Single/Double Hung Windows
Single Hung windows are windows that have a single sash that moves vertically and is counterbalanced by a balancing system. They have a second sash that does not move called a deadlight.
Double Hung windows are like single hung windows, but both sashes move and have their own sets of balancers.
This page will inform you on the types of shoes, what can go wrong with them and how to identify a broken shoe.