Labels:bird | hakham | magnetic stripe | reckoner | sky | window OCR: Technical Aspects other technology advances Advanced Adhering and fastening mechanisms allow easier installation and provide better insulation for all technologies For example urethane foam can be used as an adhesive for boardstock insulation securement EPS Polyiso and SPF can be tapered for water slope drainage Coatings used on the top surface of the roof vary with climatic regions In colder climates VOC-containing silicone coatings are typically used while zero-VOC acrylic coatings acceptable in hotter climates Insulation technologies that have switched to non-HCFC blowing agents have greatly reduced their environmental impact. Some of the non-HCFC blowing agents available include pentane carbon dioxide fluorocarbons and even water 22 switchec oentane
