I am renovating my basement and the walls right now are 2 X 4 walls. I want to insulate the walls and was told to use R20 which is 6 inches thick I believe. Now I do have the room for the insulation and the foundation wall. Here is my problem. I don't know if I should go with the 6 inch stuff or the less thicker stuff. The 6 inch stuffis barely touching the concrete wall. The foundation is dry and doesn;t leak. I was told that I need a few inches between the insulation and the concrete wall for maximum efficiency of th einsulation. Any comments??!!??
- posted
18 years ago