The case can be made for spray foam performing better than all other insulation products. This form effectively stops air movement, allowing for excellent insulation against temperature exchange. The drawback is the cost which makes it prohibitive to many homeowners.
Open-cell spray foam (bubbles that burst upon application) expands and fills cavities. But it renders a lower R-value compared to its closed-cell cousin that retains bubble-integrity that gives a more complete seal against air, water, and vapor.
Compared to any insulation material on the market, closed-cell spray is the top of the top. It offers the highest R-value of them all because of its density and because it forms cells of trapped gas that can help boost the R-value by up to 70%.
There's much to think about in the decision of updating or replacing your insulation. Not to worry, we offer you a free expert consultation to assist you in making such an important upfront decision.