209, E96, C518, E1354, and is currently under evaluation for ICC-ES International Code Compliance.
| Length | 48" |
| Thickness | 2" |
| Average Heat Release Rate | 5.74 (BTU/s/ft2) |
| Brand | Hempitecture |
| Density of insulation | 2.81 lbs/ft3 / 45Kg/m3 |
| Heat Release Maximum Rate | 10.98 (BTU/s/ft2) |
| Ignition Time | 6.67 sec. |
| Thermal Conductivity | 0.040W/m.K |
| Thermal Resistance | R3.69/in |
| Total Heat Release | 642.8 (BTU/s/ft2) |
| Total Smoke Release by Surface Unit | 217.26 (ft2/lb) |
| Vapor Permeability | 0.647 Perms / 37ng/Pa.s.m2 |
60" and 72" are calculated at Checkout
Reach Barriers: Location Based Shipping Rates - Calculated at Checkout
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Delivery will always take place on a weekday (Mon - Fri).
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