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PANEL GUIDE
What Is a Sandwich Panel?
A sandwich panel is a lightweight and durable building element with an insulation core between two metal facings, commonly used for roof and facade cladding.
Direct answer
A sandwich panel is a lightweight and durable building element with an insulation core between two metal facings, commonly used for roof and facade cladding.
Technical review: MDES Engineering Technical TeamUpdated: 2026-08-05
How is a sandwich panel built?
Sandwich panels generally consist of two metal facings and an insulation core placed between them. The metal facings provide mechanical strength, while the core material defines thermal insulation, acoustic performance and fire behavior.
Where is it used?
They are preferred as roof and wall cladding for factories, warehouses, logistics centers, production facilities, commercial buildings, sports facilities, agricultural buildings and cold storage areas. Their lightweight structure enables fast installation without adding unnecessary load to the building frame.
Why is it preferred?
Thermal insulation, fast installation, clean appearance, low maintenance requirements and different thickness/color options make sandwich panels an economical and practical building solution. Correct panel selection directly affects energy performance and indoor comfort.
Selection criteria
Panel thickness, metal sheet thickness, core material, fire class, coating type, RAL color, installation detail and project climate conditions should be evaluated together. The same panel type may not be suitable for both roof and facade applications.
Key points
- Provides fast roof and facade installation.
- Offers thermal insulation and weather resistance.
- A lightweight envelope solution for industrial and commercial buildings.
Frequently asked technical questions
How is a sandwich panel built?
Sandwich panels generally consist of two metal facings and an insulation core placed between them. The metal facings provide mechanical strength, while the core material defines thermal insulation, acoustic performance and fire behavior.
Where is it used?
They are preferred as roof and wall cladding for factories, warehouses, logistics centers, production facilities, commercial buildings, sports facilities, agricultural buildings and cold storage areas. Their lightweight structure enables fast installation without adding unnecessary load to the building frame.
Why is it preferred?
Thermal insulation, fast installation, clean appearance, low maintenance requirements and different thickness/color options make sandwich panels an economical and practical building solution. Correct panel selection directly affects energy performance and indoor comfort.
Which information is required for a sandwich panel quotation?
Specify the application, roof or wall type, core material, panel thickness, steel thicknesses, colour, total area, accessories, project location and delivery point. Fire and thermal performance must be confirmed against the project specification before ordering.
Technical references
- EN 14509 self-supporting double-skin insulating panels
- EN 13501-1 reaction-to-fire classification
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