GLOSSARY-O

Obscure glass

(Vision-proof glass) - Any textured glass (frosted, etched, fluted, ground, etc.) used for privacy, light diffusion, or decorative effects.

Operable window

Window which can be opened for ventilation.

Operator

A metal arm and gear which allows for easy operation or closing of projecting windows.

Orientation

The placement of a room, window, door, or building with respect to sun, wind, earth, access, or view (also see: Solar orientation).

Outside glazing

Glazing installed from the outside.

Outswing

A term used on doors that swing to the outside or exterior of the home. It is viewed from the outside for hinging.