The exterior of this type of sandwich panel is covered with colored galvanized sheet and its interior is covered with four-layer aluminum foil, and it is very popular due to the significant price difference with double-sheet ceiling sandwich panels. The applications of this type of panel are places where the interior appearance is not very important or where the ceiling will be covered with a false ceiling.
| Specification table for 5-step ceiling sandwich panel, one-sided sheet, one-sided foil with polyurethane foam | ||||
| Sandwich panel thickness | 25 mm | 40 mm | 50 mm | 60 mm |
| Thermal conductivity (w/m) | 90 hundredths | 45 hundredths | 34 hundredths | 28 hundredths |
| Fire resistance class | B2 | |||
| Sound reduction | Minimum 10DB | |||
| Panel width (useful width) | 1000 mm | |||
| Sandwich panel length | Minimum 2 meters, maximum 14 meters | |||
| Distributed load bearing table for 5-step ceiling sandwich panels, one side sheet, one side foil with polyurethane foam | ||||||||
| Insulation thickness (MM) | Outer sheet thickness (MM) | Inner sheet thickness (MM) | Distance between openings (MM) | |||||
| 100 | 1500 | 2000 | 2500 | 3000 | ||||
| 25 | 50 cents | 4-layer aluminum foil | 141 | 78 | 55 | 42 | 33 | |
| 40 | 50 cents | 4-layer aluminum foil | 282 | 157 | 109 | 84 | 66 | |
| 50 | 50 cents | 4-layer aluminum foil | 350 | 200 | 141 | 109 | 78 | |
| 60 | 50 cents | 4-layer aluminum foil | 434 | 254 | 182 | 141 | 92 | |
