Sustainable building design creates new fire safety challenges. Solar panels, green roofs, timber construction, and insulation materials need careful consideration.. Sustainability and Fire Safety Tension Solar Panels (PV) Fire risk from electrical faults and arc faults Firefighter safety — panels remain live in daylight Spread of fire risk if panels are on combustible substrates BS EN 63027 for fire safety of PV systems on buildings Green Roofs Vegetation can be a fuel source if not maintained Irrigation systems may need fire safety backup Drainage layers can channel fire Design guidance in GRO Green Roof Code Mass Timber (CLT) Combustible structural material Encapsulation vs exposed timber debate Charring rate calculations per EC5 Post Grenfell scrutiny of combustible materials Insulation Materials EPS and XPS — combustible but widely used Mineral wool — non combustible but more expensive PIR/PUR — combustible but high performance Bio based insulation — variable fire performance For sustainable fire engineering, contact us.