What is the difference between E-value and R-value?
Until recently, insulation has been measured by an “R” value. The R-value measures the resistance of a product to conductive heat (a smaller part of heat transfer in a home), and depends on the number and size of the airspaces surrounding the radiant barrier and on the direction of the heat flow. Radiant heat is a home’s principal source of energy loss and is measured by an “E” value. Green Energy Barrier offers an E-value of .003 and acts as a barrier to radiant heat by locking it in during the winter and keeping it out during the summer; which is why it offers homeowners tremendous savings in their utility costs.
