Are R Values Additive When Adding Blown in Insulation Over
The attic was a sauna. Not a cozy, fireplace-and-hot-cocoa sauna, but a sweat-dripping, ‘I-think-I’m-going-to-pass-out’ sauna. My energy bills were mirroring the temperature, way too high. I’d heard whispers about adding more insulation, specifically blown-in stuff, on top of what I already had. It seemed like a no-brainer, right? Just pile it on and watch the … Read more