Dont Get Hung Up: Understanding Single- and Double-Hung Windows
A couple of the most common window frame types are single-hung and double-hung. While these two historically popular frame styles offer many similarities, understanding how they have different uses can go a long way toward helping you determine which one is the best fit for your house.
What Does Single- or Double-Hung Mean?
Many homeowners hear “single- or double-hung window” and mix up these window styles with single- and double-pane glass windows. Adding to the confusion, single-hung and double-hung windows both feature an upper and lower sash. It’s a similar design structure that makes the two window types look similar from the outside.
However, the two are different. “Hung” is a window term that applies to the number of operable window sashes. On a single-hung window, only the lower sash moves. Double-hung windows, however, allow movement in both the upper and lower sashes. Because of that, homeowners may find that one window style works better for their needs and budgets better than the other, even though they look similar.
Some reasons to choose a single-hung window
An enduring style, single-hung windows have been the standard window selection used in newer home builds, apartment buildings and commercial spaces. Single-hung windows are both a cost-effective choice for a replacement window, and one that continues to be appealing in homes all around the country.
Since the upper sash is immovable on single-hung windows, installing a single-hung window can also make construction work less complicated, since there are fewer moving parts.
Single-hung windows are a great selection for homeowners who want:
- A cost-effective choice for multiple windows
- A traditional, historic look
- A worry-free option for first-floor window replacement or in homes where windows are close to the ground
Some reasons to choose a double-hung window
The adjustable second sash on a double-hung window creates more flexibility for homes.
For example, tilt-in (also called tilt-out) design allows reaching the outside of double-hung windows from inside the house. On single-hung windows, the lower sash usually moves only vertically, getting in the way of the upper sash. This can create problems when cleaning the glass on single-hung windows. In some cases, that hassle can become dangerous when cleaning the outside of the upper sash from inside.
Reaching the outside of windows at ground level is one thing but reaching an upper-level window can be an entirely different case. While a few single-hung windows have a tilt-in, or removable lower sash, the moveable second sash on double-hung windows brings much easier cleaning, especially for windows on upper floors.
Allowing for multiple sashes to be opened makes double-hung windows a smart choice for rooms that need increased ventilation. With hot, damp air in the bathroom, for example, less ventilation can create issues with humidity and moisture. Left alone, that lack of fresh air can mean increased odor issues and even mildew growth. Opening each of the sashes of a double-hung window can help cool off warm, humid areas and keep moisture out of your house.
Double-hung windows also offer a unique option to single-hung windows when dealing with window maintenance. Since it doesn’t move, repairing the upper sash on a single-hung window requires a visit from a glass repairman. However, since many double-hung windows feature a removable upper sash, homeowners can swap out their window sash without the inconvenience of waiting for a glass repair job.
For these reasons, double-hung windows are a good choice for homes that:
- Have multiple stories
- Deal with fresh air issues
- Highlight an architectural style that traditionally requires double-hung windows in their look, such as Colonial, Cape Cod, Craftsman or Victorian homes
|Single-Hung Windows||Double-Hung Windows|
|# of Operable Sashes||1||2|
|Cleaning||Difficult to clean the exterior of the top sash since it does not tilt in. Tougher to clean for those living on an upper floor.||Easier to clean since both windows can be tilted to wash inside and outside surfaces. Both sashes can be cleaned from the inside of the house.|
|Ventilation||Bottom sash can open to let air in.||Both sashes can open to let cool, fresh air in through the bottom and release warm air through the top.|
|Style||Similar design options||Similar design options|
A number of features and options factor into determining the final cost of replacing your home windows. Everything from the material and added features to your region of the country and style of window can determine] the ultimate price.
Historically, single-hung windows have had the image of being less expensive (and, as a result, often more popular) due to their continual use in new home construction. However, the long-term benefits of choosing double-hung windows should be acknowledged.
While some impacts, such as lower mildew levels from increased ventilation and architectural style can be quantified over time, it’s difficult to put a price on the convenience of flexible cleaning options and additional safety for children that come with double-hung windows.
Here are some of the elements that can impact just how much you spend on your window replacement:
- Features and options
- Number of windows needed
- Location of home
While DIY may seem like a way to save money, consider working with a Pella® professional to help identify the window that best meets your needs, design and budget. They’ll not only help you find the right window, but provide you with the proper know-how to get your new windows installed properly.
Call or stop by your local Pella Windows and Doors showroom or contact us online to set up a free, no-cost, in-home consultation to discuss how you can get started on your window replacement project.