sprayfoam

Spray foam is a type of insulation material created by mixing and reacting two chemical components. These components are typically polyol resin and isocyanate. When sprayed, the mixture expands and hardens, creating a rigid foam that insulates and seals a space. Spray foam is applied using specialized equipment that heats and mixes the chemicals, then dispenses them through a spray gun. The expanding foam fills cavities, cracks, and crevices, creating an effective air barrier.

There are two main types of spray foam insulation: open-cell and closed-cell. Open-cell foam is less dense and more flexible. It allows water vapor to pass through, which can be beneficial in certain applications to prevent moisture buildup. Closed-cell foam is denser and more rigid, offering a higher R-value per inch and acting as a vapor barrier. Its rigidity also adds structural support.

Spray foam is often used in residential and commercial construction for insulating walls, attics, crawl spaces, and basements. Its ability to create a continuous insulation layer and air seal can significantly improve energy efficiency by reducing air leakage and heat transfer. Proper installation is crucial for achieving optimal performance and avoiding potential issues. This includes ensuring adequate ventilation and protection during application due to the chemical nature of the materials.