External Shades_2019

An external shading object can be entered in a Glazed construction.
Note: both of Local shade, which defines the projections, and External shade, which defines transmittance (either constant or profiled), must be defined to complete the definition of a Title 24 shade.
 
Shading Devices

Local Shade > Projections

External Shade > Shutter

If a transmittance schedule other than ‘None’ is defined, the constant Transmittance does not apply and will be hidden.