This manual was designed for the builders, technicians, professionals involved in rural housing development programmes in humid tropical climates where : - rainfalls are important, - clay content of the soil is very high, - existing building techniques are based on the use of adobe blocks as in-fill material (wooden structure filled with adobe for rural housing / concrete structure filled adobe or burnt bricks for public buildings). The adobe technique is not considered as a specific technology with its own characteristics, and both the production cycle and the building details are not well masterd.