How does insulation burn?

Insulation can burn when exposed to high temperatures or open flames, as many types are made from materials like foam, fiberglass, or cellulose, which can ignite. Once ignited, insulation can release toxic gases and contribute to the spread of fire if not properly rated for fire resistance. The burning process typically involves the breakdown of its chemical structure, leading to combustion. Proper installation and the use of fire-resistant materials can help mitigate these risks.