Thermal Conductivity: Why is it the most important rating when it come to home renovation?

What is Thermal Conductivity? While searching the web I found many interpretation of this but, all explained it scientific terms making it so confusing. To keep it simple I will explain it in simple terms. Here it goes! Thermal conductivity is heat that transfers through material at a slow rate for example: When entering a room that has been closed for a while with no windows or doors open it won’t take long for the room to reach thermal equilibrium or equal temperature, meaning all surfaces are the same temperature. Let’s imagine the room is carpeted on one half and tiled on the other half. Stepping from the carpet to the tile would seem as though the tile is colder but, they are exactly the same temperature. It’s the heat from your feet that transfer the warmth to the cold tile floor. If standing on the tile long enough, your feet will reach equilibrium with the tile and both will be the same temperature. The heat from your ...