| 摘要 |
<p>PURPOSE:To secure such a roofing that intercepts any rainwater, aside from air permeability and light transmittibility. CONSTITUTION:This roofing is made up of applying a water-repellent coating 5 on the surface of a metal plate 2 formed with a lot of fine holes 1. A bore of each hole 1 is desirable to be a range of 100 to 900mum. Therefore, the extent of water-repellency in this roofing is heightened by the water-repellent coating 5, and rainwater 7 flows down to a lower side as flow-down water 8 without passing through these fine holes 1. Since light and air pass through these holes 1, brightness, humidity, temperature or the like in an inner space are all favorably maintained.</p> |
