What are the fire-resistant properties of granite and marble in outdoor seating?
Granite and marble are popular choices for outdoor seating due to their natural fire-resistant properties. Granite, an igneous rock, can withstand extremely high temperatures (up to 1200°C) without cracking or losing structural integrity. Its dense composition makes it highly resistant to heat transfer, keeping surfaces cooler. Marble, a metamorphic rock, also offers good fire resistance (up to 800°C) though slightly less than granite. Both stones don't combust or emit toxic fumes when exposed to fire, making them safe for outdoor use. Their thermal mass helps regulate temperature fluctuations, preventing heat damage. These properties, combined with their durability and low maintenance, make granite and marble ideal for fire-safe outdoor seating in parks, patios, and public spaces.