WILL SPRAY POLYURETHANE INSULATION ABSORB OR ENTRAP MOISTURE?
Most moisture problems in houses are due to moisture entry from air leakage. Because spray polyurethane insulation provides such an excellent air barrier, this source of moisture is virtually eliminated. Other potential sources of moisture can be excluded with proper construction techniques and materials. Unusual building use (such as freezers or swimming pool buildings) may require a vapor retarder. Contact NCFI regarding your specific situation if you have any questions.