Aluminum strips are used in the production of several types of insulation materials. One common type is reflective insulation, which uses aluminum's reflective properties to reduce heat transfer. This can be found in the form of foil insulation or radiant barrier insulation. Another type is aluminum foil-backed insulation, often used in HVAC systems to prevent heat loss. Additionally, aluminum is a component in some types of flexible duct insulation, providing both thermal and acoustic insulation. Lastly, aluminum is used in certain types of thermal insulation boards, which are used in construction to provide thermal resistance. These materials are valued for their durability, resistance to corrosion, and effectiveness in thermal management.