Tempe Energy-Efficient Windows
Energy-Efficient Windows in Tempe, AZ
Dual-pane Low-E glass picked for the walls that take the hardest desert sun.
Tempe Energy-Efficient Windows
Dual-pane Low-E glass picked for the walls that take the hardest desert sun.
In Tempe, the window's job in summer is to keep the sun's heat out. Two ratings on the window's energy label tell you how well it does that: the U-factor and the Solar Heat Gain Coefficient (SHGC). Lower is better for both in a hot climate.
SHGC matters most here. It measures how much of the sun's heat comes through the glass, and a west-facing living room window can take direct sun for hours on a summer afternoon.
Single-pane glass passes much of that heat straight through. A dual-pane unit with a Low-E coating, often with argon gas between the panes, reflects heat while letting daylight in.
A thin metallic coating that reflects heat while keeping the view clear.
Lower SHGC for rooms that bake in the afternoon sun.
Multi-chamber vinyl or fiberglass frames that don't conduct heat like bare aluminum.
Less heat radiating off the glass, so the chair by the window is usable in July.
| Rating | What it measures | What to look for in Tempe |
|---|---|---|
| U-factor | How fast heat moves through the whole window | Lower numbers insulate better |
| SHGC | How much of the sun's heat comes through the glass | Low SHGC, especially on west and south walls |
| Visible Transmittance | How much daylight comes through | A balance so rooms don't feel dim |
| Air leakage | How much air passes through the closed window | Lower numbers keep dust and heat out |
For hot-climate homes, lower is better, especially on west- and south-facing windows. We show you the label ratings for each glass option side by side.
Some Low-E coatings have a slight tint, but most look close to clear from inside. We bring samples so you can compare.
Argon slightly improves insulation and is common in dual-pane Low-E units. It isn't required, and we list it as a separate option.
Utility programs change. We don't promise any rebate, so check SRP's or APS's current offers for your account before you buy.
Tell us which rooms get the hottest. We'll measure and show you glass options for each wall.
Free estimate, no obligation