Vent panel

Panel that moves horizontally on a sliding window or patio door.

 

Vent unit

Window that opens and closes.

 

Vivid View^® screen

Pella’s exclusive Vivid View screen material, which is practically invisible, provides a sharper view and is less noticeable from the outside.

 

Weatherstrip

Material or device used to seal the openings, gaps or cracks of venting windows and doors to minimize water and air infiltration.

 

Windload

Pressure, positive or negative, acting on an external surface of a building caused by the direct action of the wind. See also “Design pressure.”

 

 

For additional terminology, visit wdma.org