The U-value calculator assists you in planning the insulation of your home by providing valuable information on the necessary amount of insulation and on avoiding problems with condensing humidity. Heat demand calculator (beta)
The heat demand calculator determines the amount of heat a building (or a part of it) needs during the heating period. Enter all building components that border to outside air, ground or rooms with lower temperatures. Interior walls do not need to be considered.
Online calculators (both U-value and heat demand) are available in English, German and French.