Sustainability targets can conflict with fire safety requirements. We examine the tensions and engineering solutions.. The Green Safety Tension The UK's 2050 net zero target is driving changes in building design that can conflict with fire safety. Key Conflict Areas 1. External wall insulation — combustible insulation on existing buildings for energy retrofit 2. Solar panels — PV installations affecting firefighter access and creating additional fire load 3. Battery storage — domestic and commercial BESS systems with thermal runaway risk 4. Heat pumps — refrigerant fire/toxicity risks in plant rooms 5. Natural ventilation — conflict with smoke control requirements 6. Mass timber — sustainable but combustible structural material 7. Green roofs — maintenance requirements to prevent fire load accumulation Engineering Solutions Fire engineering provides the evidence based approach to resolving these conflicts — demonstrating how both sustainability and safety objectives can be achieved simultaneously. For sustainable fire safety solutions, contact Magnus Opifex.