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1 2025

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Analysis of water leaks and savings strategies in commercial buildings and the impact of leed certification on water system operating cost

Knapik Maciej

Zeszyty Naukowe SGSP / Szkoła Główna Służby Pożarniczej

2025

Nr 95 (tom 1)

41--58

Given the rising operational costs and an escalating scarcity of water resources, efficient water management in commercial buildings has become critical for sustainable development. This article investigates water losses resulting from leaks and evaluates the effectiveness of selected technical solutions aimed at reducing consumption, including solenoid valves, water-saving fixtures, and leak detection systems. In buildings pursuing LEED certification, average annual water losses are estimated at approximately PLN 14,000 (average PLN 0.7/m2), while in conventional buildings they may be up to 50% higher. The economic analysis indicates a short payback period for investments in technologies that minimise losses and confirms that LEED certification contributes to lowering operational costs and enhancing environmental performance. It is important to emphasise that LEED certification is not, in itself, the direct cause of reduced operational costs, but rather a formal confirmation of the implementation of a range of design and technological solutions that contribute to such reductions.