What is the best way to insulate underneath the subfloor of my home?
In most circumstances, the best way to prevent moisture from entering your home through the sub-floor and to insulate effectively is to have half pound, open-cell foam insulation installed at the sub-floor. Because this foam is an air barrier, the moisture-laden air of southeast Louisiana cannot move through the insulation to bring heat and humidity into the home. Also, the foam insulation will not fall out or become home to small animals that might like to live in other types of insulation.
