Installed insulated glass, but it’s still hot in summer? It’s not a quality problem—it’s the type you chose

The performance gap between members of the family is huge. Here's how to tell which insulated glass actually matches your climate, your window orientation and your daylight needs.

Still hot in summer with insulated glass installed? It's not a quality problem—it's the type you chose. Compare solar-control, Low-E and gas-filled glass, plus warm-edge spacers, to match the right IGU to your climate and window orientation.

More information

Details

Lianfengzhen, Liancheng County, Longyan, Fujian, China, 366299

FUJIAN SUPERTECH ADVANCED MATERIAL CO.,LTD.

Associated Trend items

Insulated Glass vs. Vacuum Glazing: They Both Look Like Two Panes of Glass—So Why Do They Perform So Differently?

Two panes, two tracks. Heat paths, long-term stability, coating dependence, system design—here's how to tell which one your project actually needs.

They look like the same two panes of glass—so why does vacuum glazing outperform? It's not better materials; it's fewer heat-transfer paths. This comparison covers four real-world differences: three heat paths in insulated glass vs. two in vacuum, long-term stability that doesn't fade by year five, the far higher stakes of Low-E coating quality in vacuum glazing, and the...

More information

You Chose the Glass Carefully, but the Whole Window Still Feels Different—The Problem Is the Part You Overlooked

The glass isn't the problem—the frame is. Whole-window U-value ≠ glass U-value, and the 20–30% of area you ignore can raise it more than you'd think.

Aluminum conducts heat roughly 940× faster than PVC—and it's hiding in most window frames. Even with premium glazing, a highly conductive frame creates a thermal bridge that turns the edge of your window into a cold zone in winter and a hot zone in summer. This guide covers frame-material thermal conductivity, thermally broken aluminum's real limits, and why whole-window...

More information

With the AC on, why is it still hot by the window? — The heat isn’t being blocked; you just can’t see where it’s getting in

Radiant heat passes straight through ordinary glass — invisible, silent, and working against your AC all day. See how vacuum glazing stops it at the window.

AC on but still hot by the window? Heat enters glass in two unseen ways—solar short-wave radiation and temperature-difference transfer. See the U-value, SC/g and LSG metrics that matter, and how SuperVIG® vacuum glass blocks both.

More information

Products associated

thermal insulation

VIG TECHN

Compare

Remove all

Compare up to 10 products