Replacement Window Terminology Explained

Aug 10, 2024glass-101

Understanding The Common Terms Around
Replacement Windows In Salisbury, MD

From Sashes To Panes And Everything
In Between


When you need replacement windows in Salisbury, MD, it can be exciting. Finally, it’s time to swap out those shabby, damaged old windows for gorgeous new ones!

But with all the excitement comes some confusion, especially if you’ve never replaced your home’s windows before. For most homeowners, your windows are just windows – they open and close, and you cover them with blinds or drapes for privacy.

When you start researching replacement windows and see so many new terms, such as “sash” and “glazing,” it’s easy to get confused. And don’t even get us started on all the complicated terminology around energy efficiency!

We at GoGlass have developed this helpful guide to help property owners throughout the Delmarva Peninsula understand the common terminology surrounding their new replacement windows.


Why Is It So Important To Understand
Replacement Window Terminology?

Knowledge is power. This adage is also true for your replacement windows. Understanding the basic terminology surrounding them can help you decide which windows are best for you and your home.

For example, if you have small children or pets in your home, knowing which latches to choose to prevent the windows from being accidentally opened is essential.

You’ll also better understand window styles to choose something that matches your home’s aesthetic. Do you know the difference between bow and bay windows and which will work best in your home?

They’re your windows, after all – it’s essential to know everything you can about them to make the best decision! GoGlass is here for you every step of the way.


Replacement Window Terms To Know

Don’t let yourself be caught in the dark about your windows. The more you know about replacement windows, the more you can decide on the best ones for your home.

Single-Paned Window

Also called “single glazing,” a single-paned window has a single pane of glass. Most modern windows no longer use single panes because they lack insulation and security.

Double-Paned Window

The most common type of window, double-pane windows, have two panes of glass, usually separated by a gas fill for the best insulation.

Triple-Paned Window

While less common than double-paned windows, triple-paned windows have three panes of glass. They provide superior insulation and are usually best for homes in colder climates, allowing the home to retain as much heat as possible during winter.

Gas Fills

This term describes the gas sandwiched between the panes of glass in a window. The gas, usually argon, insulates the window and prevents heat transference.

Frame

The frame is composed of the jambs, header, and sill. The frame is usually hidden behind the casing when you stand in front of the window.

Casing

Contrary to popular belief, a window’s casing is not the frame. The casing is the material you see at the window’s perimeter when you stand in front of the window.

Sash

This common term refers to the frame holding the window pane. Depending on the window type, the window may have one or two sashes that move.

Sill

The window sill sticks out from the bottom of the frame. Like the header, it provides structure and support to the window.

Single-Hung Window

Single-hung windows have one sash, either the upper or lower, that moves to open the window. They’re a popular option and usually more affordable than double-hung windows.

Double-Hung Window

Double-hung windows have upper and lower sashes that slide open. They are versatile and easy to clean, which is why they are such a popular option.

Fixed-Frame Windows

These windows don’t open and have stationary panes of glass. For example, a picture window is designed to let in light without opening.

Header

The header is the beam located at the very top of the window casing. It is wider than the frame and supports the window.

Weather Stripping

Weatherstripping is the flexible material that covers the top and bottom parts of the sash. It keeps air and water from seeping through the window and into the home.

Bow Windows

Windows that stick out in a gentle curve from the side of the house are usually made of fixed-frame or casement windows.

Bay Windows

Windows that stick out more prominently from the house than bow windows. They’re usually angled at about 45 degrees from the side of the house.

Awning Windows

Awning windows swing outward on a hinge from the frame. They are different than casement windows, which swing outward on a hinge at the side.


Energy Efficiency Terminology

With modern replacement windows designed to be as energy-efficient as possible, it is important to familiarize yourself with some common terms to choose the best energy-efficient windows for your home.

U-Factor

The U-factor tells the property owner how well the window insulates. It measures heat transference.

R-Value

The R-value rates heat resistance, or how well the window holds heat inside the home.

Visible Transmittance (VT)

VT measures how much light transfers through the window.

Air Leakage (AL)

The AL measures how much air leaks through the window.

Solar Heat Gain Coefficient

The solar heat gain coefficient measures how much solar energy is transferred through the window.


For Energy-Efficient Replacement Windows In Salisbury,
MD, Look No Further Than GoGlass

Replacing your windows on the Delmarva Peninsula isn’t something to take lightly. When you need the very best windows to maximize your home’s energy efficiency, call GoGlass. We’ve been Salisbury, MD’s top choice for 40+ years. Contact us at (800) 746-4527 to get started!