Single Hung vs. Double Hung Window Efficiency | Brennan
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Single Hung vs. Double Hung Windows Comparison

Choosing windows for your house can seem like a complicated process since there are quite a few decisions you will have to make during the process. There are many factors to consider when choosing windows for your home.

Choosing between getting single-hung or double-hung windows is a common question homeowners consider when looking to replace their windows.

In this post, we'll be highlighting the differences between double-hung vs single-hung windows.

We'll cover the following topics:

Use the links below to jump ahead

Our overview of these window types will help you determine what is the best option for your home.

An overview of single-hung and double-hung windows

Before we begin comparing single-hung and double-hung windows, let's quickly review what they are.

Double-hung windows

Similar to a single-hung window, double-hung windows also go by the name double-sash windows. However, instead of only having one operable sash, both window sashes in a double-hung window can slide up and down. 

Single-hung windows

Single-hung windows are the most common windows in homes.

Single-hung windows can also be called single-sash windows. The sash of a window is the part that holds the glass in place. In a single-hung window, only one of the window's sashes can move.

Typically it is the lower sash that is operable while the upper sash is fixed in place. That means that the bottom portion of the window is the only one that can slide up and down on its sidetracks. 

Single-hung windows are more affordable than double-hung windows

Single-hung windows are often priced lower in comparison to double-hung windows. Although there is a small price difference between the two, it's usually not high enough to be a deterrent if you do prefer a double-hung window.

Another thing to consider is that the materials of windows influence prices. Opting for vinyl single-hung windows is a great way to save money if that is the priority in your replacement windows project.

Double-hung windows have improved ventilation

The primary difference in how these two windows function in the home has to do with ventilation. Since only the bottom sash can open in a single-hung window, it can only ventilate the room through its lower half.

A double-hung window with both of the sashes partially open has the capacity to ventilate through both of the spaces. The windows will overlap and you still won't be able to open the entire window portal. However, having this gap actually ends up working in favor of ventilation.  

Single-hung windows are more energy efficient than double-hung windows

One of the most significant factors people consider is how energy-efficient the windows will be.

 

Single-hung windows can be more energy-efficient than double-hung windows, depending on a few factors. As single-hung windows only have one sash that moves with the other being sealed, it tends to offer more energy efficiency.

On the other hand, double-hung windows that are older or poorly made often have upper sashes that don't entirely stay in place.

Since heat rises, the heat will primarily try to escape out of the top portion of the window. That leaves the bottom part open for cool air to flow inside more easily. This can result in drafts, which will lead to cooled air entering and escaping your home. 

There are double-hung windows that offer better energy efficiency, but often these are more expensive than their single-hung counterparts. Also, if you don't securely close the top sash, even energy-efficient windows can run up your energy bills.  

Pros and cons of single-hung windows 

There are certainly pros and cons that can come from choosing to install single-hung windows in your house.

Pros 

Single-hung windows have several pros that make them an attractive option for many building a new home or replacing their old windows.

  • they are cheaper than double-hung windows

  • less expensive to install as they are

  • easier to install.

  • more energy-efficient thanks to having only one sash that opens.

  • Single-hung windows are more secure as there is only one sash to close and lock

Cons 

  • They are often more challenging to maintain than double-hung windows. 

  • In addition, they are harder to clean, especially on higher floors, as you'll have to use a ladder to reach them to clean the exterior of the panes.

  • there are not as many options available for them compared to double-hung windows. 

Pros and cons of double-hung windows 

Some pros and cons come from using double-hung windows in your home, as well.

Pros 

Several pros make homeowners choose double-hung windows.

  • They tilt in, which makes it easier to clean.

  • They also offer more ventilation since both the top and bottom panels move. 

  • have better circulation when you open both the top and bottom, which is beneficial, especially in damp rooms.

  • These windows can also be a safer option for families with young children and pets, as only opening the top panel can help to prevent falls. 

  • Also, there are many options when it comes to double-hung windows.

Cons

  • They are often more expensive than single-hung windows. If you want them to be more energy-efficient, it can add to the price tag.

  • Gravity can cause your upper sash to come down, which leads to your window not being secure from a safety standpoint and also increase your heating and cooling bills.

  • Single-hung windows are believed to be more energy-efficient than double-hung.

The bottom line is that you'll want to weigh the pros and cons of each type of hung window to determine which is going to be the best option for your new home or remodeling project.

When should I choose single-hung windows?

  • Single-hung windows are better suited to lower floors since they typically require less ventilation since heat rises to the upper floors.

  • It is also easier to clean single-hung windows when you can stand on the ground or patio to clean them from the outside.

  • If you want to absolutely maximize your home's energy efficiency, you should choose a single-hung window. Since they have fewer moving parts, they can be slightly more efficient than double-hung.

  • Choose single-hung windows if you want a more affordable option when buying replacement windows.

When should I choose double-hung windows?

  • Choose double-hung windows if you want to maximize ventilation on the upper floors of your home.

  • Double-hung windows tend to be easier to clean since they often have tilt latches that allow you to open the bottom and top sashes from inside your home.

Our recommendation

No project is ever the same. So, there is no definite answer to whether a double or single-hung window option would be better for your home.

Single-hung and double-hung windows are both great options for most homeowners. However, there are significant differences in the way they operate and other differences based on their layout. Generally speaking, single-hung windows are more affordable while double-hung windows offer more options in style.

If you are still undecided on whether to go with single-hung or double-hung, it is worth talking to your local window and door experts.

Located in North Texas? Schedule a free consultation with one of our consultants to learn more.

Brennan
Brennan
Published
September 10, 2020
Updated
January 17, 2023

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