| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an external wall panel which ensures ventilation characteristics between a foundation wall and an external wall panel and has excellent strength. <P>SOLUTION: An external wall panel 1 has an uneven surface on its rear face S where a plurality of protrusive ridge portions 6 projecting toward a foundation wall side is formed so as to cross one another in a lattice manner, and a plurality of protruding portions 7 having substantially the same height is arranged on a convex portion Y of the uneven surface. <P>COPYRIGHT: (C)2012,JPO&INPIT |
