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What is a 3D Wire Mesh Panel?

The 3D wire mesh panel is one of the most advanced and efficient construction materials, developed to accelerate building processes while keeping high quality. This product consists of two layers of wire mesh and a core of expanded polystyrene (EPS) foam insulation. Once installed, the structure is coated with a layer of shotcrete (cementitious mortar) to provide the final wall strength.

3D wire mesh panels are widely used in various construction projects due to their lightweight structure, excellent thermal and acoustic insulation, and fast installation. As one of the most cutting-edge systems in industrialized construction, it integrates structural engineering principles, advanced insulation feature, and unified wall and roof components. With its high seismic resistance and speed of implementation, this system offers a modern solution for mass housing, urban development, rural housing, and post-disaster reconstruction.

History of 3D Panel Technology

3D wiremesh Panel technology root go back to mid-20th century, beginning with the emergence of prefabricated building systems in the 1950s. Over the following decades, innovations in concrete and composite panels paved the way for more advanced construction methods. The concept of the 3D wire mesh panel as we know it today was introduced and patented in the 1970s by Italian engineer Pedro Passallo. His goal was to design a lightweight, durable, and affordable housing solution for developing countries.

Throughout the 1970s and 1980s, the system evolved to combine structural integrity and thermal insulation using polyurethane or polystyrene foam sandwiched between welded wire meshes and finished with shotcrete. By the 1990s, this method gained attention as a sustainable and energy-efficient alternative in construction material market . Since the 2000s, 3D Panels have seen widespread adoption across regions such as Latin America, Turkey, and Southeast Asia, due to their cost-effectiveness and rapid installation. Advances in quality and engineering during the 2010s have further improved their performance. Today, 3D Panels play a critical role in modern and sustainable construction, with growing global demand driven by urbanization and the need for efficient building systems.

Applications of 3D Wire Mesh Panels

3D wire mesh panels are used in various types of construction projects, including:

  • Residential Buildings: utilized in interior and exterior walls of villas and apartment complexes.
  • Commercial Buildings: utilized in interior and exterior partitioning in shops and office buildings.
  • Industrial Buildings: Utilized in internal and external walls of factories and warehouses.
  • Temporary Structures: Suitable for use in worker camps and exhibition buildings.
  • Other Civil Structures: Including bridge abutments, governmental infrastructure, and storage tanks.

Key Features of 3D Wire Mesh Panels

3D wire mesh panels offer the following key advantages:

  • Thermal and Acoustic Insulation: due to utilizing the integrated foam core, these panels effectively reduce heat and cold transfer and noise, improving energy efficiency and indoor comfort.
  • Lightweight: comparison to traditional building materials, these panels are lighter in weight, reducing structural dead load and potentially lowering foundation costs.
  • Fast Installation: Due to their prefabricated design and simple installation method, construction using these panels is significantly faster than other systems.
  • Durability and Resistance: 3D panels demonstrate excellent resistance to seismic activity and mechanical stresses, improving overall structural safety.
  • Customizability: These panels can be easily tailored to meet the specific architectural and structural needs of various projects

Types of 3D Panels

  • Bearing Panel (Structural)

    • This type of panel is engineered to withstand structural loads, functioning as an integral component of the building’s structural system. bearing panels are capable of supporting both vertical loads (such as roof and floor weights) and horizontal loads (like wind and seismic forces). A typical bearing panel consists of a 10 cm thick expanded polystyrene (EPS) foam core and a steel mesh with 2.7 mm diameter wires. The mesh grid, typically with 5×5 cm openings, provides sufficient strength to resist gravity and lateral loads.
    • Partition Panel (Non – Bearing)

    Designed for space division and the creation of external and  interior walls, partition panels do not carry structural loads. They are used to form internal partitions within buildings and for perimeter walls located between structural columns. The construction of this panel includes an EPS foam core ranging from 4 to 10 cm in thickness and a steel mesh with 2 to 2.6 mm diameter wires. The mesh openings are typically 5×5 cm. Key features such as lightweight design, easy for installation, and the ability to accommodate utility lines without the need for grooving make it a preferred choice for rapid construction.

    • Three-Layer Acoustic 3D Panel

    These panels consist of three foam layers, with two standard EPS layers surrounding a central core of rock wool (mineral wool), all encased between double-sided welded wire mesh. Developed by Yazdsamin as a specialized solution for high-performance acoustic insulation in walls, they are ideal for hospitals, schools, offices, and shared residential walls. The total panel thickness is 100 mm, combining expanded polystyrene (EPS) and rock wool for superior noise reduction. The steel wire mesh uses 2.0 to 2.6 mm wire with a 50×50 mm mesh grid. The triple-layer structure ensures excellent sound insulation properties.

    • Economy 3D Wire Mesh Panel

    An affordable solution for projects with budget constraints that require lightweight, fast-implementation wall systems. These panels feature an EPS foam core available in thicknesses from 40 to 100 mm, combined with 2.0 mm steel wire mesh. The mesh grid is 50×100 mm, which reduces steel consumption and lowers the overall cost, while still maintaining adequate performance for non-structural walls and cladding applications.

3D Panel implementation Method

  • The implementation of 3D wire mesh panels requires accuracy and coordination between the plans on-site. The standard steps for implementing this system are as follows:
  • Reviewing Implementation Plans: Ensuring the coordination of structural, architectural, and MEP plans before starting implementation .
  • Structural Frame Inspection: Verifying the dimensions and locations of columns and their alignment with architectural drawings.
  • Layout Marking and As-Built Survey: Transferring the plan to the site and marking implementation lines (chalk lines), then recording actual dimensions (as-built) and matching them with the plans in AutoCAD software.
  • Installing Starter Rebars: Placing rebars at floor and ceiling levels to secure the panel walls.
  • Panel Installation: Positioning and fixing the panel walls according to the project’s architectural plan.
  • Installing Supplementary Connections: Including reinforcement mesh, U-shaped mesh around openings, and L-shaped mesh at corners to increase local strength.
  • Temporary Handover for MEP Installation: Leaving pathways open for mechanical piping and installing electrical boxes and conduits inside the panel foam without the need for chipping.
  • Final Handover for Shotcrete Application: Conducting a final check of all connections, openings, and utility paths before shotcrete spraying.

•             Shotcrete implementation: Spraying cement mortar in two layers over the panel wall surface and final leveling to prepare for finishing

fitings Related to 3D Panels

fittings in 3D Panels are highly important. The main types of panel fittingd include:

  • Mesh Strip fittings: These are used to connect panels vertically. Mesh strips are produced in widths ranging from 10 to 60 cm and lengths of 100 to 120 cm, with mesh openings of 5×5 mm and 5×10 mm. The wire thickness is adjustable from 2 to 2.7 mm depending on project requirements. These strips are utilized for localized structural reinforcement, construction of thin walls, sealing, and specific execution details.
  • U-Shape fittings: These are intended for securing the edges of panels adjoining openings. U-strips come with flange widths of 5 to 20 cm and openings of 5 to 12 cm, in lengths of 100 to 120 cm. Mesh sizes of 5×5 mm and 5×10 mm are available, with wire thickness from 2 to 2.7 mm. These strips are used to reinforce connections during 3D Panel implementation, form edges, and build lightweight metal frames.
  • Angle fittings: utilized for joining panels at corners and angles. Corner strips have flange widths of 5 to 20 cm and lengths of 100 to 120 cm, with mesh openings of 5×5 mm and 5×10 mm. Wire thickness ranges from 2 to 2.7 mm. Their primary application is covering wall corners, strengthening angles, and ensuring cleaner and stronger vertical fittings implementation.

Applications of 3D Panel fittings

Fittings in 3D Panels serve multiple important purposes, including:

  • Enhancing Structural Strength: The use of standard and proper fittings at panel joints, around openings, and at corners significantly increases the wall’s resistance to compressive, bending, and lateral loads. These fittings facilitate the correct transfer of forces within the structure and optimize the overall structural performance of the wall.
  • Creating Structural Continuity and Preventing Cracks: Proper fittings between panels transform the wall into a cohesive and unified structure. This structural continuity prevents cracks caused by settlement, temperature changes, or localized stresses, thereby ensuring the long-term durability and stability of the system

Shotcrete Application on EPS 3D Wire Mesh Panels implementation

Shotcrete is a critical stage in the implementation of EPS 3D wire mesh panel walls, performed to provide final structural strength before finishing works such as plastering, painting, or facade application. The standard implementation steps are:

  • Panel Preparation: Cleaning the panel surfaces and thoroughly inspecting the panel joints and fittings.
  • Mortar Preparation: Mixing cement, sand, water (and additives if required) in precise proportions using a concrete mixer.
  • First Layer implementation : Spraying the initial mortar layer approximately 1 cm thick using shotcrete equipment.
  • Second Layer Application: After initial set, applying a second layer with a thickness of 1.5 to 2 cm to reach the final required thickness.
  • Screeding (if needed): In areas where the wall will be directly plastered or painted, the freshly applied mortar is leveled and made uniform using a screed tool to ensure a flat, even surface ready for finishing.

 

Tolerances Related to EPS 3D Wire Mesh Panels

Tolerances in this product refer to the allowable deviations in the dimensions and installation of the panels. These tolerances typically include:

  • Dimensional Tolerance: Permitted variations in the panel dimensions within specified limits.
  • Installation Tolerance: Acceptable deviations in the method or positioning of panel installation within defined thresholds.
  • Insulation Tolerance: Assurance that the insulating properties are maintained under predetermined conditions despite tolerances

Light Mesh Sheet

Light mesh sheet is a welded steel wire mesh produced by fully automatic electric machines, ensuring uniformity and high quality. This product is available in widths of 1, 1.1, and 1.2 meters, and lengths ranging from 1 to 6 meters. It is manufactured from acid-washed or galvanized steel wire with a diameter of 1.5 to 3.5 millimeters. The mesh openings are designed in dimensions of 5×5 cm or 5×10 cm, and the final weight is determined by the wire diameter and mesh type. Due to its high strength, lightweight nature, and flexibility, light mesh sheet is an ideal choice for the construction of prefabricated walls, wall reinforcement, excavation stabilization, and concrete flooring applications