External Wall Insulation (EWI) is a type of insulation that is applied to the outside of a building. It involves fixing an insulating material, such as polystyrene, mineral wool, or polyurethane, to the external walls of a building. The insulation is then covered with a weather-resistant finish, which helps to protect the insulation from the elements while also enhancing the aesthetic... https://bizbuildboom.com/external-wall-insulation-a-smart-choice-for-your-home-and-business/