Since ancient era, yoshi (reed) has been used as a sunlight screen, partition, and sometimes as a wattle like substrate of mud wall. However, in the modern era, reed screen was also used as a substrate of plaster wall. That kind of wall construction is less known because this type of wall has been believed to be just a cheap and inferior one, and it is not used late years. In this research, we collected primary technical books about building construction and plaster works, and analyzed how the reed screen wall construction has changed.
