A new gallery is being built and requires shading elements to protect the light-sensitive artwork...

Comprehensive and Detailed Explanation From Exact Extract:

For shading design on west facades:

Height of the wall (A): Determines the scale and proportion of shading devices.

Solar Heat Gain Coefficient (SHGC) of glazing (C): Influences how much solar radiation passes through windows.

Spacing and depth of vertical louvers (D): Controls shading effectiveness against low-angle afternoon sun.

Low-E glazing (E) helps but is glazing performance, not shading design.

Annual temperature (B) is climatic but less directly relevant.

Adjacent building heights (F) influence shading from surroundings but are secondary.