Fiberglass is an insulation material composed mainly of glass. However, fiberglass can also be used in the manufacturing of different products, including automobiles. As an insulator, fiberglass works to trap air and slow the transfer of heat.
In most cases, fiberglass comes in a blanket form (called batts), but it’s also available as loose-fill. These fiberglass batts are available in different thicknesses that determine the resistance to heat flow. This heat resistance is measured by the R-value, which ranges from R11 to R19 for walls and can go as high as R30 for ceilings and attics.
Fiberglass – which consists of extremely fine glass fibers – is an insulation material that is found in most homes.
It is commonly used in two different types of insulation, which are batts and rolls, and loose-fill. It is also available as rigid boards and duct insulation.
Currently, manufacturers produce medium- and high-density fiberglass batt insulation products that have a slightly higher R-Value than standard batts, according to the U.S. Department of Energy. Fiberglass can be placed in unfinished walls, floors, and ceilings. It is fitted between studs, joists, and beams.
Fiberglass is made to slow the spread of heat and cold in both residential and commercial insulation projects. Fiberglass makes for a good option for homeowners looking to save a few dollars or do the installation as a do-it-yourself project.