In Miyagawa Village, we can see many folk houses built by a construction system “TATEAGE”. We investigated “TATEAGE” how to construct. When rebuilding the folk houses from a thatched roofing to a single roofing, some existing wall posts were taken away and long new wall posts were set up. In most cases a space between beams grew larger. “TATEAGE” was constructed about 1900 - 1970.