Open and close cell spray foam insulations are both used for stopping the movement of air and reduce the transfer of heat. The essence of the above is to reduce the heating costs in most homes.
However, while both have the same purpose, there are so many things that differentiate them and make each one the choice under different conditions. Understanding the features and benefits of each of this insulation methods is very important when a choice is to be made.
The difference between open cell and close cell spray foam can be traced down to three distinct features: cost, thickness, and climatic preference.

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Cost of Materials and Installation.
Open cell sprays are made of less expensive materials that makes it easier not only to produce but also to install. It is crystal clear that it is quite cheaper than closed cell spray foam and also, it has less thickness when compared to the closed cell spray foam. The density of materials used in closed cell spray foam makes it more expensive, plus, it requires experience and expertise to install. In a place where the climatic conditions are relatively balanced, the cost effectiveness of the open-cell spray foam makes it the choice option.

Thickness and R Value
As a result of the low quality materials used in the making of the open cell spray foam, it therefore suggests that it is going to be less compact. The thickness of the closed-cell spray foam ensures it has more durability, strength and many more advantages than the open-cell spray foam when quality issues are put into consideration. The higher R Value of the closed-cell spray foam also means that it has better heat efficiency than the open cell spray foam counterpart. The R Value is the measure of insulation strength of a material. However, the softness of the open-cell spray foam means it has a better sound dampness than the closed-cell spray foam which is made of rigid and denser materials.

Climatic Preferences
Due to climatic conditions, each of this two spray foam insulation methods has its own place of preference. The high moisture and conditions of the cold climates means that the thickness, R value and density of the materials of the closed-cell spray foam gives it the upper hand while the open-cell spray foam insulation has an edge in areas with warm climates.
Other areas where the differences between the two are crystal clear exists. For example, open-cell spray foam insulation, although good for wall and ceiling insulation, are not meant for any exterior use such as roofing unlike the closed-cell spray foam insulation that can be used for both interior and exterior purposes.
Due to the relative advantage of the closed-cell spray foam insulation in strength and density, it can reject bulk water, therefore, it makes it more suitable for use in flood prone areas. In a limited space, the closed-cell spray foam offers a higher R Value than the open-cell spray foam. Furthermore, the open-cell spray foam insulation unlike the closed-cell allows bi-directional drying. The differences of the two under different conditions must be put into consideration before a choice is made.