insulation material
Forms and substances used as thermal insulators in building walls, roofs, and facades.
Insulation materials are specifications of the substances used in thermal insulation of building walls, along with the physical forms they assume when applied. A single substance may be listed multiple times when it takes on different forms, as its application method and effectiveness may vary according to its form.
Thermal insulation is usually applied to the outer walls and roof of a structure, but it can also be applied to windows, interior walls, and the ground-facing surface. It refers to materials which serve to maintain equilibrium of temperature and save energy. It does not refer to pipe insulation, wire insulation, or any type of insulation which protects limited components of a structure rather than whole rooms.
The main categories under this heading are the basic forms of insulation, and generally easier to ascertain than the subheadings, which are specific materials and compounds, and require precise knowledge. Insulating materials are often installed under trademarks or brand names, without a visible generic name.