Definition: Pre-insulation is a process or procedure that involves preparing a building or structure in order to reduce its thermal resistance, which refers to the resistance of a material to heat transfer. This practice can be applied to various buildings and structures such as houses, offices, shops, and factories to minimize energy consumption and save on costs. The goal of pre-insulation is to increase the insulation capacity of the building by reducing the amount of heat that escapes through gaps or cracks in the walls, floors, and other