Design parameters
| Standard | EN 12845 |
| Hazard class | OH2 |
| Design density | 5.0 mm/min |
| Area of operation | 144 m² |
Design notes
- Use upright heads with deflectors clear of soffit services
- Add deluge or watermist in EV charging zones where required
- Frost protection: dry pipe or antifreeze loop for ramps
- CO/NO₂ ventilation interlock for smoke clearance
Typical equipment
- Upright K115 sprinklers
- Dry pipe valve set
- Diesel pump + tank
- Hydrant ring 4 bar
How FireTwin AI handles car park projects
Upload your floor plan or model the building footprint directly. FireTwin AI classifies rooms, applies the EN 12845 OH2 grid, runs the hydraulic calculation from the most remote area back to the pump, and produces a priced BOM — all re-verified on every edit.