
Sandwich panel is made from two sheets of galvanized steel, filled with high-quality thermal insulator - foamed polyurethane, which reduces the heat loss and prolongs the service life of the door. The front and back steel sheets are not connected, eliminating cold bridge effect, which ensures heat insulation and prevents from freezing. in the joint is polyurethane isolated by durable and waterproof Energoflex

| R-value: | 1,13 m²·°С/W |
| Wind load: | 2 class (EN12424:2000) |
| Airtightness: | 4 class (EN12426:2000) |
| Watertightness: | 3 class (EN12425:2000) |
| Acoustic insulation: | <35 dB |
| Necessary lifting force: | to 22.5 kg |
| Door sheet weight: | 11,2 kg/m² |