LOMAXWINDOWS & DOORSLow-E coatings
Low-E coatings are part of the glass package and affect how the window handles radiant heat while allowing daylight through. Ask which coating is available for the selected product and where it is intended to perform.
Choosing Window Glass for Your Home
The right glass package depends on the room, the amount of sun it receives, the daylight you want, and the insulation performance you are comparing. Pane count matters, but it is not the whole decision.
Start with the room and the sun
A west-facing room, a bedroom next to a busy street, and a shaded opening can have different priorities. Talk through heat, glare, daylight, outside noise, privacy, ventilation, and how the room is used before choosing a glass package.
In Fresno and Clovis, it is useful to identify rooms with strong afternoon sun and any openings that feel uncomfortable at particular times of day. That information gives the product and glass conversation a specific starting point.
Compare dual-pane and triple-pane glass
| Option | What changes | What to compare |
|---|---|---|
| Dual-pane | Two panes of glass with an insulated space between them. | Available Low-E coatings, Argon-filled options, frame and spacer details, ratings, daylight, and the installation plan. |
| Triple-pane | Three panes of glass with two insulating spaces. | Product-specific U-factor and SHGC, visible light, frame and sash configuration, weight, and how the selected unit fits the opening. |
Triple-pane is an option to compare, not an automatic answer for every room. The complete window, glass package, frame, and installation all contribute to the finished result.
Ask about Low-E coatings and Argon
Argon-filled glass
Argon can fill the insulated space between panes when it is offered in the selected unit. Ask how the package is specified and which performance ratings belong to the complete window.
Tint and appearance
Tint, visible light, grids, and frame color change the way an opening looks from inside and outside. Review a product sample or specification before making the final choice.
Glass and operation
Glass should be selected alongside the opening size, operating style, frame, ventilation needs, and the way the window will be used.
Read the performance ratings
ENERGY STAR explains that the NFRC label uses several performance ratings. U-factor describes the rate of heat transfer and how well the window insulates; a lower U-factor means better insulating performance. Solar Heat Gain Coefficient (SHGC) describes the fraction of solar energy transmitted; a lower SHGC means less solar heat passes through the window.
Read ENERGY STAR’s explanation of independently tested and certified window performance when you compare product labels. Visible Transmittance, Air Leakage, and Condensation Resistance can also help describe the complete unit.
Look beyond pane count
Two windows with the same pane count can still have different ratings, frames, spacer and seal systems, visible light, operation, and installation requirements. Compare the complete product specification rather than treating “dual” or “triple” as the entire answer.
For a useful comparison, put these on the same page: window style, frame, glass package, U-factor, SHGC, visible light, opening, and installation method.
Questions to ask about the glass package
- Which glass packages are available for the selected window style and size?
- What are the U-factor and SHGC ratings for the complete unit?
- How will the package handle a room with strong afternoon sun?
- What daylight, tint, grid, and appearance options should I compare?
- How do the glass, frame, and installation method work together in this opening?