Heat absorbers, both roofs and walls, which we often know as insulation, are various materials used to maintain a stable temperature in a room so that all occupants of the room can feel comfortable while in the room.
Materials for a heat and air temperature absorber are usually a variety of materials that are created to make a room soundproof and feel comfortable. Such as: Glasswool, Glascloth, ceramic fiber, Fiberglass Cloth, Rockwool etc