In Australian commercial construction projects, a "hood" or "window hood" refers to an architectural feature designed to provide shading and protection for windows. It is typically an external element that projects outward from the building facade above a window or series of windows.

The primary purposes of a window hood include:

1. Sun Shading: Window hoods help reduce direct sunlight entering the building, which can decrease glare and heat gain, improving energy efficiency and occupant comfort.

2. Weather Protection: They offer some protection against rain and other weather elements, helping to prevent water ingress and potential damage to the window and interior spaces.

3. Aesthetic Enhancement: Window hoods can be designed to complement the architectural style of the building, adding visual interest and character to the facade.

4. Privacy: In some designs, window hoods can also provide a degree of privacy by limiting the view into the building from certain angles.

Window hoods can be constructed from various materials, including metal, wood, or composite materials, and may be integrated into the overall design of the building or added as a separate feature. Their design and implementation are often influenced by factors such as the building's orientation, local climate conditions, and specific project requirements.