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Spray Foam Insulation Contractors You Can TRUST

CNC Spray Foam Insulation is the leading spray foam insulation company in NC for commercial spray foam and residential spray foam applications. Our reputation proceeds us in only providing the most professional spray and best quality products to suit your needs. 


CNC Spray Foam Insulation has numerous satisfied customers who can rest assured, knowing that our fully licensed and insured work will last them for years to come. 


Our Spray Polyurethane Foam Insulation is the obvious choice when looking for the best way to insulate your home or new project.


Whether it’s for residential or commercial applications, there is nothing on the market that compares, and here’s why.

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What Is Spray Foam Insulation

Spray Foam Insulation, What is it? Spray Foam Insulation is an extremely effective insulator made up of rigid plastic insulation material that contains a high R-value. Its self-adhesive properties make it a versatile and increasingly popular choice in insulation. The Spray Foam Insulation takes its form after pressurized chemicals mix while being sprayed on the exterior and interior walls, filling any cavities or hard to reach gaps of air in the framing.

Weatherization and why It’s important

If you knew that you could instantly save up to 40% on heating and cooling costs per year, would you not want to do so? With outdated insulation methods, you can have unproperly sealed cracks and gaps allowing your A/C and heat to escape your home or building. Having a properly applied Spray Foam Insulated home, you eliminate these energy wastes and make your home or building more efficient throughout the year.

Insulation Installation expertly done by our professionals can save you up to 20% in total energy expenditures per month. There are many Insulation options out there, but very few that are as effective or as efficient at filling cracks and gaps as the Spray Foam Insulation that we have to offer.

What is the Process of Installing Spray Foam Insulation?

Spray Polyurethane Foam should only be handled and applied by a professional licensed contractor. Before application, the chemicals that are used to create polyurethane foam are kept in two separate containers normally referred to as side A and side B. Once sprayed together through the nozzle of a unique Spray Foam Insulation gun the chemicals mix in an overlapping pattern and then cover the desired location. Only a technician trained in the application should handle these chemicals and the equipment used to apply them.

Generally, there are two main types of application; low pressure, and high pressure. They are both similar in their application. The main difference is the area in which it is being applied. For smaller residential insulation projects you would use low pressure (below 250 PSI). For larger project areas, such as commercial interiors and exteriors, you would use high pressure (above 250 PSI). Low-pressure application areas require less equipment. High-pressure application areas generally require more equipment like a rig attached to a truck that holds everything needed to handle the project at hand.

Since the chemicals initially start in a liquid form there is a dry time. It’s thanks to this initial liquid form that SPF is able to seep into cracks and gaps within the framing and eliminate gaps. Once it’s applied the chemicals then expand exponentially in size, eliminating any gaps. This process is not inhibited by most climate conditions, so it can be applied in every season. We can be there for you at any point in the year. Whether it’s an improperly insulated window, a leaky basement or a drafty attic, we have you covered.

The drying time of spray foam insulation can take several hours to cure. During the installation process, it is best that the residents leave the project area until the new insulation has properly cured.

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Spray Foam Insulation Benefits to Air Quality

The Spray Foam Insulations quick setting properties are designed so that it’s dry time once applied is minimal. The mixing of the liquid components causes this quick set application process during installation. This process means no harmful chemicals being off-gassed. The high resistance to black mold makes our Spray Foam Insulation an advantageous choice in any potentially damp locations, such as basements, bathrooms, and crawl spaces with exposure to humidity.


Being concerned for the environment is not necessarily a new idea, however, it is an ever-growing concern, and constantly evolving progression in the service industry. So when deciding on the right Insulation product for your residential or commercial project then Spray Polyurethane Foam is your best choice by far. By saving up to 40% of the energy being wasted while using other leading Insulation products, it’s easy to see which is the safer choice.


SPF’s ability to seal hard to reach air gaps throughout your home or business gives it the added protection that other products lack. This Benefit of proper insulation to the walls and ceilings throughout your structure will mean much less energy use, saving you, and the environment.

Enhanced Thermal Resistance With Spray Foam Insulation

When products are approved for installation in residential and commercial structures, they are given an R-Value. The R-Value is a numbered measurement of the material's ability to resist heat transfer. For the most part, the higher this number, the better the product is.

Older, more traditional insulation products do not perform as well as Spray Foam Insulation throughout their lifetimes. The reason for this is that after time these other insulation products can compress, causing them to lose the pockets of air within them. This compression reduces the R-Value of these products. Getting wet can also cause a loss in R-Value to many insulation products, but not to Spray Foam Insulation.

Open-cell spray foams generally have an average of a 3.5 R-Value, while closed-cell spray foam holds an average of 6.5. With the bonus of high moisture resistance as well as high thermal resistance, spray foam insulation is sure to perform and last the duration of your project’s lifespan.

Versatile Application

Due to Spray Foam Insulation’s liquid form and spray-on application, it is a highly versatile and easily customizable product that can be used in virtually any situation. This high versatility makes it an extremely suitable choice for homeowners and business owners as the insulation product to fit all of their needs. Spray Foam can go anywhere it’s needed. It can be applied between stud frames, basement rim joists, around windows and doors. If using for an attic it can be applied to hatches, behind attic knee walls, around wiring holes, and around HVAC ducts. Other applicable locations include, but are not limited to; Recessed lights, open exterior soffits, furnace flues, basement rim joists, and plumbing vents. Basically, anywhere you can imagine you need insulation SPF can cover it.

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How to Choose Between Open and Closed Cell Insulation

Open-cell and closed-cell polyurethane foam are essentially the same and both well suited for insulation in any structure. They both have different ways in which the bubbles form within the plastic during the chemical reaction process of the application. It is a subtle difference, however, they are designed for different applications.


When it comes to commercial installations and the exteriors of a residential installation you would most likely use closed-cell polyurethane foam (ccSPF). Insulation capabilities, low vapor permeability, and rigidity are all great benefits when applying to a commercial or exterior residential project. With a very high R-Value of 6.5 ccSPF is one of the most efficient insulators on the market. It’s durability, light-weight composition, and self-adhesive properties make ccSPF is sure to endure for decades provide proper insulation to any location it is applied.

Its high resistance to water makes it an excellent choice for any exterior project. This added resiliency stands up well to any harsh weather your structure may endure. Whether it’s pouring rain or intense winds, spray foam seals all gaps and effectively protects the structure. Once cured ccSPF forms a monolithic material that doubles as a sound dampener and increases structural stability.