Rammed earth walls are made by compressing soil, sometimes with a small amount of cement, creating strong, durable, and energy-efficient structures with a unique natural look.
Suitable Climates: Best for dry/arid and temperate climates; adaptable with precautions.
Dry/Arid: Excellent thermal mass regulates temperature.
Hot/Temperate: Works well with passive solar and ventilation.
Humid/Wet: Needs moisture protection and rain shielding.
Cold: Requires added insulation.
Key Points:
High thermal mass improves energy efficiency but can retain heat in humid areas. Porous walls need moisture barriers in wet climates. Compliance with local codes varies and rammed earth is not widely accepted globally.
Benefits: Rammed earth walls are strong, durable, fireproof, pest-resistant, and require low maintenance. They are eco-friendly with a low carbon footprint and need minimal steel reinforcement. Additionally, they help reduce mold and improve indoor air quality.
Drawbacks: The construction process is labor-intensive and slow. Curved walls and openings are costly to build, and the method has limited acceptance in building regulations worldwide.
Applications: Ideal for energy-efficient walls in sustainable residential and commercial buildings.