There is no better home insulating material than spray foam insulation. Why? Benefits include:

>  Stops air and moisture infiltration 
>  Improves air quality by keeping dust and pollen out
>  Environmentally-friendly 
>  Reduces capacity requirements, maintenance and wear of HVAC equipment 
>  Meets all building code requirements

When spray foam is applied, it creates a barrier that holds in heat in the winter months and keeps homes cooler in the summer. It also helps keep attic temperatures from interfering with a home’s cooling or heating systems and efficiency. Expanding foam can be applied to almost any building structure including wood, steel and concrete. Foam insulation can be applied in many areas, including: below roofing, underneath floors, throughout attics, and inside crawl spaces.

The History Channel's Modern Marvels highlights the benefits of spray foam insulation in one of its episodes. See a clip below:

Additional Resources:

Customers may wonder what R-values are and why they matter in this discussion.  The United States Department of Energy's website, 
Energy Efficiency and Renewable Energy, provides helpful information about R-values, renewable energy sources, conserving energy, tax credits, and more.

Current building code requirements for insulation

Recommended R-value calculator