Thermal insulation refers to the set of insulating materials and construction techniques that reduce heat transmission between two objects in thermal contact or in range of radiative influence
. It can be achieved with specially engineered methods or processes, as well as with suitable object shapes and materials
. Thermal insulation materials limit the rate of heat flow between objects or substances, and materials with the lowest thermal conductivity will provide the highest performance insulation
. Some of the most common thermal insulators are fiberglass, mineral wool, polyurethane foam, and polystyrene
. Thermal insulation helps maintain the desired environment by preventing heat loss from any given space, and proper insulation can have a range of benefits, including increased energy efficiency and reduced energy costs
