Material Collection
HempLime
HempLime products are a superfood for the building industry. Products made from hemp and lime offer healthier alternatives in insulation, wall systems, textiles, and more because they do not contain harmful petrochemicals. Both hemp and lime absorb carbon dioxide from the atmosphere, and hemp plants also regenerate depleted soils while they grow.
HempLime products are naturally resistant to pests, mold, and fire, eliminating the need for toxic chemical additives. HempLime products also improve interiors because they have excellent acoustic properties and naturally regulate humidity and heat. The insulative properties of HempLime make it an energy-efficient building material and require very little energy to produce. And hemp and lime products are naturally biodegradable. They can be fully recycled and reused to support a zero-waste economy.
Also, the burgeoning hemp industry in the US supports regenerative economies and communities, tackling social justice issues through agriculture and workforce development.
HempLime
14 products
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The goal of our collections is to help promote transparency in the material ingredients of building products by fostering knowledge and awareness of products and materials for which life-cycle information is available, and that have environmentally, economically, and socially preferable life-cycle impacts.
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Low Embodied Carbon
“Embodied Carbon” is the total amount of carbon emitted during the process of making a material. *HML refers to a manufacturer's EPD to determine whether a product's A1-A3 carbon emissions falls within HML's threshold for Low Embodied Carbon.
New Product
This product has been added to the collection within the past six months.
Ingredient Disclosures
There are several ways of evaluating a material’s health that we include with product information. Disclosures are reports by manufacturers about product ingredients, impacts, or other attributes.
Key Disclosures include:
Health Product Declaration (HPD)
A voluntary technical specification for reporting information on product contents and associated health information, intended to be the health-analogue to Environmental Product Declarations (EPDs).
Declare Label
Declare is a transparency platform and product database that answers three questions:
1. Where does a product come from?
2. What is it made of?
3. Where does it go at the end of its life?
Environmental Product Declaration (EPD)
A standardized format for communicating the environmental effects associated with a product’s raw materials extraction, energy use, chemical makeup, waste generation, and emissions to air, soil, and water.
Safety Data Sheet (SDS)
A reporting format that provides basic information about a material’s chemical ingredients, the potential safety hazards to installers, and recommended practices for installation.
Other
Manufacturer | Product | Ingredient Disclosures | ||
---|---|---|---|---|
Sealant | Oil_Hemp | The Real Milk Paint | Hemp Oil |
Hemp OilHemp oil is a healthier finish and works particularly well on wood. The Real Milk Paint’s Hemp Oil is free of additives, preservatives, solvents, and VOCs. It is thinner than tung oil, making it easier to apply without the addition of a solvent. However, hemp oil is less durable and waterproof than tung oil. Hemp oil is food safe and works especially well on lightly used items. CategorySealant, Oil_HempManufacturerThe Real Milk Paint![]() Material composition*Industrial Hemp Oil 100% *as reported by the manufacturer AVAILABLE SIZINGAvailable in 1 oz, 8 oz, 16 oz, 32 oz, and 1 gallon bottles CERTIFICATIONS & DISCLOSURES
Health Product Declaration (HPD)
Declare Label
Environmental Product Declaration (EPD)
Safety Data Sheet (SDS)
Other
Last UpdatedJuly 31, 2019 |
Masonry | Hempcrete | IsoHemp | Hempcrete Block |
Hempcrete BlockIsoHemp’s hempcrete blocks are a non-load-bearing masonry product. These natural, healthy blocks are designed to be used for insulating envelopes, partition walls, and counter-partitions. Made only from hemp and lime, hempcrete’s ability to diffuse accumulated heat makes it a fantastic thermal regulator. This product also regulates humidity due to its permeability and is naturally very fire-resistant, making toxic flame retardants obsolete. Not only are IsoHemp hempcrete blocks good for human health, they also have a positive environmental impact. Their manufacture requires very little energy, and they act as a carbon sink, actively absorbing CO2 from the air. CategoryMasonry, HempcreteManufacturerIsoHemp![]() Material composition*Hemp (particle size of 2 to 20 mm) 80%, Hydraulic Lime 11%, Air Lime 9% *as reported by the manufacturer AVAILABLE SIZING30 cm x 60 cm, available in 6, 9, 12, 15, 20, and 30 cm thicknesses CERTIFICATIONS & DISCLOSURES
Health Product Declaration (HPD)
Declare Label
Environmental Product Declaration (EPD)
Safety Data Sheet (SDS)
Other
Additional DocumentsLast UpdatedJuly 17, 2019 |
Masonry | Hempcrete | Just Bio Fiber | Hempcrete Blocks |
Hempcrete BlocksJust Bio Fiber's hempcrete blocks are a breathable, durable, non-toxic alternative to typical structural wall assemblies. Made primarily from hemp and lime, these blocks are Declare Red List Free as well as naturally fire resistant. Wall systems built with these blocks regulate temperature and humidity while retaining heat. They also do not require a vapor barrier and are resistant to mold, insects, rodents, and mildew. CategoryMasonry, HempcreteManufacturerJust Bio Fiber![]() Material composition*Hemp Hurd 30-50%, Calcium Hydroxide 20-40%, Calcium Carbonate 10-30%, Calcium Magnesium Tetrahydroxide 10-30%, Kaolin 1-10%, Fibrous Glass 1-10%, Silica Sand 1%, Styrene 1% *as reported by the manufacturer AVAILABLE SIZING21.3" x 10.7" x 8" CERTIFICATIONS & DISCLOSURES
Health Product Declaration (HPD)
Declare Label
Environmental Product Declaration (EPD)
Safety Data Sheet (SDS)
Other
Declare | Red List Free
Last UpdatedJune 18, 2021 |
Masonry | Hempcrete | American Lime Technology | Tradical Hemcrete |
Tradical HemcreteAvailable At the Donghia Materials LibraryTradical® Hemcrete® is a highly sustainable hemp-lime product line designed to create insulating walls in new structures or to retrofit existing floors, roofs, and walls with thermally efficient, breathable insulating layers. CategoryMasonry, HempcreteManufacturerAmerican Lime Technology![]() Material composition*Hemp, Lime (Calcium Hydroxide), Hydraulic Lime Binder, Calcium Carbonate, Calcium Silicates, Silica, Oxides of Magnesium, Aluminum, and Iron *as reported by the manufacturer CERTIFICATIONS & DISCLOSURES
Health Product Declaration (HPD)
Declare Label
Environmental Product Declaration (EPD)
Safety Data Sheet (SDS)
Other
Last UpdatedApril 06, 2018 |
Resilient | Limestone | Limeworks | Ecologic Trademark Plaster Takcoat Platinum |
Ecologic Trademark Plaster Takcoat PlatinumTakcoat is a lime plaster that can be used on interior or exterior / applications such as e.g., drywall or masonry. This plaster can be applied without a primer. Limeworks are experts through their experience in masonry, historic restoration with Lime - Naturally Hydrated Lime (NHL).Production with NHL requires less energy, hence the release of CO2 is reduced considerably and NHL reabsorbs most of the CO2 during the curing process. The product contains no Portland Cement, 90% is sourced in the USA. CategoryResilient, LimestoneManufacturerLimeworks![]() Material composition*High Calcium Hydrated Lime (>20%), Recycled Glass Aggregate (<70%), Proprietary Additives (<10%) *as reported by the manufacturer CERTIFICATIONS & DISCLOSURES
Health Product Declaration (HPD)
Declare Label
Environmental Product Declaration (EPD)
Safety Data Sheet (SDS)
Other
Last UpdatedMay 19, 2020 |
Resilient | Limestone | Limeworks | Ecologic Trademark Lime Injection Grout (Type I) |
Ecologic Trademark Lime Injection Grout (Type I)This specific Grout Grade is recommended to fill fine cracks up to a width 1/16 inch. Limeworks are experts through their experience in masonry, historic restoration with Lime - Naturally Hydrated Lime (NHL).Production with NHL requires less energy, hence the release of CO2 is reduced considerably and NHL reabsorbs most of the CO2 during the curing process. The product contains no Portland Cement, 90% is sourced in the USA. CategoryResilient, LimestoneManufacturerLimeworks![]() Material composition*Natural Hydraulic Lime (>99%), Proprietary Additives (<1%) *as reported by the manufacturer CERTIFICATIONS & DISCLOSURES
Health Product Declaration (HPD)
Declare Label
Environmental Product Declaration (EPD)
Safety Data Sheet (SDS)
Other
Last UpdatedMay 19, 2020 |
Textile | Hemp | NYTextileLab | 2/10’s 80/20 wool and hemp blend, Ivory |
2/10’s 80/20 wool and hemp blend, IvoryNew York Textile Lab designs yarns and textiles with an economically diverse and sustainable supply chain at the forefront of their mind. The fibers used are grown on climate beneficial soil within the North Eastern Region. This Hemp Wool Yarn is developed by the Textile Lab and produced with partnering manufacturers in the USA. CategoryTextile, HempManufacturerNYTextileLab![]() Material composition*70% fine wool sourced from Oregon, 30% domestic hemp from Nebraska. *as reported by the manufacturer CERTIFICATIONS & DISCLOSURES
Health Product Declaration (HPD)
Declare Label
Environmental Product Declaration (EPD)
Safety Data Sheet (SDS)
Other
Last UpdatedMay 19, 2020 |
Fibrous, Cellulosic, & Granular Insulation | Hemp | Hempitecture | Hempwool |
HempwoolHempwool insulation has a low carbon footprint, shows excellent insulation values, is hypoallergenic, and due to its ingredients allows for a non-hazardous installation. According to Hempitecture, the mix of 92% hemp fiber and 8% polyester is heated to bond and increase strength. Polyester is petrochemically based and will not biodegrade. Alternatives are other man-made substances, currently. We appreciate this North American-made product and look forward to a healthier option as it evolves. It contains 89% Biobased Content according to Bioprefered.gov. Note: Hempwool's declare R-value is 3.7/inch. CategoryFibrous, Cellulosic, & Granular Insulation, HempManufacturerHempitecture![]() Material composition*92% hemp, 8 % polyester *as reported by the manufacturer CERTIFICATIONS & DISCLOSURES
Health Product Declaration (HPD)
Declare Label
Environmental Product Declaration (EPD)
Safety Data Sheet (SDS)
Other
Biopreferred
Last UpdatedMay 20, 2020 |
Pourables and Aggregates | Hemp Hurd | Hemp Eco Systems Group | HES-hemp hurd |
HES-hemp hurdHemp hurds are the tough woody interior of the hemp plant. It is harvested by decorticating - separating - the inner hurd material from the softer, fibrous exterior of the stalk. The component silica (sand) in the plant prevents from burning or rotting and with the immense strength of the hurd it makes Hemp Hurd an versatile building material - it is used in, e.g., insulation and wall systems. HES Hemp Hurd is mainly from Europe with the US distribution currently on the west coast. CategoryPourables and Aggregates, Hemp HurdManufacturerHemp Eco Systems Group![]() Material composition*100% pure crushed hemp hurd *as reported by the manufacturer AVAILABLE SIZINGHES approved Hemp Hurds in 44 lb bags CERTIFICATIONS & DISCLOSURES
Health Product Declaration (HPD)
Declare Label
Environmental Product Declaration (EPD)
Safety Data Sheet (SDS)
Other
Last UpdatedMay 22, 2020 |
Mineral Paint | Lime | Limeworks | Ecologic Trademark LimeWash Platinum |
Ecologic Trademark LimeWash PlatinumEcologic™ LimeWash Platinum is a mineral coating which bonds as crystals form in the pores of the substrate. It is breathable and due to substrate and mineral joined together, water or salts cannot cause the surface to bubble or flake. Limeworks are serious experts through their profound experience in masonry, historic restoration and working with Lime - Naturally Hydrated Lime (NHL).Due to substantially less energy usage during production with NHL, the release of CO2 into the atmosphere is reduced considerably. Furthermore, Natural Hydraulic Lime (NHL) reabsorbs most of the CO2 during the curing process, while cement reabsorbs none. CategoryMineral Paint, LimeManufacturerLimeworks![]() Material composition*High Calcium Hydrated Lime (>90%), Skimmed Milk Derivative (<1%), Borax (<2%), Alum (Aluminum Sulfate) (>5%), Bluing Agent(>0.005%) *as reported by the manufacturer CERTIFICATIONS & DISCLOSURES
Health Product Declaration (HPD)
Declare Label
Environmental Product Declaration (EPD)
Safety Data Sheet (SDS)
Other
Last UpdatedMay 22, 2020 |
Pourables and Aggregates | Binder | Limeworks | Ecologic Trademark HempCrete Binder Platinum |
Ecologic Trademark HempCrete Binder PlatinumEcologic™ HempCrete Binder Platinum is a lime binder formula made in America. It is used to be mixed with hemp hurd for non-structural insulation, widely known as Hempcrete. Limeworks are serious experts through their profound experience in masonry, historic restoration and working with Lime - Naturally Hydrated Lime (NHL). Production with NHL requires less energy, hence the release of CO2 is reduced considerably and NHL reabsorbs most of the CO2 during the curing process. CategoryPourables and Aggregates, BinderManufacturerLimeworks![]() Material composition*High Calcium Hydrated Lime (>90%), Proprietary Additives (<10%) *as reported by the manufacturer CERTIFICATIONS & DISCLOSURES
Health Product Declaration (HPD)
Declare Label
Environmental Product Declaration (EPD)
Safety Data Sheet (SDS)
Other
Last UpdatedMay 26, 2020 |
Pourables and Aggregates | Hemp Hurd | Americhanvre | Kanabat Hemp Hurd |
Kanabat Hemp HurdHemp hurd is the tough woody interior of the hemp plant. It is harvested by decorticating - separating - the inner hurd material from the softer, fibrous exterior of the stalk. The component silica (sand) in the plant prevents it from burning or rotting and with the immense strength of the hurd it makes Hemp Hurd a versatile building material - it is used in, e.g., insulation and wall systems. Kanabat's hemp hurd is grown in France and distributed in the US via Americhanvre. According to the manufacturer, Kanabat is certified building grade by the Construire en Chanvre. CategoryPourables and Aggregates, Hemp HurdManufacturerAmerichanvre![]() Material composition*100% pure crushed hemp hurd *as reported by the manufacturer CERTIFICATIONS & DISCLOSURES
Health Product Declaration (HPD)
Declare Label
Environmental Product Declaration (EPD)
Safety Data Sheet (SDS)
Other
Last UpdatedJanuary 27, 2021 |
Masonry | Hempcrete | Hempire | "Fifth Element" Binder |
"Fifth Element" BinderHempire's Fifth Element hempcrete binder avoids cement. Per Manufacturer, this binder allows the creation of hempcrete with a dry density of around 260 kg/m3 (16.2 lb/ ft3) with improved thermal properties. The binder is mixed with hemp hurd and water and can be used in in-situ casting, spraying, fabrication of prefab panels, bricks, or blocks. The Manufacturer is registered in the US since 2018 and starting in 2021 distributes from within the country. CategoryMasonry, HempcreteManufacturerHempire![]() Material composition*85% Hydrated Lime (CaO) 15% Natural Minerals *as reported by the manufacturer CERTIFICATIONS & DISCLOSURES
Health Product Declaration (HPD)
Declare Label
Environmental Product Declaration (EPD)
Safety Data Sheet (SDS)
Other
Additional DocumentsLast UpdatedFebruary 22, 2021 |
Mineral Paint | Lime | Earthaus Plaster | Lime Plaster |
Lime PlasterLimestrong's Artisan lime plasters are a healthier alternative to traditional wall finishes like paint. This plaster is made of lime, pumice, and a plant-based binder, all sourced from within the US. It is available in 3 finishes of varying levels of shine - Marble, Stone, and Sand. Limestrong uses natural pigments only and has created a palette of 98 colors using a combination of 8 naturally occurring minerals. These plasters are petrochemical and fragrance-free. CategoryMineral Paint, LimeManufacturerEarthaus Plaster![]() Material composition*Calcium Hydroxide 50-75%, Amorphous Aluminum Silicate (Pumice) 25-50%, Crystalline silica, respirable powder 0.0001-1% *as reported by the manufacturer COLORS98 colors CERTIFICATIONS & DISCLOSURES
Health Product Declaration (HPD)
Declare Label
Environmental Product Declaration (EPD)
Safety Data Sheet (SDS)
Other
Last UpdatedNovember 04, 2021 |
BENEFITS OF USING HEMPLIME PRODUCTS:
Interior Health: HempLime products are naturally pest, mold, and fire-resistant.
Interior Quality: HempLime products have excellent acoustic properties, and naturally regulate humidity and heat.
Energy Efficiency: The insulative properties of HempLime make it an energy-efficient building material and requires very little energy to produce. The amount of CO2 sequestered during hemp's growth exceeds the amount emitted during production. Similarly, the CO2 emitted while processing limestone to make lime is re-absorbed as lime cures.
Zero Waste: Hemp and Lime are naturally biodegradable and 100% recyclable and reusable.
Spec Guidance
Clean Hemp Hurd. Keeping hemp hurd free of dirt and fibers is paramount to having a good end result.
Plan on collecting the overspray from spray-applied HempLime. Added back into the mix, it allows for minimizing waste.
Apply lath over the entire surface of HempLime before adding the plaster if wood structural members are exposed.
Prefer sand over hemp in the plaster mix as hemp holds unto water.
Clay aggregates added to lime plaster are fast acting but can rapidly shrink and cause problems. Seek guidance on the right composition for your project.
HempLime Binder. Use a lime binder that is specifically designed for hemplime building.
Aggregate in the mix. The type and coarseness of aggregate impact the function of Lime products. Seek guidance on the right composition for your project.
Hempcrete without cement. HempLime mix should be free from cement additives. An ingredient disclosure will help you rest assured.
As this industry grows, we will be able to find more US suppliers for Hemp and Lime products. This will contribute to lowering the carbon footprint.
Updated September 6, 2022
Related Videos
Winona Laduke speaks of Hemp as a leader for a Post-Petroleum Economy
Alison Mears and Jonsara Ruth at the Hemp Building Summit - October 24, 2019
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