Is Spray Foam Insulation Better Than Fiberglass for Buses?

Benefits of Spray Foam Insulation for School Bus Conversions

Spray foam insulation is a popular choice among skoolie converters due to its excellent thermal performance and long lifespan. It expands to fill gaps and crevices, providing a tight seal that prevents air leaks and reduces heat transfer. According to the US Department of Energy, spray foam insulation can achieve R-values (thermal resistance) of up to R-6.5 per inch, compared to R-3.5 per inch for fiberglass batts. This means that a 1-inch thick layer of spray foam can provide the same insulation as a 3-inch thick layer of fiberglass.

Installation Considerations for Spray Foam Insulation in Buses

When installing spray foam insulation in a school bus conversion, it’s essential to prepare the surface properly. This includes cleaning the area to remove dirt and debris, and applying a coat of primer to ensure the foam adheres evenly. It’s also crucial to use the correct type of spray foam, such as open-cell foam, which is more compressible and suitable for bus conversions. A standard 10-gallon tank of spray foam can cover approximately 1,000 square feet, so plan accordingly to ensure adequate coverage.