The Evolution of Double Hung Windows

There are many types of windows that are popular for many of their uses and styles. One of the most popular window types are double hung windows. Double hung windows have been used for centuries and have made many advancements throughout the years.

History of Double Hung Windows

Although double hung windows are extremely popular in the United States, they were invented long before the United States existed. Double hung windows were the traditional windows of the U.K., but were brought to the U.S. during colonization. Double hung windows contain two sashes that overlap and can move up and down in the window frame. Counterweights held in boxes on either side of the window were used to support the sashes. Double hung windows are an efficient type of windows because both the top and bottom sashes move. Many older buildings in warmer climates contain double hung windows because they were easy to clean and allowed airflow. Opening both the top and bottom sashes by equal amounts allows warm air to escape through the top which pulls in cool air from outside through the bottom.

Double Hung Windows Today

Double hung windows are still one of the most popular windows on the market. Today, they are used mainly for their looks rather than their efficiency. Most double hung windows use spring balances to support the sashes. Double hung windows also come in different features, such as easy-tilt and comfort-tilt, and different materials such as vinyl, wood, fiberglass, or aluminum.

Sun’s Double Hung Windows

Sun offers several styles of double hung windows, such as easy-tilt, comfort-tilt, clad architectural double hung, and replacement double hung.

SunClad™ Easy-Tilt
SunClad™ Easy-Tilt Double hung

The SunClad™ Easy-Tilt Double Hung window features a sash-over-sash design where both sashes open for ventilation and tilt-in for cleaning of the exterior glass surfaces from within the home or building. The Easy-Tilt features a rounded bull-nose profile and includes the metal tilt latch cover.

SunClad™ Comfort-Tilt
SunClad™ Comfort-Tilt double hung

The SunClad™ Comfort-Tilt Double Hung window, like our SunClad™ Easy-Tilt, features a sash-over-sash design where both sashes open for ventilation and tilt-in for cleaning of the exterior glass surfaces from within the home or building, but the comfort-tilt has a plain (flat) profile instead.

SunClad™ Architectural
SunClad™ Architectural Double Hung

The SunClad™ Architectural Double Hung is a premium wood double hung window with a powder coated extruded aluminum exterior. The CADH was designed to feature historically correct sash profiles and contains the traditional block and tackle balance system, whereas our comfort-tilt and easy-tilt contain a spring balance system.

SunClad™ Easy-Tilt Replacement
SunClad™ Easy-Tilt Replacement Double hung

The SunClad™ Easy-Tilt Replacement Double Hung window is nearly the same as the new construction version with the exception of a frame designed for replacement applications. The frame features 3-1/8” depth for insert/pocket window installation and it has an exposed jamb liner exterior face.

References Used:

https://en.wikipedia.org/wiki/Sash_window

https://web.joycefactorydirect.com/blog/bid/43606/Do-You-Know-the-History-of-Double-Hung-Windows

https://en.wikipedia.org/wiki/Window

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