Dachbodendecke dämmen: Efficient Attic Ceiling Insulation for Energy Savings Dachbodendecke dämmen (attic ceiling insulation) is one of the most cost-effective ways to reduce heat loss in a building. When the attic is not used as living space, insulating the top floor ceiling prevents warm air from escaping through the roof. This simple measure can significantly lower heating costs while improving indoor comfort throughout the home. https://sites.google.com/view/dachbodendecke-dammen-efficie/home