What does the term "coating" refer to in glazing?

The term "coating" in glazing refers specifically to a layer applied to glass that enhances its thermal or visual performance. This can include various treatments that improve energy efficiency by reflecting or absorbing heat, reducing glare, or controlling light transmission. Coatings are vital for optimizing the performance of windows and other glazing installations, contributing to energy savings and occupant comfort by managing solar energy and heat loss.

The other choices do not accurately reflect the definition of "coating." For example, a method of glass installation pertains to how the glass is positioned or secured in place, while the type of glass refers to its composition and characteristics, such as tempered or laminated. A decorative feature on glass panels describes aesthetic embellishments rather than functional enhancements. Thus, the correct understanding of "coating" aligns closely with its role in improving the functional attributes of the glass.