Cob building is a natural construction method that uses a mixture of clay, sand, and straw to create sturdy walls. This technique has been used for thousands of years and is known for its sustainability and energy efficiency. Cob structures are typically shaped by hand, allowing for unique and artistic designs. The process involves mixing the materials to form a malleable substance, which is then applied in layers to create thick walls. Cob buildings are often appreciated for their thermal mass, which helps regulate indoor temperatures. This method is gaining popularity among eco-conscious builders and homeowners seeking alternative construction options.