15DSA

보랄방화(방화방수)석고보드(두께15mm이상, 1ply)
+ 보랄방화석고보드(두께15mm이상, 1ply)
+ C-Stud(두께0.8mm, 50mm), Glasswool(24K, 50mm)
+ 공기층 5mm + C-Stud(두께0.8mm, 50mm)
+ 보랄방화석고보드(두께15mm이상, 1ply)
+ 보랄방화(방화방수)석고보드(두께15mm이상, 1ply)