Batt insulation also referred as blanket insulation is used in insulating floor, wall studs, ceiling joists, attic rafters, basements and crawl spaces. Its common use is between the framing of the home. It is manufactured from fiberglass, mineral wool, and denim cotton. Its pre-cut form (rolls and panels) makes it flexible and best suitable for application in residential and commercial properties. It comes in different material and thickness for optimal energy efficiency. There are variety of R-values in batt ranging from 8 to 50.