How Heat Flows Through Walls Wit h And Without Insulaon? Fiberglass:- Fiberglass or glasswool is an insulaon material made out of fibers of glass that are carefully arranged with the use of a binder in a texture that is similar to wool. It is produced from mineral fibers. Glasswool is formed through molten glass at an extremely high temperature of about 1450 degrees celcius. Fibers are spun from the melted glass. Glasswool insulaon is kind of a loose filled material that is blown into walls, acs, roofs or floors. With the help of an acve binder, the glasswool material is sprayed underside of the structures. Fiberglass Insulaon is made in such a way that it is compressible and it’s fibres are bonded together with high temperature binders. Thus it has thermal as well as acousc properes. It is produced in rolls as they have different thermal or mechanical characteriscs In the process of producon of glasswool, air pockets are trapped between the glass which results in the high properes of insulaon provided by it. Since gases have poor thermal conducvity, they are trapped and make good insulaon materials. That’s why glasswool insulaon for roof is an ideal choice.