抄録
All weathers temporary roof system, using three-step telescopic supports roof, was developed to cover workplaces with a roof, and to shelter operations from rain and snow. By carrying out an on site application trial, it was found that because of the protection provided by the sysytem, work could continue even during rain, leading to a considerable increase in productivity. It was also found that the system gave an even greater protection from direct sunlight than was initially anticipated, resulting in an overall improvement of the working environment.
