Be it a school, a hospital, a manufacturing facility, data center, or any other commercial facility, a building’s energy efficiency is one of its most important characteristics. An efficient building can help cut energy costs, contribute to owner sustainability goals, enhance occupancy comfort, and more.

In 2025, there are plenty of ways to enhance building efficiency, from energy-efficient lighting to modern HVAC technology to rooftop solar panels and beyond. But one of the simplest and most effective can be the installation of spray polyurethane foam insulation, a strategy that can enable a facility to remain efficient and comfortable no matter the elements outside. 

In fact, spray foam insulation can help contribute to a more resilient and healthier building envelope in a variety of ways, delivering enhanced value and helping your operations avoid downtime, lost production, expensive maintenance repairs, safety issues and other concerns—especially when installed by qualified professionals.

How? Let’s explore the most effective target areas for spray foam insulation, the benefits your organization can achieve following installation, and how to identify the right spray foam products and services for your business needs. 

Identifying Target Areas for Spray Foam

To derive the greatest value out of an investment in spray foam insulation, it’s important to recognize the most important target areas within your facility that can benefit the most from the material. 

Consider the entire building envelope, including:

• Walls
• Roofs and attic spaces
• Basements and crawl spaces
• Windows, doors, and other fenestrations

Spray foam insulation is particularly effective throughout these areas, helping to improve thermal performance and minimizing air leakage. Gaps around windows, doors, and other openings can also be targeted with spray foam sealants (which are distinct from insulation products, as noted later in the article) to further prevent drafts and leaks.

While visual inspection can help determine areas where spray foam will be effective, more advanced diagnostic methods can be applied by trained professionals that can more comprehensively determine air leak rates and problem areas throughout the entire building envelope. 

For example: A blower door test is a common method to measure air exchanges per hour and identify common leak points. The test deploys a powerful fan that is temporarily mounted into the frame of an exterior doorway. After calibrating the device, the fan pulls air out of the building, lowering the air pressure inside. The higher outside air pressure then flows in through all unsealed openings such as gaps, cracks, or wiring penetrations. If conditions do not allow for lowering the pressure in the home, the fan may also be operated in reverse, with air pressure increased inside the home. 

Infrared cameras can also be used to inspect walls, ceilings, and floors to find specific locations where insulation is missing and air is leaking. Elsewhere, a nontoxic smoke pencil test can also be used to detect air leaks. These tests determine the air infiltration rate of the facility as well as the specific points that will most benefit from spray foam. 

When undertaking a spray foam project, there is additional opportunity to identify already-insulated areas where the materials used may require replacement. You can look for visible damage or deterioration, including cracking or shrinking, a powdery or brittle texture, or staining and discoloration that may indicate water damage. And even if existing materials pass a visual check, outdated insulation may not meet current energy codes or efficiency standards, and may merit an upgrade regardless. 

Unlocking the Benefits

Compared to other insulation types like fiberglass or cellulose, spray polyurethane foam maintains one of the highest R-values per inch. This allows it to provide industry-leading thermal resistance, thus reducing heat loss and minimizing energy costs for heating and cooling, helping to enhance the overall efficiency of any building.

But there are further benefits to be had. Spray foam insulation also works as an air and moisture barrier in the right applications. Unlike traditional insulation materials, spray foam expands to fill gaps and cracks, effectively sealing air leaks, reducing drafts and improving indoor air quality. Further, as a moisture barrier, spray foam can help prevent mold and mildew growth, which is crucial for maintaining a safe and healthy environment.

Other benefits of spray foam insulation include:

• Structural reinforcement. Spray foam insulation adheres to surfaces and hardens, adding rigidity to walls and roofs, which can improve the building’s structural integrity. 
• Noise reduction. The dense composition of spray foam insulation helps to absorb sound, reducing noise pollution from outside or between different areas within the building. This can be ideal for office buildings, apartments, and mixed-use properties where soundproofing is important.
• Longevity. Spray foam insulation is highly durable and does not sag, shrink, or deteriorate over time. If installed properly, it requires minimal maintenance, providing long-term performance and value.
• Reduced environmental impact. New sealant formulations are designed to minimize VOC emissions and use eco-friendly materials, contributing to lower carbon footprints in construction projects.

Selecting High-Performance Insulation for Your Next Project

When making an investment, it can be helpful for building owners and operators to be informed about the types of foam technologies that can be used. Within the low-pressure polyurethane foam category, there are three subcategories of foam based on application method: 

• Low-pressure spray polyurethane foam. These products are chemically cured, two-component systems designed to fill and insulate large voids and surfaces. This delivers excellent adhesion properties and creates a continuous air barrier completing the building envelope, which results in improved indoor air quality and lower heating and cooling costs.
• Low-pressure pour-in-place polyurethane foam. These products are chemically cured, two-component systems specifically designed for filling cavities, molds, fixtures or holes where a slower curing and expanding polyurethane foam is required.
• Low-pressure one-component polyurethane foam sealants and adhesives are pre-reacted in the can and undergo further reaction with ambient moisture at the time of application. One-component polyurethane foam sealants and adhesives are generally used for smaller-bead applications.

In any case, it’s important to be certain that your selection meets the criteria for its intended application. It is not uncommon to encounter spray foam products that are advertised for use as a sealant, as insulation, or both. But sealants and insulation must meet respective codes, testing requirements and specifications including U.S. building codes, FTC labeling or testing requirements, OSHA regulations for hazard reporting, and PUR product standards. Each product should also come with a safety data sheet (SDS) and technical data sheet (TDS) for proper operating procedures, product stewardship guidelines (including how to dispose of empty cannisters), and other critical information. These items should always be available from the foam supplier; if they aren’t, it may be a sign of a misleading product.  

Working with a reputable spray foam applicator should help you steer clear of any product confusion. To those ends, it can be important to check if your vendor is properly certified and trained to apply spray foam products—such due diligence can help ensure a safe and effective insulation process.

For any commercial or industrial facility, there are a number of benefits to be seized by enhancing the building envelope. Spray foam insulation is a relatively simple and unobtrusive means to do just that—and it’s worth the consideration of property owners and managers everywhere.