News Newsletter Real estate market reports archive Bulletins and real estate insider tips Ginesta in the media Glossary Illusions Real estate market reports Teilen Drucken K-value All A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All A B C D E F G H I J K L M N O P Q R S T U V W X Y Z The thermal insulation coefficient is a measure for assessing the insulating properties of building components. The lower the coefficient, the better the insulation property. Today, we generally refer to the U-value.