Bay Insulation Systems is the leading supplier of metal building insulation and systems in North America. With 25 facilities strategically located throughout the United States and Canada, our Experience, Quality and Service are second to none. At Bay, we use NAIMA 202-96 fiberglass blanket and superior quality vapor barriers to produce custom-laminated metal building insulation that meets the NIA Certified Faced Insulation® Standard 404.2-2024. We also offer Factory Mutual approved insulation.