For those who are unfamiliar with this process, this has been considered as a great alternative for the usual building insulation\’s like the fiberglass. This is a mixture of two components which contain polyol resin and isocyanate that shall form as foams with nice expandability and finally sprayed wherever is necessary like concrete slabs, roof tiles, drilled holes, or even wall cavities. We may wonder how these are important yet we should know that these are very essential for buildings.