A wildland-urban interface area is, “that geographical area where structures and other human development meets or intermingles with wildland or vegetative fuels.” Approximately a third of all housing units in the United States are located within an area that meets this definition.

Modular building concepts—also known as off-site construction—have been utilized for decades. However, the use of pre-fabrication and modular building techniques is increasingly common now. 

Passive fire protection is an essential aspect of gypsum construction. Gypsum firewalls of various types (shaft walls, simple partitions, etc.) prevent fire from spreading without relying on mechanical means of control, such as sprinkling.