HempCrete

for Hempcrete Workshops schedule go here

Non-toxic, breathable, carbon-negative


Hempcrete is natural, alkaline, energy efficient insulation


THC price for Hemp Busting your new home or retrofit: ~$24.20/cubic foot
(supply and install)



Bag dimensions: 31" x 14" x 10" (78 x 36 x 25cm)
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For bag/pallet or LCL please use our order form


Freight Estimates:
Eastern USA - $5-6,000
Mid USA - $6-7,000
West Coast USA - $7-8,000


Note:E.I.N. or Federal Tax ID on the invoice is required for all orders into USA.

Order Here

Weights and Measures

1 x 15 kg bag of Hemp mixed with our 25 kg bag natural cement will make ~4.5 to 5 cubic feet of ”Hempcrete”

Q. How many bags of Hemp for 12" wall ?

A.
Length of wall x Height of wall = total square footage. Divide by 4.5 = number of 15 kg (33 lbs) bags of hemp you'll need.


Q. How many people do I need to Hemp Bust my new house or retrofit ?

A.
6-8 with enthusiasm !!!


Q. How much will it cost me to cast my Hemp/Lime?

A.
Allow 1 person for mixing, 1-2 persons forming, 1 person hauling and 2-3 people placing = 6-8 workers at their regional hourly rate per person (and depending on size of mixer) to cast an average of ~142 square feet per day (~4.2 m3).

Allow US$14.20/cubic foot for our hemp-busting team to form/box, mix and cast Hempcrete (
estimate only - each project requires specific survey); if you're interested we invite you to complete our building survey form here and one of our Hemp Technologies Collective team will make contact to discuss your project.

Please note the first 24 minutes is free of charge, after which you will be invoiced at US$84 per hour.

Or, if you're the DIY type with your own people then we can help get you all started for only US$420/day (min. 2 days) -
contact us here



A ton of Hempcrete is estimated to absorb and sequester an additional ~249 kg of CO2 over 100 years.

1 cubic meter (m3) = 35 cubic feet (f3)
1 cubic yard (y3) = 27 cubic feet (f3)
1 Kilogram = 2.2 pounds
1 Metic Ton = 1000 Kilos or 2200 pounds




Typical Insulation Values


R-value (US) = RSI × 5.678263337
RSI (SI) = R-value × 0.1761101838

Construction costs may be reduced by:

  • Shallower foundations
  • 30-40% less lumber, labor in framing
  • Lower transport costs of materials to site
  • Lower finish costs
  • Discounted Insurance costs
  • Reduced mechanical (HVAC) requirements
  • NO termite fumigation needed after build





Typical Hemp Hurd (Shiv) Composition


Cellulose: 44 - 55%
Hemicellulose: 16 - 18%
Lignin: 4 - 28%
Extractive Substances: 4 - 18%
Other Substances: 6 - 7%



pdf sign
Why we Like Hemp+Lime (48kb)
Optimized Energy Model Specifications (56kb)
Hempcrete Tri-Fold (2.9mb)
Information Paper from Bath University (373kb)
Hurd Specifications (57kb)
Thermal Mass (41kb)


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Sample HempCrete block kits available now. Make your own block and see for yourself how easy it is. $50 plus shipping

for USA/Canada customers order here



Hemp Technologies assumes no liability from those who decide to mix and use DIY “Hempcrete” binders. Customers should consult local building permitting offices and/or use a licensed general contractor, architect, and/or engineer for all construction projects."