Transcription of Insulation Fact Sheet - energystar.gov
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DOE/CE-0180 2008 Department of Energy Assistant Secretary Energy Efficiency and Renewable Energy Contents: Introduction Page 2 Why Insulate Your House? How Insulation Works Which Kind of Insulation is Best? Page 3 What Is an R-Value? Reading the Label Insulation Product Types Insulating a New House Page 8 Where and How Much? Air Sealing Moisture Control and Ventilation Installation Issues o Precautions o Attics o Walls Design Options o Crawlspaces and Slabs o Advanced Wall Framing o Metal Framing o Insulating Concrete Forms o Massive Walls o Structural Insulated Panels o External Insulation Finish System o Attic Ventilation or a Cathedralized Attic Adding Insulation to an Existing House Page 20 Where and How Much How Much Insulation Do I Already Have?
cellulose, polyicynene, and expanded polystyrene.) The still air is an effective insulator because it eliminates convection and has low conduction. Some foams, such as polyisocyanurate, polyurethane, and extruded polystyrene, are filled with special gases that provide additional resistance to heat flow. The ability of insulation to limit air ...
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