Hemp.com Inc.- Hemps Home

Hemp House-Asheville, NC revisited-Video explaining hempcrete’s use

THempcrete - Cuttinghis video from 2009 is an interesting reminder of the simplicity and yet the brilliance of the hempcrete technology.  It is also great for learning about the construction techniques that were used when building the hemp house.  Remember the video is about building a house out of hemp. The sustainability will come when people like Obama legalize hemp for industrial use and we can grow it here in the USA.
I digress.
Enjoy the video and learn more about the properties hemp-technologies’s  hempcrete below it. We have posted all the good stuff there!!!

Hemp Video description: Constructing the first permitted home in America built primarily of hemp materials, Hemp Technologies’ crew forms 12″ walls in a monolithic pour.  No Blocks were used on this house.

Why We Like Hempcrete

The goal of environmentally conscious building design is to create buildings that create a healthy indoor environment while supporting a healthy outdoor environment. The best way to accomplish this goal is through combining cutting edge building science with what are commonly called “natural building” practices. High performance building science allows us to create buildings that use almostno energy to run, therefore reducing the size and price of the renewable energysystem required to produce on site all the energy required to run the building.The natural building perspective helps us utilize natural, local, and site-harvested materials that have a very low embodied energy, therefore lowering the carbon and pollution footprint of the building during construction. Together, these twostrategies allow us to reach the threshold of carbon neutrality, a building thatdoes not contribute to our current climate change problems.On the natural building side, we feel that earthen mixes don’t have adequate thermal performance while the vulnerability of straw bales to water damage concerns us. On the high-performance commercial side, we are skeptical of the long-term durability of SIPS walls and feel that double stick frame systems aretoo complex and prone to air infiltration weaknesses. These and other problems have been solved by what to us is a new material: Hempcrete. Hempcrete is a mixture of industrial hemp shiv and lime-based binder. When used in walls, it is either spray applied or placed in forms in or around a skeletal structure, such as a timber or steel frame. The resulting wall system has many of the benefits of common natural building applications, such as straw bale or clay slipstraw, with the quality control of mass-production and the durability provided by coating cellulose with lime. Some of the benefits of Hempcrete for our application are:

1. High thermal resistance.
The normal Hempcrete mix has an R-value of 2.4 per inch. This is superior to straw bale construction and any earth and straw mix. Due to reduced thermal bridging, it is also most likely superior on a per inch basis to conventional stick frame systems with cellulose or fiberglass insulation.

2. Adjustable thickness.
Though Hempcrete is presently not considered a structural material it is strong enough to constitute the interior and exterior substrate for finishing materials. This means that the thickness of a Hempcrete wall is adjustable independent of the thickness of structural wall members. Therefore, a Hempcrete wall can be adjusted to meet the thermal requirements of any given climate.

3. Low air infiltration.
Hempcrete is a relatively dense material that either surrounds or sits in front of or behind the structural system of a wall. This means that a Hempcrete wall will be inherently quite air-tight.Low air infiltration is a pivotal component of our performance strategy.

4. Hygroscopic characteristics.
In building, a “hygroscopic material” is something that can absorb water. Lime and Cellulose, in this case Hemp Shiv, work together to create a wall that can take on and give off water in response to changing humidity levels in the air. This is called a “breathable wall” system and is a great boon to indoor air quality and wall durability.Plastered straw bale walls are “breathable” in this way. The lime inHempcrete will protect the hemp from molding, therefore creating a breathable wall that can be part of a healthy indoor air strategy in a humid climate.

5. Substrate for lime and earth plasters.

Hempcrete is a great substrate for earth and lime plasters. No manufactured laths or synthetic vapor barriers are required. This greatly simplifies construction, reducing labor and material costs for plastering.

6. Accommodates different structural systems.
Our preference is to build structures that will last many hundreds of years. Our approach for doing this is to create a post and beam structure using masonry columns and wooden beams. This system requires an insulation material that wraps the exterior of the structural members and therefore must be able to stand up on its own. Hempcrete can do this. At the same time, this structural system is more expensive, so for smaller budgets we need to be able to use a simpler structure. Hempcrete also works well with the simplest structural system around: the wooden stick-frame.

7. Durable and Recyclable.
Hempcrete will create a very durable wall.However, when the building life cycle has finally come to an end, Hempcrete can be re-used, either as a building material or perhaps a soil amendment. Regardless, there will be no reason to take it to a land fill;something that can’t be said for most modern materials.

8. Beauty, of course!
People respond very positively to thick walls and rough plastered finishes. It seems to us that this combination is an aesthetic archetype. Hempcrete delivers this aesthetic not as an add-on or afterthought, but as an inherent part of its form.

Don’t forget to check out the awesome crew and additional information over at Hemp-technologies.com.  And YES you can buy hempcrete!

Help us spread the word about Hemp!

Facebook
Twitter
Pinterest
LinkedIn
Reddit
Email

Leave a Comment

Your email address will not be published. Required fields are marked *

Related stories

hemp fiber
Editorial
Hemp Author

Hemp Clothing: A Sustainable Fashion Revolution

Hemp Fashion In a world grappling with the environmental consequences of fast fashion, sustainable alternatives are emerging to challenge the status quo. Hemp clothing stands at the forefront of this revolution, offering a greener and more ethical choice for conscious consumers. This story explores the myriad benefits of hemp clothing, from its eco-friendly cultivation to

Read More »
Hemp Sustainability
Editorial
Hemp Author

A Sustainable Revolution: Hemp Products and Alternatives in 2023

In the pursuit of a more sustainable future, innovative solutions are needed to reduce our reliance on traditional resources. Enter hemp—a versatile and eco-friendly crop that has captured the imagination of industries worldwide. In this story, we embark on a journey into the year 2023, exploring the diverse and exciting realm of sustainable hemp products

Read More »
green hemp farming
Editorial
Hemp Author

Cultivating Green Gold: Hemp Farming Regulations and Licenses in the USA

In the wake of hemp’s resurgence as a versatile and sustainable crop, the United States finds itself at the forefront of an agricultural revolution. The legalization of hemp cultivation has paved the way for a booming industry, providing economic opportunities for farmers and entrepreneurs alike. However, navigating the intricate web of hemp farming regulations and

Read More »
growing hemp at hemp.com
CBD News
Hemp Author

CBD oil Market Growth Continues in 2023

The Cannabidiol Oil (CBD Oil) market is expected to witness a significant surge in its market value and Compound Annual Growth Rate (CAGR) in the forecast period 2022 to 2028. The market is poised to experience a remarkable growth trajectory, driven by the increasing demand for CBD oil in various industries such as pharmaceuticals, cosmetics,

Read More »
Hempcrete Block
Editorial
Hemp Author

PROOF That This Amazing Hemp Product Can Help (Literally) Build the Future

Hempcrete’s Unique Promise and Properties.  Did you know that construction accounts for nearly 40 percent of global energy consumption? Forty percent! That’s massive. It also means construction offers an equally massive opportunity to make a difference in terms of sustainability.  A fascinating application of industrial hemp is its versatility as a building material. Known for

Read More »
Video-hemp and Hempcrete as a building material
Editorial
Hemp Author

Video-Hempcrete and hemp building Materials

How Hempcrete is made Hempcrete is made using the wood-like core of the industrial hemp, called the hurd, mixed with a lime-based binding material. This core is high in silica content making it able to bind very well with lime, a rare quality among plant-based material. This results in a lightweight cementitious material weighing 1/8th

Read More »
Scroll to Top