Formulated for optimized yield as well as minimized waste and required application time, APX can insulate and air seal residences, schools, and commercial buildings. This low-density, open-cell polyurethane spray foam insulation has R-value of 3.7 at 1 in. and meets ICC-ES fire test standards for use in attics without protective fire coating. Also compliant with IBC, IRC, and IECC, this half-pound, low VOC-compliant density foam passes AC377 Appendix X test.