Bear Creek Dome Insulation
We are using the Natural Spaces Domes Super-Wal construction with very thick walls which we filled with insulation. For the Bear Creek Dome we chose to use 18″ thick walls based on our needs here in Minnesota. In colder climates you may want the thicker Natural Spaces Domes Super-Wal. In warmer climates a 15″ wall might be more appropriate. There are other climate related issues and Natural Spaces Domes will help you decide what is best for your “neck of the woods.”
While we have test spots in the dome where we are using cotton and wool insulation, we decided to use fiber glass insulation for the rest of the dome. The use of Knauf Brand insulation for health safety has improved because the formaldehyde is no longer used in its productions. Also fiber glass is made from recycled glass so it has that benefit to the environment. We would suggest wearing a mask as you work with any insulation product. Inhalation of foreignproducts into your lungs is not good no matter what it is. That includes the installation of all insulation products.
Obviously, insulation keeps your home warmer in the winter and cooler in the summer thereby creating less need for energy. The “R” value of our Bear Creek Dome is 55. Investment in good insulating systems will provide you with great costs savings over the years. The cost of heating and cooling a Natural Spaces Dome is approximately 1/3 to 1/5 the cost of a conventional home of the same size.