The six pages below describe the system in very fine detail and are meant to be read in order.
Understanding Your Traditional Double-Hung Window
Common Construction and Dimensions
Your existing traditional double-hung wooden window units probably looks very similar to the illustration on the right, if you...
Key Elements - Fin Pile Carriers and Jamb Liners
and Jamb Liners
Two of the primary elements of the entire system are the "Jamb Liners"...
The Hardest Place to Seal - Meeting Rails
The Meeting Rails are the hardest place in the whole window to seal properly. Most traditional windows merely...
Top and Bottom Rails - Compression Seals and Flats
Vinyl Covered Bulb Seals for Compression Applications
Sill Treatment and Jamb Liners
Sill Wrap and Bottom Bulb Seal Retainer
These components work together...
Sash Balancing Options
Extant Ropes and Pulleys
Balancing your windows is important if you intend...