| Property | System 3E EKO+ | Lightweight expanded clay block (Fibo) | Aerated concrete block (Bauroc) | Hollow concrete block |
|---|---|---|---|---|
| Exterior wall insulation | Not needed (0% extra layer) | Needed (min 150-200mm) | Needed or very thick block | Mandatorily needed |
| U-value (finished wall) | 0,198 W/m²K | ~0,20-0,22 (insulated) | ~0,20-0,25 (insulated) | ~0,22 (insulated) |
| Mortar / Glue requirement | None (dry installation) | Mortar / Masonry mixture | Block glue | Mortar / Concrete casting |
| Fire resistance class | REI 240 + M | REI 120-180 | REI 120-240 | REI 180 |
| Installation speed | Very fast (~10 min / m²) | Time-consuming (drying time) | Medium (glue drying) | Time-consuming (casting+drying) |
| Weather sensitivity during construction | None (frost and rain proof) | High (mixtures freeze) | High (glue freezes) | High (concrete cannot freeze) |
| Wall thickness without finish | 352 mm | ~350-400 mm with wool | ~375-500 mm | ~390-440 mm with insulation |
Summary: The System 3E EKO+ block makes it possible to build a thermally efficient exterior wall that meets standards in a single operation without installing additional insulation (wool or styrofoam). This prevents thermal bridges, saves time and reduces the total cost of construction.