Posts in Building materials
Austin, TX Hempcrete Home Under Construction

From afar, there’s little to suggest this worksite is not your typical build, but actually a first-of-its-kind project in Austin ... until you come closer and see the 400-pound bags of hemp hurd, sacks of lime powder, and a specialized hempcrete mixer.

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Hemp-Lime Appendix Published in 2024 US Model Residential Codes

After years of efforts from USHBA volunteers and consultants, the governing body for national building codes in the United States released a residential building code that included hemp-lime (hempcrete) for the first time.

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DOE Awards $1.5M to Rensselaer Polytechnic for Hemp Retrofit Insulation

Researchers at Troy, NY-based Rensselaer Polytechnic Institute (RPI) received a $1.5 million 3-year grant from the US Department of Energy to develop a hemp-based low-cost insulation panel that can cut heating and cooling costs in home retrofits.

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Hemp Casita’s Hemp-Building Journey Links KS, NJ

A small student-built hemp demonstration structure nicknamed the “Hemp Casita” has criss-crossed the state of Kansas educating about the potential of building materials made of industrial hemp. 

Now, some of the collaborators are working to bring that knowledge to New Jersey with an educational seminar in Manahawkin, NJ. May 10-12 that will cover industrial hemp from growing the plant to building with it. 

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Hemp Building Regains Momentum in Carolinas

Two long-experienced natural building experts are bringing the Carolinas—North and South—together to revive the region’s hempcrete building scene. April Magill, of Root Down Designs, an architect from Charleston, SC has partnered with North Carolina’s Tim Callahan, a legendary hemp-building pioneer who designed and constructed 10 hemp structures around Asheville, NC between 2009-2016.


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Alexandros Tsamis:  Industry has yet to fully realize the potential of natural materials

We are developing next-generation construction materials derived from renewable resources. One such very prominent resource is hemp. Hemp offers a great opportunity to develop new local economies around it that span the agriculture, processing, manufacturing, and construction sectors

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Lower Sioux to Open Hempcrete Building Facility

When construction is complete next April, the Lower Sioux — also known as part of the Mdewakanton Band of Dakota — will have a 20,000-square-foot manufacturing campus that will allow them to pioneer a green experiment, the first of its kind in the United States.

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Trade Association Announces Building Code and Standard Developments

The US Hemp Building Association, trade association for the hemp building industry, announced upcoming developments for 2024, including hemp-lime (“hempcrete”) listed in US building codes, removing barriers for commercial architects and designers and helping hemp processors attain a “building grade” hemp spec.

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Hempcrete is a Winner Against Historic Floods

Once again hemp-lime is proving to be a resilient material, this time in a flood zone. Homeowner Gayle Killen says the remediation she has done to her historic home in Ellicott City, Maryland, has saved the house from flood damage where others have not been so lucky.

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Hemp Takes Center Stage at Natural Building Conference

Hemp building materials took a prominent place at the Rocky Mountain Natural Building Conference Oct. 20-22. Hemp took the podium along with cob, straw bale, passive house, natural plaster and other natural building technologies, at the Natural Building Alliance's 20th anniversary conference.

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Amsterdam Hemp Building Symposium Gathers Worldwide Experts

In October, I joined a swarm of fanatics, innovators and curious observers, as they descended on Kanteen 25 in the northern outskirts of Amsterdam, Netherlands. One thing was on everyones’ mind at the 11th International Hemp Building symposium -- INDUSTRIAL HEMP and most importantly, how is it altering the future of construction?

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