What is the major advantage of icynene foam over polyurethane foam?

The major advantage of icynene foam over polyurethane foam lies in its application method and the unique properties it possesses. Icynene foam is designed to be sprayed into cavities where it expands to fill gaps, creating a continuous air barrier and a seal against air leaks. This characteristic allows for better insulation and reduces air infiltration, which is critical in energy efficiency.

The option that states it can be poured instead of sprayed is misleading, as icynene is typically sprayed for optimal performance. However, the application method of icynene foam contributes significantly to its advantages as insulation, making it easier to cover complex areas effectively.

Icynene also holds substantial merit in terms of its overall performance, such as its ability to expand upon application and its resultant flexibility that can accommodate building movement. While icynene is not necessarily lighter or less expensive than polyurethane, its expansive application method provides better sealing and can enhance the thermal efficiency of a building, which is a key factor when comparing insulation materials.

In summary, the advantages of icynene foam primarily stem from its superior air sealing capabilities and thermal performance due to its method of application, making it a competitive option in construction and home improvement projects.