residential builder You are hereYou are here: Home / residential builder Spray Foam Myths Debunked: Unvented attics need more insulation and R-value than conventional atticsJuly 12, 2017 - 11:00amConfidently bust the myths about spray foam insulation so you can make informed decisions about the materials you specify and use in your residential or commercial buildings. Tags: unvented atticmythsmisperceptionsfactfictionspray foam insulationatticsvented atticicynenefoam insulationroofresidential builderresidentialhomearchitects Pages1 2 next › last »