BaySystems™, the umbrella brand for the global polyurethane systems operations of Bayer MaterialScience, announced its Bayseal™ CC (closed-cell) spray polyurethane foam has received an International Code Council (ICC) Evaluation Report ESR-2072. This certification includes the approval of Bayseal™ CC spray foam insulation as an alternative to a thermal barrier for ceiling and wall applications, when used in combination with Flameseal TB™ spray-applied thermal coating. This approval is an industry first for spray foam insulation. Building code requires that insulation used in walls and ceilings have a 15-minute thermal barrier for protection against fire. The most common thermal barrier used is a solid wallboard, such as gypsum board. As a result of the approval, Bayseal™ CC spray foam in combination with Flameseal TB™ spray coating can be employed by builders to insulate safely while meeting code requirements.
According to the company, a spray-applied alternative to a thermal barrier leads to cost efficiency and convenience of use in insulation products particularly, in applications where a wallboard thermal barrier or unusual shaped structures may provide cost challenges. The ICC-ES report also confirmed Bayseal™ CC's excellent aged R-value of 6.9 at one inch and 24 at 3.5 inches and that the material has a vapor permeability rating of less than 1.0 at one inch foam thickness, making it a vapor retarder. This further validates the multi-functionality of Bayseal™ CC spray foam as a premier insulation material, with the added functionality of vapor retarder and air barrier. The vapor barrier function is especially important in hot/humid and cold/dry climates, where condensation and mold can be a problem.