Construction Design Drawing with Roof Edge Detail and Railing System

This construction design drawing is a detailed AutoCAD file presenting a roof edge construction section with complete structural and finishing layer information. The drawing shows roof slab thickness, metal deck profile, waterproofing layer, thermal insulation, gravel finish, and galvanized sheet protection with clear layer sequencing. It also includes railing system details with a steel tube diameter of 60 mm, steel cable of 15 mm to 100 mm spacing, and a metal balustrade fixing arrangement. All elements are drafted with accurate dimensions, level references, and material annotations, making the drawing suitable for execution-level construction detailing.