R-value

• Energy Saving

  Deep Energy Cuts for a Fresh Start

  The homeowner gains a finished, insulated basement, a healthy house, and an estimated energy savings of a whopping 81%.
• Insulation

  Insulation Overview

  Insulation is needed in warm climates to keep the heat outside and in cold climates to keep the heat inside.
• Insulation

  How Insulation Works

  An insulation\'s resistance to heat flow is measured or rated in terms of its thermal resistance or R-value.
• Building Materials

  Choosing Healthy Building Materials

  A guide to specifications for healthy construction.