Hemp as a raw material is on the rise again. As the cannabis plant has been able to improve its public image in recent years, thanks in part to the boom in CBD, many people have shed their fear of contact.
Today, you can be very open about this topic and acknowledge the benefits that the hemp plant has to offer in many areas of life without being skeptical. However, home construction is also an industry in which hemp has always had a place. Whether it’s insulation or the building material itself, hemp improves the climate in a building. In addition, hemp is a natural, rapidly renewable raw material, from which, for example, concrete can be made from hemp. It is not for nothing that this is considered an exceptionally environmentally friendly building material.
Cannabis has an excellent carbon footprint.
Hemp as a building material, like hemp concrete, is a carbon negative material. This means that the growth of the hemp plant removes more carbon from the atmosphere than its production and use releases. Various estimates have been made for the amount of carbon that can be subtracted. Of course, this depends on the exact type and origin of the hemp materials as well as the area of application. Calculating the CO2 balance is quite difficult, almost impossible. However, a UK building materials company estimates that CO2 emissions will be reduced from 110 to 165 kg per cubic meter.
Rapid growth also favors the development of hemp as a building material over wood.
The reason cannabis absorbs so much carbon dioxide is because it is a large, fast-growing plant. It must form a solid tree trunk in order to get enough nutrients from the soil. For this she needs coal. The strong wood pulp of the trunk is shredded and used to make wood material. In the past, they were mostly waste products from oil, seed and fiber production. The construction application ensured that the entire plant could actually be used. While wood takes an average of four years to grow to usable size, it takes only four months for hemp. This is what makes the use of hemp as a building material so sustainable.
Hemp allows you to build with less energy.
Hemp can be grown in many different soil types around the world as long as the climate is not too dry. This means that raw materials can be mined close to where they are used. This reduces the amount of energy used to transport the building material since it does not have to travel so many kilometers. Lower temperatures are also required for the production of hemp concrete, which also saves energy.
The cannabis plant regenerates the soil on which it grows.
Hemp is inherently pest resistant and inhibits weed growth. This usually eliminates the need for chemical fertilizers and insecticides altogether. Cannabis returns nutrients to the soil and prepares it for the next cultivation. Many other plants leach the soil.
Hemp brings something back to nature in every area.
One aspect that is often overlooked in construction is recycling. If the building is demolished, the chemical building materials must be disposed of somewhere. On the other hand, the hemp parts of the building are biodegradable. Every piece of hemp in concrete reduces the burden on the environment.