| Property | System 3E EKO+ | Aggregate Block (Fibo) | Aerated Concrete (Bauroc) | Hollow Concrete Block |
|---|---|---|---|---|
| Outer wall insulation | None required (0% extra layers) | Required (min 150-200mm) | Required or very thick block | Required obligatorily |
| U-value (finished wall) | 0.198 W/m²K | ~0.20-0.22 (insulated) | ~0.20-0.25 (insulated) | ~0.22 (insulated) |
| Mortar / Glue need | None (dry installation) | Mortar / Masonry mix | Block glue | Mortar / Concrete pouring |
| Fire resistance class | REI 240 + M | REI 120-180 | REI 120-240 | REI 180 |
| Speed of installation | Very fast (~10 min / m²) | Time-consuming (drying time) | Medium (glue drying) | Time-consuming (pouring+drying) |
| Weather sensitivity | None (frost and rain proof) | High (mortar freezes) | High (glue freezes) | High (concrete cannot freeze) |
| Wall thickness without finish | 352 mm | ~350-400 mm with insulation | ~375-500 mm | ~390-440 mm with insulation |
Summary: The System 3E EKO+ block allows building a fully compliant insulated outer wall in a single work operation without installing external insulation (wool or foam). This avoids thermal bridges, saves time, and reduces the total cost of construction.