Although bricks undergo industrial processes including raw materials mining and kiln firing, they do have some sustainability features, including:
Main components are natural raw materials
Bricks are mostly made from clay and shale – some of the most abundant, natural materials on earth – and then fired through a kiln at up to 1,000 degrees. Brick is such a durable material because the raw materials go through a vitrification process in the kiln, which enable the material particles to fuse together. Clay and shale are also found in most areas of the world, meaning that the materials can usually be sourced locally, thus minimising the distance travelled between raw materials and production.
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Bricks are great insulators
Brick has exceptional thermal mass properties, which is the ability of a heavy, dense material to store heat and then slowly release it.
These natural insulating factors ensure that bricks may keep homes warmer on cooler days and keep houses cooler during warmer days.
Cavity brick walls can provide greater thermal properties, by creating an insulating layer of air between two walls of bricks. Therefore, this may reduce your requirements for home heating and cooling and in turn may lead to lower energy usage and bills.
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