Our paper is focus on translucence of daylight through micro-glass-bubbles. We applied Glass Micro-Bubbles like outside thermal insulation on cargo container and researched their influence on quantity of Daylight in interior. In the roof of cargo container is linear skylight and its outside surface was coated of this innovative glass material. We use simple mono-cellular hollow spherical elements, known as the - Glass Micro- Bubbles. They are made of borosilicate glass which is resistant to water and is chemically stable. For this research were chosen two identical cargo containers with linear roof skylight. Our input variables were - thin (2mm) external coating layer of Glass Micro-Bubbles. Glass Micro-Bubbles were completely applied into the whole external surface of one of the container - including a roof skylight. Therefore, it was possible to measure translucence of daylight through the 2 mm layer of Glass Micro Bubbles on these two samples (containers). Our main question is: It is possible to use this innovative material - Glass Micro-Bubbles like outside thermal insulation in order to improve thermal and technical parameters and fundamentally do not worsen daylighting parameters of indoor environment?