Thermal mass refers to a material’s ability to absorb, store, and release heat, helping regulate indoor temperatures. Natural building materials like hempcrete and clay offer excellent thermal mass benefits. They absorb heat during the day and release it slowly at night, reducing the need for artificial heating and cooling, which improves energy efficiency.

These materials also help maintain stable indoor temperatures, making them ideal for passive design in both hot and cold climates. Additionally, hempcrete sequesters carbon, and both hempcrete and clay regulate moisture, further enhancing comfort. With low environmental impact and sustainability, hempcrete and clay are excellent choices for energy-efficient, eco-friendly buildings.