A well-insulated home can improve its value as well as improve the comfort of your home, reduce damage and dramatically reduce your energy bills. In the midst of all the kinds of insulation available, spray foam insulation is one of the most efficient. If you’re not sure the concept behind spray foam insulation is or looking to learn more about this insulation material we’ve put together an extensive guide that provides you with the details you require. From the way in which the material is put in place to the numerous benefits it can provide Here’s what you need to be aware of regarding spray foam insulation.


Let’s begin with the fundamentals. Before getting into the details about spray foam insulation you must know what exactly it is. The spray foam insulation isn’t the typical insulation material. It’s made up of two distinct chemicals which are polyol resin and an isocyanate-like form. When these two chemicals mix and react, it creates reactions that produce the foam which grows when sprayed onto the surface. The expansion of the foam form the perfect shape for even the most difficult-to-access or unusually shaped regions.

After being sprayed with spray foam spray foam rapidly hardens in just a few seconds and creates the airtight sealing. When it is hardened it will ensure that spray foam insulation will never lose its shape or R-value. spray foam insulation will never change shape or the R-value.

The two main types of SPRAY FOAM INSULATION

The two primary kinds of spray foam insulation: closed-cell spray foam insulation and open-cell spray foam insulation. Each kind of insulation has its own advantages that we’ll discuss in the following paragraphs.

Closed cell spray foam insulation

Appropriately named, closed-cell insulation is composed of cells that are closed and press-fit to block air as well as moisture entering the foam. It has a dense density and turns into an extremely hard material after it is sprayed.

The advantages from closed-cell spray foam insulation

  • High R-value Closing-cell spray foam insulation has one of the highest values of R in all insulation materials. With an R-value of 7 for every centimeter, closed-cell spray foam insulation can be used as an extremely efficient insulating agent.
  • Long life: Once put in place, closed-cell spray foam insulation is a highly efficient insulator over a long period of time without losing its form or R-value with time.
  • Water barrier Open-cell insulation can also stop moisture from entering a house and creating mold or water damage. growth. However, closed-cell insulation can also act as protection against large quantities of water. This can prevent the destruction of your house in the event of a leak or flood.
  • Pest Barrier: Since pests do not consume the material, closed-cell spray insulation offers the solid protection against unwanted visitors.
  • Strengthened structural strength Due to the sturdy composition and the high density that is present in closed-cell spray foam insulation, it improves the durability of walls within your home and improves the structural integrity of your home. In this way, the installation of closed-cell spray foam insulation will aid in preventing damages caused by extreme weather, such as severe snowfall or powerful winds and rain.

The open-cell spray foam insulation

The open-cell spray foam insulation is composed of cells that aren’t fully sealed. Instead, they’re deliberately left uninhibited. After being sprayed, open-cell spray foam insulation is cured into a soft and spongier form, and it is less dense that closed-cell spray foam insulation.

The benefits that come from the Open cell spray foam insulation

  • It expands to fill in cracks: Some types that comprise open-cell spray foam insulation could increase 100 times their initial sizes. Therefore, open-cell insulation is perfect to fill small cracks and difficult-to-access areas in which air typically escapes.
  • Flexible: Open-cell spray foam insulation stays soft and flexible after it is hardened. This allows for a snug and solid installation in difficult-to-access areas.
  • Blocks sound open-cell spray foam insulation acts as an absorber of sound material and is an effective form of insulation in the reduction of airborne as well as flanking (sound that is carried by walls, for example, the plumbing) noise.


For a quick answer to this question Yes. Installing spray foam insulation correctly is extremely complex and requires specialist equipment, making it difficult even for the most experienced DIYer. In the event that it’s installed incorrectly, the insulation is incorrectly installed it could be dangerous chemical off-gassing may be observed, leading to health problems like respiratory issues, an increase in the chance of developing cancer, as well as nasal, and eye irritation to the skin. Additionally, improperly installed insulation isn’t able to effectively insulate your home, or stop the growth of mold, which can cause discomfort, inefficient use of energy, and damage to the home.

To minimize the risks It is essential to employ an experienced spray foam insulation contractor if you plan for installing spray foam insulation in your home. Below, we’ll provide some ideas of the things you can anticipate during the process of installation.


When done by a professional contractor When done by a professional contractor, the installation of spray foam insulation is quite easy. The contractor will begin by providing an in-depth description of the task. After that, they’ll make preparations for the application site by increasing the ventilation and removing any sources that could ignite. Once they’ve prepared the location the contractor will put on the required protective equipment and then prepare spray foam insulation. spray foam insulation is to be applied. It is typically heated and mixed on the spot.

The contractor will employ specially designed tools for spray the foam on the areas they want. When they’re spraying the foam access to the area is restricted to those wearing appropriate safety equipment. After the application procedure is completed the contractor will tidy the area and eliminate any unwanted materials. If at minimum 24 hours have passed since you submitted your application is submitted, you may go back to the application website, unless told to do so.

If you’re thinking of building spray foam insulation on your commercial or residential property, ArmorThane will be happy to assist. We’re known as the most dependable spray foam insulation company in the Chicago region along with our crew of licensed and skilled contractors are held to the highest standards of professionalism. No matter how big or small, we’ll make sure that the insulation is installed correctly and efficiently, so you will be able to enjoy the numerous advantages which spray foam insulation offers to provide for years to come.

When installing spray foam insulation in Chicago the team at ArmorThane can’t be beaten. For a no-cost estimate, call us now.

The most important component that provides the structure of your home is the walls. In the wood frame construction roof, shingles roof and shingles, the standing rainwater and that is the mass of roof snow, shingles add weight to the roof on the wood frame that results in a compressive force that is applied to the walls due to the downward force. The lateral forces that are imposed upon the exterior walls of homes result from the high winds and gusts generated by storms. A “shearing force” could be created by the lateral forces which distort the walls. To withstand the rigors of these loads and forces walls in a home are required by the building codes to be built in a specific way. However, walls are not always constructed in accordance with the minimum standards, and so the sound of shaking and creaking caused by movements or strong winds is often heard. To ensure the strength of the studs and the external wall, sheathing greater density closed-cell spray foam is recommended because it is able to adhere to both. It will result in less wall movement caused by winds, vibrations, and occupant activities due to the additional rigidity closed-cell spray foam give. “Racking incidents” like hurricanes or high wind conditions can be avoided by using closed-cell SPF since walls have more resistance than that required by the building code. Building structural strength to the structure is another advantage of the SPF application. SPF-filled walls can increase from 75 to 200 percent in racking strength to walls constructed of vinyl siding or gypsum boards, light gauge metal or OSB plywood NAHB Research has demonstrated.

Racking Test

A wall may change its initial rectangle shape to an oblong shape due to shearing forces. Engineers usually employ”racking tests” or “racking test” to test the wall’s resistance to shear forces caused by wind load. To test this it is necessary to construct a model wall that measures 8 feet. by 8 feet. is put into a massive frame following the construction. Then the vertical (lateral) strength is applied to one part of the wall while the base is fixed by the frame. The force increases till the wall structure is destroyed, and the same 400 pounds. increments being added throughout the test.

The Strength Added Effect by Spraying Foam In To The Walls

Walls that had spray-applied polyurethane foam insulation or ones without were tested in an array of testing with racking. The tests aimed to evaluate two external facing materials:

  1. Plywood-textured siding
  2. 15-lb. building paper that has vinyl siding over it.

The inside of the wall panels utilized 16-inch stud spacing and was covered with half-inch sheetrock. The stud cavities of wall panels were insulated using spray-applied polyurethane foam and filled 1.5 Lb/ft3 foam density.

The walls of the studs that were coated with spray-applied polyurethane foam provide substantial strength to the walls of your home as shown in the graph. It is evident that the foam filling walls weakened less with every load applied in addition the walls had more resistance.

The application of spray polyurethane foam insulation has been as compared to conventional fiberglass batts in another set of rack tests. These wall panels were covered with drywall on both sides in one of the tests, and in another, the wall panels were covered with the drywall side on one and OSB (oriented string board) on the other side in another. In the end, the median foam density was 2.26 lb/ft3 . The wall panel was constructed using steel studs, spaced 24 inches in the center in both cases.

The graph shows it is true that spray foam insulates wall system was stronger. strength.

  1. Test results are reported in “Testing and Adoption of Spray Polyurethane Foam for Wood Frame Building Construction” (May 25, 1992) prepared by NAHB Research Center for The Society of the Plastics Industry/Polyurethane Foam Contractors Division.
  2. Test results are published in a letter written by Bob Dewey, Mechanical Engineer, NAHB Research Center to Mason Knowles, The Society of the Plastics Industry/Spray Polyurethane Foam Division (November 18 in 1996).

Spray foam is one of a kind insulation and sealing material. It is applied on site so that it can be molded to the surface on which it’s applied. The application process creates a tight building envelope, which increases efficiency in energy use.

Spray foam insulation and insulation foam sealants are produced by mixing and resolving distinct liquid components. The liquids are extremely reactive when mixed, and applied on the spot, expanding when they come into contact to form foam that insulates and closes gaps, and may create the air as well as moisture and barriers to vapors. Spray foam is flexible and can be used to create a barrier to wall cavities and exterior walls, as well as attics, crawlspaces as well as small cracks and gaps within a home. Spray foam products are able to limit air through filtration as well as air circulation within the home which reduces the use of energy, reduces the entry of allergens and pollutants, and also makes your home more comfortable.

The different spray foam type and methods of the application provide distinct advantages. The three primary kinds of spray foam that can be utilized to provide insulation as well as other uses:


3 lbs./cubic Ft. A closed-cell foam

R-Values start at 5.5 per inch*

A lot of times, they are used for exterior or roofing applications


2 lbs./cubic Ft. A closed-cell foam

R-Values start at 5.7 per inch*

Commonly used to provide continuous insulation for internal wall cavity filling and non-vented attic insulation applications


0.5 lbs./cubic feet. an open-cell foam

R-Values start at 3.6 per inch*

Commonly employed for the interior wall cavity filling as well as non-ventilated attic applications

*R stands for resistance in the direction of heat flow. The greater the value of R more powerful the insulating power. Request your dealer for the fact sheet about R-value.

Find out more on spray foam R-values here.


Builders typically opt for the high-density spray foam when high insulation values and strength are required. As its name suggests, this foam is denser than other kinds made of spray foam. The spray foam is often an ideal option for roofing or other types of exterior insulation due to its seamless, monolithic structure. High-density spray foam will also decrease energy bills significantly throughout the life of a roof because of it’s heat resistance properties. It also provides increased protection against air and water infiltration and enhances the structure to the extent it is applied. The bonds that spray foam form to the roof will increase the construction’s resistance toward wind uplift which helps to minimize the damage caused by high winds.


Medium-density foam comes applied as lower high-pressure 2-component spray foam. Medium-density foam provides specific benefits based on the climate as well as the kind of structure in the area it is utilized. Similar to low-density foam medium-density SPF, medium-density is typically utilized to provide continuous insulation and interior wall cavity filling and attic fill that is not vented. But, medium-density is closed-cell spray foam; it is commonly used in situations where there is a requirement for the most R-value insulation per square inch. Medium-density foam serves as air or vapor barrier, as well as a water barrier and can also help to in reducing the noise.

Medium-density foam can also offer large tensile as well as bond strength. It may also offer low vapor permanence and is generally not affected by moisture like storms driven by winds.


Also known as open-cell-foam low-density spray foam is a spray-applied to provide continuous insulation and air-sealing barrier. Low-density SPF can also be referred to as 1/2 pounds foam because it weighs approximately 0.5 pounds. for every cubic foot. The open cell structure of the foam provides some flexibility to foam.

The low-density foam is applied as high or low-pressure 2-component polyurethane spray foam. Low-density spray foam is applied to walls, unventilated attics, to ceilings and ducts, and in vented crawl spaces. It is referred to for its role as an air barrier, however, it is permeable to moisture and vapor. It is frequently used to fill in cavities in walls when they are being constructed.

Due to its large cell structure, Low-density foam remains more flexible and soft following the curing process.. Its low-density spray foam offers thermal insulation and also seals airflow cracks joints, seams and joints by filling in the gaps. Additionally, the foam is able to absorb sound because of its soft texture and open cell structure.