抄録
The purpose of this survey is to grasp the present state of the building systems of rationalized conventional wooden houses and to clarify problems within them. We classified those building systems and made inquiries about effectiveness and adoption rate of those building systems. As a result. We found out that effective building systems were not always accepted for their costs and so on and that rationalization at roof and roof truss didn't develop on building elements. And in specially small enterprises, we relate development of rationalization in systematic aspect to that in the whole house.
