FensterWandVerhältnis

FensterWandVerhältnis, which translates to "window-to-wall ratio," is a key metric in architectural design and building performance analysis. It quantifies the proportion of a building's exterior wall area that is occupied by windows. This ratio is typically expressed as a percentage or a decimal.

The FensterWandVerhältnis has significant implications for a building's energy efficiency, natural daylighting, and thermal comfort. A higher ratio generally allows more natural light into a space, potentially reducing the need for artificial lighting. However, it can also lead to increased heat gain in the summer and heat loss in the winter, impacting heating and cooling loads. Conversely, a lower ratio can improve thermal performance by reducing unwanted heat transfer but may require more artificial lighting and can limit views and connection to the outdoors.

Architects and designers consider the FensterWandVerhältnis carefully during the design process, balancing aesthetic considerations with functional requirements. Factors such as climate, building orientation, window U-values, and solar heat gain coefficients are all taken into account when determining an optimal FensterWandVerhältnis for a specific project. Building codes and energy standards often set limits or guidelines related to this ratio to ensure a minimum level of energy performance and occupant comfort.