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Frequently Asked Questions - Sandwich Panel

In this article we will address common questions and concerns about sandwich panels. From its uses to its thickness, we'll cover everything you need to know about this versatile building material. Whether you are considering using sandwich panels for a project or simply want to learn more about them, this article will provide you with valuable information.

A sandwich panel, also called a composite panel, is a structure consisting of three individual elements: a low-density core material and two outer facings bonded to the core. The core material is responsible for providing stiffness to the panel, while the outer coatings, typically metal, such as steel or aluminum, provide durability and strength to the panel. Sandwich panels are widely used in the construction industry for roofing, cladding and insulation, due to their light weight, high structural performance and excellent insulating properties.

Sandwich panels are available in a range of types, each adapted to different structural and functional demands. Some of the most common variants are as follows:

– Roof panels: Specifically designed for overhead installations, these panels offer enhanced water drainage systems, anti-freeze properties and UV-resistant exterior coatings to ensure durability and weather protection.

– Wall panels: Designed to provide effective thermal insulation and aesthetic versatility to building facades, interior walls and partition systems. They can have different finishes, profiles and colors to complement architectural designs.

– Cold Storage Panels: Optimized for low-temperature environments, such as food factories and cold stores, these panels offer superior thermal performance and increased moisture resistance to preserve product quality.

– Fire-resistant panels: Constructed with flame-retardant properties to improve building safety and meet fire protection standards. These panels are essential to minimize the spread of fire and ensure occupant safety in commercial and industrial structures.

The versatility of sandwich panels allows them to be used in a wide range of applications in various sectors. From commercial and industrial buildings to residential structures, these panels serve as an integral component in the construction of:

– Industrial buildings and factories

– Agricultural buildings, such as barns and warehouses

– Modular construction and prefabricated structures

– Clean rooms and controlled environments

– Sports facilities, such as sports centers and gymnasiums

– Commercial and retail developments

– Single-family homes and residential projects

– Refrigerated warehouses and cold stores

The cost of sandwich panels can vary depending on several factors, such as dimensions, thickness, facing materials, type of core insulation and additional features such as fire resistance and acoustic insulation. In addition, market conditions, supplier prices and the scale of the project may influence the total cost of purchasing and installing sandwich panels. It is advisable to obtain detailed quotations from reputable manufacturers or suppliers, taking into account specific requirements and performance standards, to ensure that the panels chosen meet the project budget and quality expectations.

Sandwich panel installation requires adherence to industry best practices and relevant building codes to ensure structural stability, weather resistance and long-term performance. Proper installation is crucial to maximize the potential of sandwich panels for thermal efficiency, air and moisture control and overall building integrity. During the installation process, the following considerations must be taken into account:

– Substrate Preparation: Ensure that the underlying structure or substrate is in good condition, level and free of debris or protrusions that may affect the fit and performance of the panels.

– Sealant application: Employ high quality sealants and gaskets to create an airtight seal at the joints and perimeter of the panels, preventing water ingress and air leakage.

– Fastening and support systems: Use compatible and strong fastening systems, such as concealed hooks or through bolts, to secure the panels to the structural framing and allow for thermal movement and wind loads.

– Safety measures: Apply appropriate safety protocols during installation, including the use of personal protective equipment and fall protection systems for working at heights.

– Professional expertise: Hire experienced and certified installation crews or contractors to ensure accuracy and compliance with manufacturer’s guidelines.

Sandwich panels are highly appreciated for their exceptional thermal insulation properties, which contribute to the energy efficiency and indoor comfort of buildings. The core insulation material, commonly composed of rigid polyurethane, polystyrene or mineral wool, effectively mitigates heat transfer and reduces thermal bridges, improving temperature regulation and reducing heating and cooling costs. The airtight construction of sandwich panels, when properly installed, further enhances their thermal performance by minimizing heat loss and preventing air infiltration, creating a more sustainable and comfortable indoor environment.

The typical thickness of a sandwich panel may vary depending on its intended application and the specific requirements of the construction project. Typically, sandwich panels can range in thickness from 30 mm to 200 mm, with the core material accounting for a significant portion of the total thickness. Thicker panels are usually chosen for applications requiring higher levels of insulation and structural strength, while thinner panels may be suitable for partitions and interior cladding.

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