Heard of spray foam insulation, but unsure which type is right for your home? There are typically two main types of spray foam insulation used in residential (and commercial) construction - open-cell and closed-cell. Open cell foam insulation has a sponge-like texture while the closed cell foam insulation is rigid and able to reject bulk water. Which spray foam insulation material is right for your project and do they differ in performance? This infographic helps you understand the differences between the two types.