What is The Best Type of Spray Foam Insulation in 2022?


Spray foam insulation is indeed a type of spray plastic that can be used on roofs, corners, walls, and curved surfaces as insulation as well as an air-sealing barrier. It’s formed by combining various liquid components, which react and swiftly form a foam. The spray foam gun is the best so far, regarding spray foam insulation.

Spray Foam Insulation: What Are the Different Types of Spray Foam?

Open cell and closed cell are the two primary types.

  • Open cell insulation is less expensive and can be an excellent air barrier, but this does not function as a water vapour barrier. It’s usually used for interior insulation, but it also works well as a sound barrier.
  • Closed cell foam insulation is more dense and compact, and it can also operate as a water vapour barrier. It may be utilised both inside and outside because of its design (including roofs).

When analyzing open cell versus closed cell spray foam, there are two major considerations to keep in mind. The first one is the foam’s physical composition. It’s either open-cell foam, which means the foam’s microscopic cells aren’t totally closed, or closed-cell foam. They’re open, as air enters all of the material’s small air pockets. The foam is less water resistant as a result of this than closed-cell foam.

Closed-cell foam is made up of tiny foam cells as well, however the tiny foam cells of closed-cell foam are tightly packed together. They are filled with such a gas rather than air, which causes the foam to rise, expand, and transform into a considerably larger, denser, and entirely waterproof insulator.

Understand the difference

The structural integrity, better R-value, and capacity to fully seal air leaks & prevent water infiltration are just a few of the benefits of utilising closed-cell foam over open-cell foam. The cost of closed-cell foam is higher than open-cell foam because it includes no air and hence requires more material.

The choice of foam will also be influenced by application-specific considerations like as load capacity, vapor/water infiltration resistance, and space constraints, among others.

Benefits of Spray foam insulation

While each form of spray foam gun has its own set of benefits and drawbacks, there are certain general advantages and benefits to using this approach over fibreglass as an insulation medium.

  • A strong insulator :

SPF insulation is far more efficient than other methods of insulation because of its expansive nature, which efficiently seals all nooks & crevices. You may rest assured that you will not be revealed if you use it.

  • Savings on energy :

It enables the property & house owner to save greatly on their energy expenditures high efficiency as just an insulator. In comparison to other technologies that save about 30% on average on energy bills, SPF insulation is reported to save 50% or more on energy expenditures.

  • A completely airtight seal:

Air leaks are the big contributor to higher energy expenses. SPF, on the other hand, takes better care of this than any other approach. They can easily patch any gaps in even the smallest and darkest of areas. Its airtight barrier is so effective that studies show it is 24 times lower permeable to air filtration than every type of insulation.

  • Barrier against moisture :

Any gaps or cracks in the walls or elsewhere allow not only air and also moisture as well as water to enter the home. It is crucial to keep those at bay because of their known ability to cause harm. Because it is insoluble in water, this SPF not just to protect the attic & crawl space from moisture and leaks, and that it does not absorb water & water like some other materials in the event of floods. This water resistance benefits and protects every living space.

Mold is deterred by SPF, which is made up of inert polymers that prevent all possible sources of food for mould or bacteria. As a result, no mould or mildew can grow, and the house is protected from it. The closed-cell SP outperforms the open-cell SPF in this trait.


Spray foam is a good choice for every homeowner, regardless of their geographic location, because it improves the stability of houses insulated with the technology.