5 Of The World's Most Eco-Friendly Building Materials
1 Bamboo
Sustainability experts nearly universally agree bamboo is one of the best eco-friendly building materials on the planet.
Its rate of self-generation is incredibly high, with some species growing up to three feet in 24 hours.
Bamboo has a high strength-to-weight ratio and exceptional durability — even greater compressive strength than brick or concrete — so it can take a beating without being replaced very often, which is not necessarily the case with other fast-growing, sustainable items such as hemp.
2 Cork
Like bamboo, cork is a fast-growing resource.
It earns bonus points for its ability to be harvested from a living tree that will continue to grow and reproduce cork, which is a tree bark.
Cork is flexible and resilient, reverting to its original shape after sustaining pressure.
3 Reclaimed or recycled wood and metal
Aluminum and steel are high embodied energy materials due to the energy required to produce them, such as mining the ore, heating and shaping products, and transporting a relatively heavy material.
Recycled metal is a long-lasting material that does not need frequent replacement.
Wood does have less strength though, so each piece's integrity should be assessed and chosen for an appropriate project.
4 Precast concrete slabs
This concrete slab is formed at a manufacturer's site and shipped in whole sections to construction sites.
The outer layers often envelop a lightweight filler, like foam insulation.
Other versions are made entirely of concrete but have large, hollow air spaces, like concrete blocks.
Precast concrete slabs commonly are used for walls and building façades because they hold up well to all kinds of weather, but certain types can be used for floors and flat roofs, especially roof decks.
5 Sheep’s wool insulation
Unlike the commonly used fiberglass insulation or polyurethane spray foam, sheep’s wool is all natural.
The material doesn't degrade nearly as quickly as other natural insulation materials, like straw.
And compared with some natural insulators like cotton, sheep’s wool is more prevalent, regenerates faster and can be harvested more easily.
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5 Of The World's Most Eco-Friendly Building Materials
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