Sustainability, Energy Efficiency, and Indoor Comfort
Wartime or not, buildings must meet sustainability and comfort standards – arguably, these considerations become even more critical during conflict. With energy infrastructure being a prime target (Ukraine’s critical power and heating networks have suffered repeated attacks), new buildings need to be as energy-efficient and self-reliant as possible. Environmental performance should thus be a core part of the design brief, not an afterthought. In fact, experts argue that reconstruction projects should not relax energy standards; buildings damaged in the war should still comply with modern energy efficiency requirements rather than revert to outdated norms. Every new or repaired façade should include proper insulation and high-performance glazing to minimize heat loss, which in turn reduces reliance on external heating fuel. Likewise, roofing and ceiling design can contribute – for instance, adding insulation above a suspended ceiling or using reflective roof panels to maintain stable indoor temperatures.
Architects are encouraged to integrate renewable energy solutions where feasible. Photovoltaic panels on facades or rooftops, solar hot water heaters, and even small wind turbines can provide buildings with backup power and heat during grid outages. Passive solar design, such as south-facing windows with shading devices, can capture warmth in winter and reduce overheating in summer, improving a building’s energy resilience. Ventilated façades (such as those produced by Mehbud) have an inherent advantage in energy performance: the air gap behind the cladding can reduce heat transfer, acting as a buffer against both cold and heat. This can significantly improve the thermal performance of walls. When combined with efficient insulation materials, a well-designed ventilated facade keeps interiors warmer during power cuts on freezing days – a life-saving difference when heating systems fail.
Another pillar of sustainability is material circularity and local sourcing, which we touched on earlier. Using local and recycled materials lowers the carbon footprint of reconstruction and avoids the emissions and delays of long-distance transport. European and Ukrainian authorities alike are urging that rebuilding be done “better and more sustainably” by default. For architects, this means choosing low-carbon materials (like fly-ash concrete, sustainably harvested timber, or recycled metal) and considering a building’s lifecycle. Metal products, again, offer an advantage here: steel from demolished structures can be recycled and re-fabricated into new steel ceilings, fences, or frame elements, creating a circular loop. Designing with deconstruction in mind (so components can be taken apart and reused) is a forward-thinking strategy that also aligns with building back greener.
Indoor environmental quality is another aspect of comfort that cannot be ignored, especially when occupants might be spending long hours in sealed conditions due to air-raid alerts or curfews. Proper ventilation and acoustic performance are paramount. In wartime, people often shelter in basements or interior rooms for extended periods, which can lead to stale air and high CO₂ levels if ventilation is poor. Architects should incorporate adequate mechanical ventilation systems with filtration. For example, a modern shelter or safe room might have a dedicated HVAC unit with HEPA filters and even NBC (nuclear, biological, chemical) filtration capacity if chemical attacks are a concern. These systems can be hidden above ceilings or within facade bulkheads. Suspended ceiling systems are very useful here – they create space to run ductwork and install diffusers or air purification units out of sight. Mehbud’s metal ceilings are robust enough to hold such equipment and can be perforated with acoustic/airflow perforations if needed, allowing them to double as acoustic panels that also let air circulate.
Acoustic comfort is particularly relevant given the stress of sirens and explosions. A well-insulated façade with laminated glass will not only improve energy efficiency but also dampen outside noise – a double benefit. Inside, acoustic ceiling panels and wall treatments can significantly reduce the reverberation and noise within crowded shelters or open-plan areas. This improves intelligibility of announcements (important for emergency instructions) and reduces the psychological strain of a noisy environment. In offices or schools operating during air-raid warnings (as many in Ukraine do), acoustic design lets work and learning continue with less disruption. High NRC (noise reduction coefficient) ceiling tiles or metal ceilings with sound-absorbing pads can be installed in classrooms, conference rooms, and hospital wards to maintain a quieter atmosphere.
A shining example of prioritizing ventilation and comfort is the CLUST Space shelter in Kyiv: “CLUST SPACE is perfectly adapted for air alarms, because there is always light, clean air and even bathrooms that work without interruption.” The designers equipped it with an independent ventilation system (with special filters to block chemical or radioactive agents for up to three days) and backup power supply. In the event of an outage, occupants still have fresh air, electricity, and functional toilets, thanks to generators and a pumping station. This level of self-sufficiency should inspire architects to incorporate at least some degree of backup systems in their projects – whether it’s emergency lighting via solar battery, a gravity-fed water storage for plumbing, or simply the ability to connect a mobile generator to essential circuits. By doing so, buildings remain habitable and safe even when municipal services are temporarily knocked out.
In conclusion of this section, sustainability and comfort are not peacetime luxuries – they are essential components of architectural resilience. A building that stays warm when the heat is off, supplies fresh air in a sealed environment, and keeps occupants calm and healthy is a building that truly protects life. Achieving this requires integrating energy-efficient design, sustainable materials, and robust MEP (mechanical, electrical, plumbing) systems into the very concept of wartime architecture. Ukraine’s reconstruction is an opportunity to build a greener, more self-reliant urban landscape that not only withstands war, but also addresses longer-term challenges like climate change and energy independence.