Window Sashes Explained

Published January 3, 2022
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Lake Washington Windows

If you’re like most homeowners, you may not know too much about the sash in windows. In fact, you may only know that they play a role in keeping your home’s windows sealed and secure. Sash windows are common in the window industry and they exist on the following kinds of modern window:

  • Wood windows
  • Single hung windows
  • Casement window
  • Single hung window
  • PVC window frames
  • Picture window
  • Replacement windows
  • Vinyl windows
  • Pella windows
  • Aluminum windows

But what exactly is a sash window, and what do they do? This post will explain everything you need to know about your sash windows, including what they are made of, how they work, and why they are important.

How Do Window Sashes Work?

A sash is typically made of wood, vinyl, or aluminum. They are fitted into the window frame and secured in place with screws, hinges, or other mechanisms. This critical component is the part of the window that moves and keeps the glass in place. Most sashes can be opened and closed to allow for ventilation, regardless of applications like living room windows or bathroom windows. This is an important feature, especially in the summer time, when you want to let in air but not let in the sun’s rays.

When Should I Consider Replacing My Window Sash?

If your window sash is bent, damaged, or it won’t open and close properly, then you should consider replacing it. You may notice that the glass in some windows is hard to open. This can be due to one of two things: either the window sash itself has become warped over time, or the window frame has become warped and is preventing the sash from opening and closing properly.

In either case, it’s important to replace the window sash as soon as possible to avoid further damage to your window and your home. In many cases you may need to replace the entire window, to ensure the integrity of the seals, frame, glass, and security. Consider getting a quote for window replacement by a certified and reputable company. To keep your window sashes operating smoothly and efficiently, regular maintenance such as cleaning and inspection for damage is essential. For homeowners experiencing specific issues with Milgard windows, our detailed guide on how to troubleshoot and solve common Milgard window problems offers practical advice and solutions.

Replacing A Double Hung Window Sash

Replacing your sash in double hung windows can be a DIY project even though it may be more wise to hire a professional window installation company to ensure the job is completed right the first time. If you damage your glazing bars during a DIY project, you may need a new window. Here are some of the steps to follow :

  1. Begin by removing the interior stops with a pry bar. Remove the outer stops in the same way, using the flat side of the prying tool. Pry firmly but carefully so you don’t damage or break your window frame.
  2. Next, remove the sash cord and pulleys. This can be done by unscrewing the screws that hold them in place.
  3. Remove the sash from the window frame. You may need to use a pry bar to loosen it from the frame.
  4. Replace your old window sash with a new one.
  5. Finally, secure your sash in place by installing the cords and pulleys, replacing the stops, and sealing around the window with caulk.

Window Sash Maintenance

To keep your sash window in good condition, you should perform regular maintenance tasks such as cleaning, painting, and repairing. Cleaning your sash is important to ensure that they function well and look their best. You can clean them with a simple solution of water and vinegar. Be sure to rinse them thoroughly afterwards. If you notice any scratches or chips, you should paint your sash to keep them looking good and prevent further damage. You can use a latex exterior paint that is compatible with vinyl siding and trim.

What Is The Difference Between An Upper Sash And A Lower Window Sash?

The upper sash is the window sash that is located at the top of the window. The lower sash is the one at the bottom. Most windows have an upper and a lower sash, but there are some exceptions. Some older windows, for example, have only one sash. If you have casement windows for example, there is only one sash. Some newer windows have two sashes that move independently of each other. This type of window is called a double-hung window. Your sashes are an important part of your home’s windows and should be maintained regularly to ensure their proper function and aesthetics. By understanding their design and functionality, you can be better prepared to repair or replace them when necessary.

Why Are Window Sashes Important?

Your top sash and bottom sash are one of the most important parts of a window. They are responsible for holding the window glass in place, and they also play a role in the overall aesthetic of the window. Window sashes also play an important role in the insulation and waterproofing of your home. By keeping the window glass in place, they prevent air and water infiltration, which can help keep your home warm in the winter and cool in the summer. For more window tips, or to replace your entire window, call Lake Washington Windows and Doors. These professional window replacement specialists will help you with the following:

  • Determine sash weight
  • Choosing between vinyl sashes
  • Window design
  • Enhanced airflow
  • Exceptional detail
  • Air leaks
  • New windows
  • Two sash replacement
  • Energy efficiency
  • New construction window install
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Written by Lake Washington Windows

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