Most of us think of a trip to the spa as a great way to spend an afternoon. We might treat ourselves to a massage and pedicure or a new hair cut. Those are certainly fun activities that you will enjoy but a spa visit can be so much more. There are a number of spas that offer extended visits which will attempt to put you on a journey to a much happier and healthier life.
R-value is technically defined as the "thermal resistance value" of any type of insulation. Simply put, it is a measure of the resistance to heat flow when dry. The Pink Panther insulation in many attics has it's own R-value, as does the expanded polystyrene (EPS) used in the core of spa covers.