Open Vs Closed Cell Foam Insulation: Choosing The Right One For The Job

Spray foam insulation is widely accepted by homeowners and contractors as one of the most beneficial options available when it comes to residential insulation. Unfortunately, while settling on the use of foam insulation is an easy choice for many people to make, choosing between open and closed cell foam can often be a far more difficult decision. While some people believe that closed cell insulation is the superior option, others swear by the use of open cell foam. The truth however, often lies somewhere in between these two opinions. This is because choosing the superior type of insulation will often depend on the job at hand.

Primary Objective: Creating A Vapor Barrier

If the primary objective of your insulating job is to create a vapor barrier that prevents moisture from invading the insulated materials, the use of closed cell foam will prove to be the superior option. This is because closed cell foam creates a solid surface that is both airtight and waterproof. Consequently, even the smallest amount of water cannot be absorbed by the foam or allowed to pass through the foam. The use of this feature is especially beneficial when insulating pipes and exterior walls.

Primary Objective: Absorbing Sound

If the primary objective of your insulating job is to create a soundproof barrier or to deaden outdoor noises, the use of open cell spray foam will be you best option. This is because the small air pockets that are found in each cell allow this insulation to absorb noise far better than closed cell foam. As a result, this insulation is especially beneficial when used in homes that are located near mass transit, such as a railroad or airport. This foam can also be quite beneficial when insulating a single interior room, such as a music room.

Primary Objective: Long Term Insulation

If the primary objective of your insulating job is to install insulation that is able to last several years without any substantial loss in volume, closed cell foam will be the right choice for the job. While open cell foam will often settle at a rather quick rate as the air pockets inside the foam begin to collapse, closed cell foam will settle at a much slower rate. Consequently, closed cell foam will always provide the longer lasting solution to your insulation needs.

In Conclusion

Both open and closed cell foam can be extremely beneficial when used appropriately. In order to determine which of these options is truly best suited to your particular needs, be sure to consult a qualified contractor from a company like Energy Home Insulation Inc to discuss both options before moving forward with your insulation job.


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