HOLLOW CORE
REINFORCED CONCRETE CEILING
TRAPEZOIDAL SHEET
SANDWICH PANELS & TRAPEZOIDAL SHEETS
STANDING SEAM ROOFS & ROUND "BULB" SEAM
MASSIV WOOD CEILING
PLYWOOD/WOOD PANELS, MULTILAYER PLATE
FIRSTAREA
LOAD-BEARING EVERGREEN
LOAD-BEARING STONEKIT