Hemp Houses – The Secret of Building Sustainable Homes

  • December 17, 2019

Once the areas major agricultural product, hemp is making a comeback in the Altiplano part of Granada, Spain. Before late nineteen sixties industrial hemp growing formed the backbone of the wholly agricultural part of Spain. Towards the end of the Franco era, with the invention of nylon and the mechanisation of agriculture most of the population was forced off the land to find focus on the coast and major cities.

With the advent of the eco-age the curiosity about industrial hemp is being revived because it is really a major constituent of eco-bricks, an essential part of sustainable housing.

Hemp comes from the Anglo Saxon word’haemp’and is the popular name for plants of the cannabis genus. Hemp usually identifies the strains of the plant cultivated just for industrial use rather than cannabis that is related to pot and similar drugs.

Hemp features a huge selection of uses but remains overshadowed by the cannabis connotation of illegal drugs, with which it’s often confused. However hemp can legally be grown, under licence, in lots of countries, such as the European Union countries and Canada.

Cannabis sativa L. is the variety primarily grown for industrial purposes, it is really a fast growing plant and has been cultivated for all thousand of years being used to make rope, clothing, paper, hemp oil and medicines. Growing hemp improves the situation of the floor and reduces ambient contamination. It is a robust plant that needs neither herbicides nor pesticides during its cultivation.

Hemp as a professional material features a ten thousand year history. The initial recorded use of hemp was as a material fabric, present in China as far back as 8000BC.C. Circa 4000B.C. hemp started to be used, again in China, to make ropes and as food. 2000 years later, the Chinese hemp oils and medicine were in use. By 1000B.C. its use had spread to India and Greece where the very first cases of hemp paper were found. kratom review

By the 6th century hemp was being used in Europe in some amazing ways, in France a hemp reinforced bridge was built and it’s still being used today. The hemp fibre also found uses in sailmaking, caulking materials, fishing nets and lines. In later years hemp was used to make many different foodstuffs including butter and beer. By the 15th century Renaissance painters were using hemp canvases.

Today industrial hemp is employed to create a staggering selection of products ranging from medicines, body care products, building and insulating materials, clothing, textiles, food, fuel, livestock food and bedding, plastics and paper.

In the building industry hemp bricks, because of their sustainability and excellent insulation properties, are being used to create external and internal walls of ecological homes. In this area of Spain the external walls of an eco house will include a eco-bricks, stated in Guadix with the proprietary name of Cannabric® ;.

Cannabric® derives its properties from industrial hemp fibres (cáñamo). The hemp bricks are made up of industrial hemp fibres, slaked lime and a combination of innert mineral materials. The bricks combine the functions of lots bearing wall that’s fire-resistant and does not require the addition of thermal or acoustic insulation.

The main part of the eco-brick is industrial hemp that includes a suprisingly low thermal conductivity (0.048W/m²k) producing a stone with vastly superior insulation properties against both cold and heat. The mineral part of the bricks gives them their mechanical strength. Being fully a solid brick, with a high specific heat, it’s the perfect thermal properties to guard against heat.

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