Sandwich panels are used where high structural rigidity, low weight in conjunction with thermal insulation is required. The variety of applications cover: commercial and industrial buildings, logistics halls/centers, rural construction, sport halls, food-save warehouse offices, farm buildings. The core is commonly made of polyurethane or mineral-wool in case of high fire-resistance. The outer and inside layer is made of coated steel or aluminum, whereas the outside shape is modified with various design patterns like wave, microwave, decorative profile, i.e.
Available thicknesses of the core vary between 30 - 200 mm, the thickness of the metal layer is ~0,6 - ~1.2 mm. Modules are commonly offered in width from 300 - 1100 mm and length up to 18.00 m.
- low maintenance costs
- many aesthetic variations in shape and design available
- fire resistance (mineral-wool panels) is very good
- continuous core
- visible or hidden fixation
Sandwich panels are used for entire wall and roof constructions. During the last decade strong improvements were achieved related to the interconnection of the panels resulting in hidden fastening and a significant loss of thermal bridge behavior. Today sandwich panel systems are most widely used for industrial buildings - one single construction element to set up a complete wall or roof.
The illustration above shows some example cross-sections.