Sustainability in hospital facilities and healthcare centres is not based solely on taking renewable energy, emissions reduction or waste management into account. Nowadays, it is necessary to apply a more rigorous approach to the design, execution, maintenance and operation of building services that must function continuously, safely and efficiently for decades.

Hospitals are particularly intensive buildings from an energy and operational standpoint. They require permanent HVAC, domestic hot water production, domestic water networks, ventilation, drainage, fire protection and control systems capable of guaranteeing continuity of care under highly demanding conditions.

For this reason, any decarbonisation strategy applied to the healthcare sector must go beyond an isolated measure. It is not enough to act on energy production or replace equipment; it is necessary to understand the building as a living system, where every technical decision has an impact on consumption, maintenance, durability, waste generation and people’s safety.

In this context, sustainability ceases to be an attribute added at the end of the project and becomes part of the earliest design decisions: which materials are selected, how networks are sized, what pressure losses are generated, what maintenance will be required, what service life the installation will have, what data will be recorded and how resources can be optimised during the building’s actual operation.

Sustainability starts before construction

A significant part of a building services environmental impact is determined long before the building becomes operational. The choice of materials, design criteria, ease of assembly, expected durability and maintainability all shape the asset’s entire life cycle.

This concept is particularly relevant to mechanical installations. An improperly sized hydraulic network, made with materials that are not sufficiently durable or prone to corrosion, can result in greater pressure losses, higher energy consumption associated with pumping, more corrective interventions, more replacements, more waste and greater disruption to service.

Conversely, designing installations with durability in mind makes it possible to reduce impacts sustainably over time. This is one of the key principles of technical sustainability, as it involves preventing the installation from ageing prematurely, losing performance or requiring constant intervention.

Life cycle, traceability and responsible decisions

Sustainability in buildings requires data, traceability and verifiable criteria. In the field of technical installations, tools such as Environmental Product Declarations make it possible to integrate materials into building life-cycle assessments and evaluate their impact more objectively.

This approach is particularly important in hospitals, where technical decisions must balance multiple variables: safety, efficiency, durability, maintenance, life-cycle cost and operational continuity. The ability to provide environmental information, reduce future impacts and align with sustainable procurement strategies is becoming increasingly important.

In this regard, solutions with raw-material traceability, circularity and recyclability criteria, and contributions to environmental certifications such as LEED, BREEAM or VERDE, enable sustainability to be incorporated into the project on a technical rather than merely declarative basis.

Even so, it should not be understood as a collection of certificates. Certificates help organise information and enable comparisons, but the true value lies in how these materials perform over the years within the building.

Energy efficiency also means hydraulic efficiency

When discussing decarbonisation in hospitals, the conversation usually focuses on HVAC, heat recovery, electrification, energy production or improvements to the building envelope. These are essential areas of work, but there is a less visible dimension that also has an impact: the hydraulic efficiency of installations.

Water, HVAC and domestic hot water networks require energy to move fluids. Therefore, any reduction in pressure losses, any improvement in network stability and any decision that preserves hydraulic performance over time contributes to reducing operational consumption.

Networks with smooth, stable internal surfaces that are resistant to corrosion and the formation of deposits can help maintain better flow conditions throughout the installation’s service life. This not only supports the energy efficiency associated with pumping, but also improves system reliability.

In a hospital, efficiency cannot be separated from continuity of service. An efficient installation is not merely one that consumes less; it is one that maintains its performance, avoids unnecessary shutdowns and reduces corrective interventions in sensitive areas.