Light Gauge Steel Modular Building

Light Gauge Steel Modular Building represents a paradigm shift in contemporary construction, blending the resilient cold-formed steel frame with advanced offsite manufacturing protocols. This system draws directly from the precision of a Light Steel Frame Modular House and the rapid deployment advantages of a Light Steel Modular Prefab Home. Every module is engineered under controlled factory conditions, utilizing CNC-driven roll forming and robotic welding to achieve tolerances within 1 mm. The resulting envelope exhibits minimal thermal bridging thanks to continuous insulation layers, while the galvanized steel substrate delivers inherent resistance to corrosion, mold, and pest intrusion. Connection details rely on bolt-and-screw assemblies, enabling both swift on-site marriage of modules and future disassembly for relocation or adaptive reuse. Designed to comply with ICC-ES ESR-2316 and ASHRAE 90.1 standards, the platform supports infinite architectural expression—from minimalist single-family layouts to complex multi-story urban infill. Its dry construction process eliminates wet trades, slashing build timelines by up to 50 percent and reducing foundation loads, making it an optimal solution for remote, seismic, or brownfield sites. Integral BIM coordination ensures mechanical, electrical, and plumbing services are pre-routed, slashing trade overlap and rework. This approach consistently delivers airtight, high-performance enclosures that contribute to LEED and BREEAM credits through material optimization and construction waste reduction.

The Light Gauge Steel Modular Building is defined by a comprehensive set of parameters that inform structural reliability, energy efficiency, and occupant wellness. Below are the core specifications and performance metrics, structured for quick reference by specifiers and project engineers.

• Primary frame material: ASTM A653 SS Grade 50 steel with G90 galvanization, yielding 345 MPa and tensile 450 MPa
• Stud profiles: 89 mm to 152 mm C-section members with pre-punched service slots at 305 mm centers, maximizing erection speed
• Wall assembly typical stack: exterior cladding, 60 mm mineral wool continuous insulation, 0.42 mm vapor-permeable WRB, 152 mm steel stud cavity filled with R-14 batt, 12.7 mm gypsum board
• Floor system: 200 mm deep cold-formed steel joists at 400 mm centers, topped with 18 mm OSB structural panel and acoustic underlayment, achieving STC 55
• Roof construction: pre-engineered trusses with 1:12 to 6:12 slope options, 60 mil TPO membrane fully adhered over polyiso insulation board
• Fastener protocol: bi-metallic encapsulated screws with EPDM washers, tested to ASTM B117 salt spray for 1,000 hours
• Fire resistance design: double gypsum layers on party walls for 2-hour rating, steel frame inherently non-combustible per ASTM E136
• Environmental credentials: recycled content exceeds 25%, end-of-life recyclability 98%, low-VOC finishes throughout