Final answer:
A structure with glazing in excess of 40% implies that over 40% of the building's wall area is made up of glass or transparent material, affecting energy efficiency and heating and cooling requirements.
Step-by-step explanation:
When referring to a new structure having glazing in excess of 40, it typically means that the windows or other transparent elements of the building have a glazing percentage that is more than 40% of the wall area. Glazing percentage is a term used in the field of architecture and building design to describe the proportion of the external wall that is made up of glass or transparent material. A high percentage of glazing can have implications for the building's energy efficiency, as it may increase the amount of heat that enters or leaves the building, impacting the heating and cooling requirements.
Designers and architects might use various strategies to mitigate the impacts of excessive glazing, such as using special types of glass with improved insulation properties or incorporating shading devices. Furthermore, local building codes might have specific requirements for buildings with high amounts of glazing, to ensure compliance with energy efficiency standards.