Steel Construction Trapezoidal Sheet Metal, Panel and Applied Cladding Systems

Developing technology and the changing needs of industrial construction are driving the widespread adoption of faster, safer, and more durable solutions in the construction industry. Among these solutions, steel construction trapezoidal sheet, panel, and applied cladding systems have an important place in modern construction projects thanks to their advantages such as high load-bearing capacity, low structural weight, fast installation, and energy efficiency.

When implemented with the right design, appropriate material selection, and professional workmanship, these systems not only enhance structural safety but also provide effective solutions for thermal and acoustic insulation, fire resistance, and long service life.  Today, they are widely used not only in new construction projects but also in roof and facade renovation works for existing buildings.

Pancihan Metal explains all the details about these systems, from their structural characteristics and areas of application to system components, installation processes, and cost criteria.

What Are Steel Construction Trapezoidal Sheet, Panel, and Applied Cladding Systems?

Steel construction trapezoidal sheet, panel, and applied cladding systems are modern construction solutions that integrate the structural steel frame with roof, facade, and other building envelope components. Particularly preferred in industrial facilities, warehouses, hangars, production areas, commercial buildings, and large-span projects, these systems combine the structural framework and exterior cladding under a unified engineering approach to create durable, safe, and long-lasting structures.

These solutions are not limited to roof cladding alone. In addition to the main structural steel systems, they cover many structural components such as roof and facade cladding, intermediate floor and mezzanine applications, and industrial building envelopes. Project-specific solutions are developed by determining different structural systems, cladding materials, and application details according to the intended use of the project, load-bearing capacity, climatic conditions, and technical requirements.

What Are the System Components and Structural Characteristics?

The performance of steel construction cladding systems is determined by the harmonious interaction of the structural frame, cladding elements, connection details, and auxiliary building components. Each component of the system plays a decisive role in many critical factors, from structural safety and durability to energy efficiency and long-term performance.

• Steel Structural System (Columns, Beams, and Trusses): This is the main structural system that carries all permanent and live loads of the building. Columns, beams, roof trusses, and rigid frames are manufactured from high-strength structural steel profiles. Different profile sections are selected according to the span, intended use, and structural calculations of the project.
• Purlin and Girt Systems: These are secondary structural elements positioned between the main structural system and the cladding elements.  Purlin profiles are generally manufactured from galvanized steel sections in C, Z, or Sigma forms. They provide a solid supporting infrastructure for trapezoidal sheet and sandwich panel cladding, helping transfer loads safely to the main structural system while increasing the rigidity of the cladding surfaces.
• Trapezoidal Sheet: Manufactured by forming galvanized or aluminum-zinc coated thin steel sheets into special profiles, trapezoidal sheets provide economical, lightweight, and high-load-bearing solutions for roof and facade cladding. The profile height and sheet thickness are determined according to the intended use.
• Sandwich Panel: This is a composite building element manufactured by placing insulation materials such as PUR, PIR, or mineral wool between two metal sheets. It is widely used for both roof and facade cladding in buildings requiring thermal, acoustic, and fire insulation. Different thicknesses and densities can be produced according to project requirements.
• Connection and Fastening Elements: Self-drilling screws, EPDM gasketed washers, connection plates, joint profiles, and special fastening elements ensure the safe installation of the system. Proper connection details directly affect the structure's resistance to wind loads and watertightness.
• Sealing and Water Drainage Elements: Butyl tapes, sealants, ridge caps, valley gutters, gutters, drip profiles, and rainwater drainage systems ensure controlled removal of rainwater, contributing to the long service life of the cladding system.  

What Are the Cladding System Types and Engineering Details?

The cladding system to be used in steel construction structures is determined by considering the intended use of the building, insulation requirements, environmental conditions, and project budget.

Trapezoidal Sheet Cladding Systems

They are applied directly onto steel purlins in projects seeking an economical and lightweight solution:

• Material–Profile:  Depending on the project details, these elements are formed in 27/200, 38/151, or 50/207 profiles and manufactured from high-strength aluminum or galvanized steel sheet.
• Insulation Flexibility: While they can be used without insulation in single-layer applications, they can be insulated by placing mineral wool between two trapezoidal sheets using the "in-situ application" technique.
• Areas of Application: Warehouses, hangars, canopies, and agricultural structures with low insulation requirements.

Sandwich Panel Systems

These are ready-to-install modular systems manufactured by injecting high-density insulation material between two metal sheets:

• Roof and Facade Solutions: Roof systems generally use 3-rib and 5-rib panels that provide high load-bearing performance. In facade applications, exposed or concealed-fix panel solutions stand out by offering an aesthetic appearance and secure installation.
• Insulation Core: The choice of filling material is determined according to the performance requirements of the building. PUR/PIR-filled panels are preferred for high thermal insulation, while mineral wool-filled panels with Class A fire resistance are used in buildings where fire safety is a priority.
• Areas of Application: Factories, cold storage facilities, logistics centers, and modern commercial buildings.

Where and How Are These Systems Preferred?

Thanks to their flexible design capabilities and high strength, steel cladding solutions address both structural and functional requirements across a wide range of industries:

• Industrial Facilities and Production Areas: Factories, manufacturing facilities, and heavy industrial structures use these systems as their main building envelope due to their ability to span large areas with minimal columns.
• Logistics and Storage Centers: Cold storage facilities, warehouses, and hangars prefer these systems because they provide climate control and high insulation performance.
• Commercial and Social Buildings: Shopping centers, sports complexes, exhibition halls, and construction site buildings turn to these solutions due to their fast installation and aesthetic appearance.

Main Systematic On-Site Applications:

• Roof Cladding: It is applied as a protective upper covering that provides high watertightness against water accumulation, heavy snow, and wind loads.
• Facade Cladding: It protects the vertical surfaces of the building against all adverse external conditions, including corrosion, impact, and UV radiation.
• Insulation Applications: Integrated into roof and facade layers according to project requirements, insulation solutions increase energy efficiency while providing effective protection against heat, sound, and fire.

How Does the Installation and Application Process Work?

The long-term durability, safety, and high performance of steel construction and cladding systems depend not only on accurate engineering calculations but also on the quality of the installation.

• Project Design and Structural Calculations: During the initial stage of the project, the intended use of the building, span lengths, ground conditions, seismic zone, and wind and snow loads are evaluated, and the necessary structural analyses and engineering calculations are performed.
• Installation of the Steel Structural System:  The manufactured steel structural components are safely transported to the installation area. The structural elements are lifted using cranes and assembled according to the connection details specified in the project.
• Purlin and Girt Installation: Once the main structural system has been completed, purlin and girt profiles that will support the roof and facade cladding are installed.
• Occupational Health and Safety (OHS) Measures: In accordance with working-at-height and heavy lifting standards, site safety nets, lifelines, and personal protective equipment are installed completely.
• Installation of Cladding Elements: Trapezoidal sheets or sandwich panels are positioned according to the installation plan. Connection screws are tightened to the appropriate torque values, while EPDM gaskets and butyl tapes are used at joints to ensure watertightness.
• Application of Finishing Details: Ridge caps, valley gutter coverings, corner profiles, drip edges, and water drainage elements are installed to complete the system.
• Final Inspections: After installation is completed, connections, alignment, watertightness details, and surface conditions are inspected.

What Are the Structural Design and Engineering Criteria?

Safety and durability in steel construction systems are achieved not only through the use of high-quality materials but also through accurate engineering calculations. The design process takes into account seismic, wind, snow, live and dead loads, soil characteristics, span lengths, steel section selections, and connection details. Processes carried out in accordance with relevant national and international standards ensure that the system can be used safely for many years.

What Advantages Do These Systems Provide to Buildings?

• Structural Durability: Large spans can be safely covered using high-strength steel profiles. The low structural weight helps reduce seismic loads.
• Fast Construction Process: Manufacturing the components in a factory and assembling them on site significantly shortens the construction period.
• Energy Efficiency: Insulated sandwich panels reduce heat losses, helping lower operating costs.
• Solar PV Compatibility and Sustainability: Roof cladding systems can be specifically designed according to the additional loads created by solar PV panels and the requirements of the structural system. The recyclable nature of the steel components used also supports efficient use of natural resources.
• Architectural Flexibility: Large column-free spans provide flexibility in interior spaces, while additions can be easily made to the structure.
• Low Maintenance Requirements: Thanks to galvanized protection, high-quality coating systems, and proper installation details, steel structural elements maintain their performance for a long time and periodic maintenance requirements can be kept to a minimum.

How Are the Prices of Steel Construction and Cladding Systems Determined?

Every steel construction project differs in terms of technical requirements and design criteria.  Therefore, it is not possible to establish a fixed price per square meter (m²). Project costs vary according to the intended use, span lengths, structural system characteristics, and selected cladding solutions. The main factors affecting pricing include the total enclosed area, structural steel tonnage, profile sections to be used, type and thickness of cladding material, insulation type, and the quality of galvanizing and paint systems. The location of the construction site, installation height, crane/equipment requirements, and site conditions also directly affect application costs.

Quality-Compliant Steel Construction and Cladding System Applications

Pancihan Metal Sanayi brings robust strength and aesthetics to industrial structures with its production of Steel Construction Trapezoidal Sheet, Panel, and Applied Cladding Systems, designed to meet the demanding standards of heavy industry and modern architecture. With years of experience, a wide range of materials, and strong engineering expertise, the company goes beyond manufacturing its solutions and also undertakes project installation on a turnkey basis while strictly adhering to TSE and international quality standards. Under the precise supervision of its expert architects and structural engineers, Pancihan Metal Sanayi carries out flawless installation processes with its experienced and professional team, constructing long-lasting, safe, and high-value structures capable of withstanding time and challenging environmental conditions.