What Is Insulation?
In order to understand what insulation is, it is useful to first understand what exactly it is not. In order to understand what is insulation it is useful to first understand what it isn’t: insulation can be as simple a substance as cotton canvas or as complex as a material such as Kevlar. It is, however, an integral part of a variety of buildings and structures from shacks and sheds to skyscrapers and houses. Interested readers can find more information about them at resource.
Building insulation is simply any material in a structure used primarily as insulation for one specific purpose, i.e., heat or cold resistance. While most insulation in most buildings is purely for energy-efficiency purposes, the word also applies to fire insulation, acoustic insulation, and molding insulation. Almost all of these materials are required to have at least some degree of insulation included regardless of the function. Molding insulation, for example, must be at least partially insulated, as its moisture vapor transmission will significantly reduce the effectiveness of the material. Otherwise, there would be no reason to ever use this material; molding insulation works very well when used with other forms of insulation to completely eliminate the moisture that can build up through other means.
A relatively new type of insulation that is becoming more widely used in both new construction and remodeling is rigid foam insulation. Rigid foam insulation is designed to achieve energy conservation by creating air pockets between the rigid foam cells. Because these cells are much more tightly packed, they provide a much higher R-value than the average fiberglass or cellulose insulation because of the air spaces between the cells. This higher R-value creates an increase in thermal resistance and prevents heat transfer to the interior spaces of a home or building.