At Armour Spray foam we use Genyk Boreal Nature Closed Cell which is a two-component, medium density, one to one by volume spray-applied polyurethane foam. Genyk Boreal Nature Closed Cell is an insulation system designed for use in commercial and residential applications. We use in lieu of more traditional forms of insulating materials such as fiberglass, cellulose, or other loose fill products. Typical areas where Genyk Boreal Nature Closed Cell is applied are exterior and interior walls, vented attics, unvented attic assemblies, and between floors.