Hempitecture
HempWool R13 Hemp Insulation (400 Sq Ft/Pallet) - All Sizes
HempWool R13 Hemp Insulation (400 Sq Ft/Pallet) - All Sizes
SKU:316-HWR1316FP
Est Delivery between 6th Feb and
12th Feb.
The option you have selected may be in short supply. To make an enquiry please call us on 281-657-1443 or email us at sales@4us-group.com.
How much will I need?
We recommend adding 10% of additional product to the calculation to account for errors, damages, and obstacles in your project


Product Information
HempWool R13 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
- High Thermal Resistance: With an R-value of 3.7 per inch, it provides excellent thermal efficiency, making it competitive with traditional insulation materials.
- Eco-Friendly: Made from 90% natural hemp fiber, it's a USDA Certified Biobased Material, contributing to the reduction of greenhouse gases and free from VOCs and Red List Chemicals.
- Acoustic Comfort: Ideal for use in exterior walls, floors, and ceilings, it offers improved acoustic properties.
- Easy Installation: Designed for a friction fit between wooden or steel frames, and is safe to handle, causing no skin irritation.
- Cost: May be more expensive than traditional insulation materials, impacting budget considerations for construction projects.
- Long-Term Performance Data: Being a newer product, long-term performance data may be less available compared to traditional materials.
Frequently Asked Questions
The R-value of HempWool R13 Hemp Insulation is 3.7 per inch, making it highly efficient in thermal resistance and comparable to traditional insulation products.
Yes, HempWool is made from 90% natural hemp fiber and is a USDA Certified Biobased Material. It contributes to reducing greenhouse gases and is free from VOCs and Red List Chemicals, making it an eco-friendly option.
HempWool is ideal for exterior walls, floors, and ceilings, offering both thermal insulation and acoustic comfort. Its versatility makes it suitable for a wide range of construction projects.
While HempWool is safe to handle and causes no skin irritation, it is recommended to use dust masks and eye protection during installation to avoid any discomfort or health issues from dust particles.
HempWool has a vapor permeability of 0.647 Perms, which ensures superior humidity management. This feature helps in maintaining a comfortable and healthy indoor environment.
Yes, HempWool is treated with biobased, non-toxic fire retardants, giving it a significant ignition time of 6.67 seconds, which enhances its fire safety profile.
HempWool Insulation adheres to ASTM C209, E96, C518, E1354 standards and is currently under evaluation for ICC-ES International Code Compliance as of 2023.
Technical Specifications
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. |
Length | 48" |
Thermal conductivity | 0.040W/m.K |
Thermal resistance | R3.69/in |
Thickness | 3.5" |
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 |
Datasheets
Delivery Information
Est Delivery between 6th Feb and
12th Feb.
Delivery will always take place on a weekday (Mon - Fri excl. public holidays).
An exact shipping charge will be calculated at checkout based on your order and location.
For more information on shipping view our delivery info page.
Frequently asked questions
Can you help me pick the right materials for my project?
Yes, of course!
Our team is ready to assist you with any questions and queries you may have.
Just reach out to us via any of the following methods:
Call us: 281-657-1443
Email us: sales@4us-group.com
or click the Livechat tab at the bottom of your screen.
How do I track my order?
As soon as your order is dispatched, you'll receive a dispatch email with delivery dates and details for your order.
If you require an update on your order, you can email deliveries@4us-group.com with your order number for assistance.
Can I order now and pay later?
Yes, we offer a variety of flexible payment options to all our customers.
When checking out online, you'll be able to avail of multiple buy now, pay later options with ShopPay, Klarna or PayPal.
The flexible payment options available to you at checkout will be based on the total value of your order.
For B2B customers, you can apply for a 30-day trade credit account, and you'll also unlock:
- Dedicated trade pricing
- Loyalty points and rewards
- A dedicated account manager
I have a large-scale project, can I get a quote?
Yes, if you are carrying out a construction project that requires a large quantity of materials, email sales@4us-group.com with the following information and we will get back to you with your very own bespoke price quote:
- Delivery postcode and address
- Mobile number
- Company name
- A list of required materials and their quantities
Can I open a pro contractor account?
Yes! Pro contractors can open a B2B account to unlock bespoke pricing, B2B discounts, trade credit, loyalty points, and a dedicated personal account manager.
You can learn more here: Open a pro contractor account
Can I cancel or amend my order after placing it?
Yes, if your order has not yet been processed for dispatch, cancellation/ amendments should be possible.
Our team works quickly to get your order delivered as soon as possible so it is likely that your order will be processed for dispatch within 2-3 hours of purchase.
Contact us immediately via sales@4us-group.com or call 281-657-1443 during opening hours.
If you wish to amend your order after it has been processed by our team, it will be treated as a return or a separate new order.
Read more: Returns