**An Opaque Solar Lumber Drying House Covered by a Composite Surface**

Kanayama Kimio1, Koga Shinya2, Baba Hiromu3 and Sugawara Tomoyoshi4

*1Kitami Institute of Technology 2Kyushu University 3Formerly, Kitami Institute of Technology 4Marusho-giken Co., Ltd. Japan* 
