Earthen construction refers to building techniques that utilize natural materials like clay, sand, and straw to create structures. This method has been used for thousands of years and is known for its sustainability and low environmental impact. Common forms include adobe, cob, and rammed earth, each offering unique benefits in terms of insulation and durability. These techniques are often employed in regions where these materials are readily available, making them cost-effective. Earthen buildings can be aesthetically pleasing and blend harmoniously with the environment. Additionally, they provide excellent thermal mass, helping to regulate indoor temperatures naturally.