The Mia Stihl Kindertagesstätte in Waiblingen is a reinforced concrete structure spanning two upper floors beneath a reinforced concrete saddle roof. At 1,500 m² GFA, the building is compact, but the construction system is not simple: a concrete roof geometry that pitches rather than sits flat, combined with a composite façade construction, means the LP5 reinforcement planning has to resolve geometry and load path simultaneously — concrete saddle roofs carry their own bending and thrust patterns that a flat slab does not.

CN Europlan delivered LP5 detailed design and reinforcement plans for the structure, working from the architectural design by hartwig schneider architekten and alongside structural engineer Fischer + Friedrich. For a childcare facility — a building type where structural tolerances and construction sequencing are scrutinised closely given the occupancy — reinforcement documentation that anticipates the saddle roof's geometry at the rebar level, rather than resolving it on site, is what keeps the build on schedule.

Key Takeaways

• Reinforced concrete saddle roof: A pitched concrete roof generates different reinforcement patterns than a flat slab — thrust and bending must be resolved in the rebar layout itself, not improvised at the formwork stage.
• Composite façade integration: The façade's composite construction required reinforcement detailing that accounts for connection points between the structural frame and façade elements.
• Two-storey concrete frame at occupancy-sensitive scale: A childcare facility demands a construction documentation set that leaves no ambiguity for the contractor — small buildings still carry the full coordination burden of a larger one.