1. Hemp Concrete Substitute

By compacting hemp and lime, it is possible to create a building block comparable to concrete. Unlike concrete, however, hemp absorbs carbon dioxide rather than emits it. This means that during the production process, 1m3 of hemp concrete wall will suck up 165kg of CO2. It is just as durable and robust as regular concrete, but will require cannabis legalisation before manufacture can begin.

In countries where the plant is already legal to produce, then the switch to hemp alternative building material should begin immediately. Hemp plastic is an attractive sustainable building material which holds great potential worldwide.

2. Bamboo and Straw

Wood has long been a popular home building material, but not all plants are equally green. Bamboo has the quickest regrowth time of any plant, meaning that it can be replaced as quickly as it is cut down. It is strong and durable. Meanwhile, straw, when packed tightly, is a perfect eco-friendly insulation material. Together, this makes the most environmentally conscious wooden cabin.

In the debate of manufactured vs modular cabins, the latter tends to be preferred due to its rigidity and durability, while the former is more affordable. By constructing modular bamboo cabins, however, you are able to produce a long-lasting, energy efficient home at a much cheaper cost.

3. Reused Plastic Waste

The world purchases a million plastic bottles a minute or 480 billion a year. We need to seriously start thinking about how we can reduce our consumption of single use plastics, but also what to do with the waste in the meantime.

One thing that the bottles can be used for is the construction of houses. When filled with sand and stacked together, they form a durable and insulating wall. In some countries, this is being used as a way to bring affordable housing to those living in poverty. It is certainly a creative way to build homes without using more of the Earth’s precious resources.

Final Thoughts

There are so many alternatives to concrete out there. Governments and construction companies need to come together to move towards sustainable building practices. This will help to ensure that everyone has a safe place to call home, while recycling resources and cleaning the carbon dioxide out of the atmosphere.

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