The Diminishing Return of Insulation

Insulation and R-value go together like hard work and sweat.  R-value is, of course, the resistance to heat flow.  We’ve been taught to think more is better, which is true to a point.  I’m changing the insulation in the wall of my home from R-7, originally installed in 1952, to R-15, and I’m excited to see how much more comfortable my home becomes.  There is an argument that at a certain level, more insulation will cost dollars to save pennies.    At what point do we reach diminishing returns?

Continue reading “The Diminishing Return of Insulation”