A twin head gas torch is a specialized tool that attaches to a gas bottle, featuring two burner heads to provide a broader and more even distribution of heat. It is commonly used in roofing, particularly for tasks like applying heat to large areas of roofing membranes or materials. The twin heads create two focused flames that work simultaneously, speeding up the process of melting or sealing materials, such as bitumen or tar, for a strong, waterproof bond. This type of torch is ideal for roofing professionals, offering increased efficiency and coverage for large roofing projects.