1379 Different Strategies Insulating Cathedral Flat Roofs - Insulation Energy Efficiency -

Image Text: Cross section > vented roof space > any warm, moist air that gets into the roof space is carried away by the ventilation > roof vent > roof rafter > insulation > cathedral ceiling > soffit vent > air flow > insulation > wall > cross section > Sealed roof space > since no air can escape the roof space, moist humid air from inside the house cannot be drawn into the roof space > insulation > cathedral ceiling > wall > insulation