Specifically with ICF, nothing blows through reinforced concrete. There will be absolutely no drafts or cold spots. ICF homeowners have commented on how constant temperatures stay within their homes. Because of the tremendous thermal mass of the exterior wall envelope, temperature peaks are smoothed, and therefore homes are noticeably warmer in the winter and cooler in the summer. There are no CFCs, HCFCs, or formaldehydes, and also no wood to rot and mold. ICFs are the answer for allergy and asthma sufferers. They have a two-hour fire rating and are termite and pest resistant. But most importantly, these structures can withstand a severe storm hit.
With Truseal foam insulation in a wood frame structure, the walls are completely sealed. The foam fills all voids, seams, and conforms to the structural design, prevents condensation in walls due to air transfer, and inhibits support mold growth. Foam insulation also creates a more stable climate in the home/building so there are no cold/hot spots . The insulation seals the walls so that there is no air transfer which leads to dust, poor air quality, and keeps pests from entering the home.