Closed Cell Spray Foam For Metal Buildings: What You Need To Know

Closed Cell Spray Foam For Metal Buildings: What You Need To Know

Metal buildings are a popular choice for a variety of applications, including commercial spaces, warehouses, and agricultural buildings. When it comes to insulating these structures, closed cell spray foam insulation has become a go-to option. Closed cell spray foam offers numerous benefits for metal buildings, such as improved energy efficiency, moisture control, and increased structural integrity.

What Is Closed Cell Spray Foam?

Closed cell spray foam is a type of insulation that is applied as a liquid and expands into a dense foam. It is called "closed cell" because the foam's cells are tightly packed together, creating a barrier that prevents the passage of air and moisture. This results in a highly effective insulation material with excellent thermal resistance and durability.

Benefits of Closed Cell Spray Foam for Metal Buildings

Superior Insulation

Closed cell spray foam insulation has one of the highest R-values (a measure of thermal resistance) among insulation materials. This means it provides exceptional thermal insulation, keeping the interior of the metal building comfortable and reducing the need for heating and cooling.

Energy Efficiency

By effectively sealing the building envelope and minimizing air leakage, closed cell spray foam helps improve energy efficiency. It creates an airtight barrier that prevents drafts and heat loss, reducing the workload on heating and cooling systems and potentially lowering energy bills.

Moisture Control

 Metal buildings are prone to moisture-related issues such as condensation and water intrusion. Closed cell spray foam acts as a moisture barrier, preventing moisture from entering the building envelope. It helps minimize the risk of mold growth, rot, and other structural damage caused by excess moisture.

Structural Strength

Closed cell spray foam has excellent rigidity and can enhance the structural integrity of metal buildings. It can provide reinforcement to the metal panels and help prevent problems such as wall racking and shearing caused by strong winds or seismic activity.


Closed cell spray foam is widely regarded as “green.” It is because it protects against mold, generates fewer materials after use that would go into the landfill


 Metal buildings can be noisy due to echoing and vibrations. Closed cell spray foam has sound-dampening properties that help reduce noise transmission. It absorbs and muffles sound waves, creating a quieter and more comfortable interior environment.

Installation Considerations

When considering closed cell spray foam insulation for your metal building, it is important to work with a professional insulation contractor experienced in metal building applications. They will assess your building's specific needs and recommend the appropriate thickness and installation technique to achieve optimal insulation performance.

Additionally, it is crucial to ensure that the metal building is properly prepared for the installation of closed cell spray foam. The surface should be clean, free from dirt, dust, and loose debris. Any existing insulation or vapor barriers should be removed, and gaps, cracks, and joints should be sealed. Proper surface preparation ensures better adhesion and long-term performance of the spray foam insulation.

Maintenance and Longevity

Closed cell spray foam insulation is known for its long-lasting performance. Once installed, it requires minimal maintenance. However, regular inspections of the metal building's envelope are recommended to check for any signs of damage or wear. Prompt repairs can help maintain the integrity of the insulation and ensure its effectiveness over time.

The Takeaway

Closed cell spray foam insulation offers numerous benefits for metal buildings, including improved energy efficiency, moisture control, structural strength, and soundproofing. By creating an airtight and moisture-resistant barrier, it helps create a comfortable and energy-efficient interior environment.

If you are considering insulation options for your metal building, closed cell spray foam is certainly worth considering. Consult with a professional insulation contractor to assess your specific needs and ensure proper installation for optimal results. By investing in closed cell spray foam insulation, you can create a more comfortable and efficient space while protecting your investment in the long run.

It is important to note that closed cell spray foam insulation should be installed by trained professionals who have experience working with metal buildings. They will ensure that the insulation is applied correctly and evenly to maximize its benefits. Additionally, they will conduct thorough inspections and address any potential issues to ensure the longevity and performance of the insulation. Not every closed cell foam applicator has the necessary experience to apply spray foam. It is prudent not to let just anyone handle your spray foam needs.