A woman sitting on a couch reading a book. Behind her is a white sliding window.

Resource Article

Get to Know Gliding Windows

Key takeaways from this article:

  • Sliding (gliding) windows can offer large, unobstructed views and strong ventilation, especially when designed to open from both sides.
  • Renewal by Andersen highlights a dual monorail frame and advanced weather sealing design that help reduce air and water infiltration while improving energy efficiency.
  • Key benefits include smooth operation, easy cleaning with removable sashes, and durable construction that supports larger window sizes without sacrificing performance.

In some parts of the country, gliding windows (also called sliding windows) have gotten a bad reputation. Which probably isn’t surprising considering how some brands design their windows…it’s almost as if they took a double-hung window, turned it on its side, and called it a “sliding window.”

This setup makes sliding windows hard to operate and clean (and hard to KEEP clean—especially the tracks), plus they are more likely to leak, leading to drafts and poor energy efficiency.

But for all of you who love the sleek, modern look and wide expanse of glass you get from a sliding/gliding window…take heart—not all of them are made the same!

You know the old saying, "you don't know what you don't know"? Well, we think that everyone should get to know the advantages of sliding windows, because the company you choose for your replacement windows matters. Check out these seven ways that Renewal by Andersen® Acclaim™ sliding windows are unique, and we think you’ll be all in!

A large black dog sitting on a furry run in a living room looking outside through a white sliding window.

1. Dual Monorail Frame

Next time you look at a sliding window, notice how the sash sits in the frame. Most of the time in sliding windows, the sash sits on the sill (the bottom of the frame) on a gray piece of weatherstrip that runs along the length of the sill. That means it can accumulate grit, dust, and debris, and get otherwise filthy, and it can also wear out over time, letting in air and water.

Renewal by Andersen’s sliding window does away with the fuzzy weatherstripping located on the frame, and instead moves it to the sash. The weatherstrip being in the sash means it’s easier to keep clean/undamaged, it’s out of sight, and it provides a better seal.

Our sliding window design uses a continuous monorail frame that has a ridge that runs around the entire perimeter of the frame in one continuous loop. There is one loop for each sash. This means that the sash and weatherstripping envelop this monorail along the top, bottom, and side of the sash, minimizing air and water infiltration in a superior way...all while allowing the sash to glide easily.

The Acclaim® sliding window also includes patent-pending water-management technology featuring a sill design that directs water out quickly and efficiently keeping the elements away.

2. Quality Craftsmanship and Durable Design

Have you ever noticed how fine handmade furniture, cabinetry, or other quality-built items or structures have a unique look to the corner joints? That joining technique is called mortise-and-tenon construction.

This style of woodworking is very strong and stable—and it is, of course, beautiful.

Close up of a set of hands carving a wood corner weld for a window.
wood weld pieces

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Large sliding windows in a bedroom looking over a beautiful fall forest with a body of water in the distance.

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Gray living room with a white plush chair in front of a white sliding window.
Dining room table set for 5 in the corner of a room with a brick wall and a tan wall with black sliding windows on either wall.

5. Dual Fin Weatherstripping

As we mentioned above, our windows don’t use unsightly weatherstripping. Our weatherstripping has a low-friction sheath over a foam core. It sits out of sight whether your window is open or closed. It closes in on that monorail system on contact for great energy efficiency, easy cleaning, and superior aesthetics.

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Tan living room with a wood floor and a green couch situated next to a large white sliding window.

See Acclaim® sliding windows in real homes

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