What is a rolling/sliding window?
A sliding, or rolling window consists of at least two sashes in a side by side (2-lite) configuration. Depending on the model of the window one sash may be stationary while the other sash opens by sliding horizontally or both sashes may open horizontally. In a 3-lite configuration there are three sashes, one stationary center sash with two outer sashes which operate horizontally to allow for ventilation.