Summary:
In this complete guide to window sashes, find out what they are, how their built, and why they are important to window energy efficiency.
Okay, first things first: What is the difference between a window sash and a replacement window? The sash is a crucial part of every window. It’s the part of the window that has the glass – whether is a picture window, sliding window or single-hung window they all have sashes.
A replacement window is a completely new window unit including a new frame and a new sash.
Is The Sash Important?
Yes, sashes are important because that is where most of the Energy Star ratings come from. They are the largest area of any window. Now, frames are also important for window energy efficiency but, let’s talk about the sash and why how they are built are critical.
Your guide to window sashes? There are three main components of every sash:
Frame: All window sashes will have a frame. Square and rectangular windows have 4 pieces of framing, regardless of material and manufacturer, they will be joined at the corners. Vinyl, fiberglass and composite frames are welded at the corners and aluminum is usually bolted in the corners. Round and geometric windows use different techniques.
Glass: Windows have glass…that’s kind of the point of having windows! Double-pane windows will have two sheets of glass (we mostly recommend and use Cardinal 366 glass) which has be treated and coated with Low-E coatings to improve resistance to heat and UV light. Triple-pane will have three panes of glass.
Spacer: All multi-pane windows need to have space in between the glass panes for insulating factor. Glass is separated by what is called the spacer and can be made of rubber or composite material, or a combination of aluminum and rubber. The spacer not only separates the glass but seals in into what is called the “insulated glass unit” (IGU). The space is filled with either air (lower end) or an inert gas like argon or krypton for improved insulation.
By combining these processes and components, manufacturers create vinyl window sashes that are durable, energy-efficient, and aesthetically pleasing. Watch our complete guide to window sashes in this video.
Complete Guide to Window Sashes: Anatomy Of A Window-Explained
Frequently Asked Questions
Q: How do I remove a sash?
A: This depends on the window style. Sliding window sashes can be removed by partially opening the windows and lifting the window out of the “stool” (bottom rail) then removing it. Hung windows with tilting sashes can be raised and released to tilt in and then finding the releases on the sides to remove. Each window style has a different method.
Q: Does Houston Window Experts repair sashes?
A: First, call us to see if your window is under warranty. Even if we did not sell and install your windows, we may be able to help. If you have a broken glass pane, we can refer you to a glass shop who can remove and rebuild the IGU (the insulated glass unit) from the frame and repair it. Our complete guide to window sashes helps you understand how to remove them and how to get them serviced.
Q: Can a broken sash be replaced?
A: Usually on one side or edge of a sash will have a label with a serial number. The manufacturer can help replace the sash and sometimes, a reputable glass shop can repair the sash by asking the manufacturer for the specifications.
Who Do You Go To For Free, No-Pressure Advice?
There is a reason we chose Window Experts and part of our name! We are very demanding of and use great discretion when choosing who works for us, how they do their jobs, and the manufacturers we work with. We call it our 3 P’s…Best People, Best Products, and Best Processes.
Call us to discover the difference our approach to replacement windows really is second to none!
