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REBUILD – Full‑Scale Experimentally Validated Reversible Solutions for Low‑Carbon and Circular Building Renovation

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REBUILD aims to accelerate climate‑neutral building renovation by enabling large‑scale adoption of reversible, low‑carbon building systems. It integrates construction products, building envelopes and technical building systems within a harmonised whole‑life carbon (WLC) and circularity framework, directly addressing gaps identified in the Built4People call.

To support robust decision‑making, REBUILD applies Life‑Cycle Assessment (LCA)—a standardised method for quantifying environmental impacts across all life‑cycle stages—and Life‑Cycle Costing (LCC), which evaluates all renovation‑related costs over the building’s lifetime. These are combined with circularity metrics aligned with Level(s), EPBD, EN 15978/15804 and EN 16627.

The project develops six innovations:
• system‑level integration of circular, reversible solutions;
• a renovation‑specific WLC framework;
• a multi‑criteria decision‑support tool combining WLC, LCC, technical and circularity indicators;
• full‑scale prototype validation in three European climates;
• parametric and BIM‑based digital workflows;
• standardisation‑ready guidance and circular business models.

Performance is validated through extensive testing, including Non‑Destructive Testing (NDT)—methods such as ultrasound, infrared thermography, radar scanning and chemical screening that assess material integrity without damage—and Destructive Testing (DT), including core sampling, bending/shear tests and cyclic loading to verify structural capacity, durability and fire performance.

Full‑scale prototypes demonstrate ≥20% WLC reductions, ≤5% damage during disassembly and ≥25% reductions in installation/disassembly time. These results feed into benchmarks and certification pathways, supporting EU‑wide harmonisation.

REBUILD thus delivers validated solutions, digital tools and standardisation inputs that reduce embodied carbon, increase reuse and accelerate circular renovation—fully aligned with the call’s expected outcomes.

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HORIZON-RIA - HORIZON Research and Innovation Actions

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Aufforderung zur Vorschlagseinreichung

(öffnet in neuem Fenster) HORIZON-CL5-2026-02

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