Foam board insulation is rigid and lightweight ... home also depends on your geographic location. Review this Energy Star R-value chart to learn the estimated R-value for your area.

This Class A motorhome is built upon a Ford F-53 chassis and can handle a total of 26,000 lbs while being built with ...

And the bigger the temperature difference between indoors and outdoors, the more this lowers actual insulation performance. Foam-based insulations, by contrast, don’t allow convective air ...