Roofing sandwich panels are three–layer trapezoidal panels with polyurethane foam insulation (PUR). They are used as roofing for all types of buildings with a roof slope of more than 5-7°.

They have excellent thermal insulation characteristics and are resistant to corrosion.

Structure

Structurally, the roofing sandwich panel is a three-layer structure. The outer layers of the panel consist of a skin and a protective coating.

The covering of the roof panel is made of galvanized steel sheets 0.40-0.50 mm. As a protective coating, a polyethylene film with a thickness of 0.5 mm acts, which protects the roofing panels from mechanical damage. The inner layer is the space between the sheets, which is filled with polyurethane foam (PUR), which acts as a high-quality thermal insulation material.

Design of roofing sandwich panels

Basic parameters:

• Surface: on the one hand, the profile of the panel has stiffeners in the form of trapezoidal projections with a height of 40 mm, on the other hand, a micro profile with a depth of 1.5 mm.
• Filler: hard polyurethane foam (PUR, PIR) is used
• Width: 0.96 mm.
• Length: up to 12,000 mm.
• Thickness: 60, 80, 100 mm.