What is a common requirement for the installation of spray foam insulation?

The requirement for spray foam insulation to be applied in above-freezing temperatures is critical for several reasons. First, the chemical reactions that allow the foam to expand and cure effectively rely on proper temperature conditions. When applied in cold environments, the foam may not expand correctly or may fail to cure properly, leading to reduced effectiveness as an insulator and potential issues with adhesion to surfaces.

Applying spray foam insulation in above-freezing temperatures ensures that it adheres well to the substrates and achieves the intended insulation properties. This aspect is crucial for maintaining energy efficiency and preventing moisture-related problems in the insulation.

While there are considerations regarding application times and environments, such as the requirement for good ventilation, the primary factor impacting performance and safety is the temperature during application. This ensures both the integrity and efficiency of the insulation system being installed.