1341 Reducing Attic Heat with Ventilation - Insulation Energy Efficiency - Venting Roofs -

Image Text: Cross section > No ventilation > 100 degrees Fahrenheit > roof rafter > 130 degrees Fahrenheit > insulation > ceiling joist > 95 degrees Fahrenheit > wall > Ventilated > 100 degrees Fahrenheit > roof vent > roof rafter > air flow > 105 degrees Fahrenheit > insulation > ceiling joist > 80 degrees Fahrenheit > wall > soffit vent