The glass that
controls the sun
Sunlight can make a home feel bright and welcoming. But when too much solar heat enters through the windows, rooms can quickly become uncomfortable.
Guardian Sun™ 35 glass has solar control properties designed to help reduce the amount of solar heat entering your home through the windows in summer. Unlike some solar protection solutions that may block sunlight, it helps manage solar heat while still allowing plenty of natural daylight and clear views.
It also helps retain warmth indoors during colder months for all year-round-comfort.
The image shown are for illustration purposes only and may not be an exact representation of the product
Proven comfort
through independent testing
An independent study has shown that glazing using Guardian Sun 35 glass can help reduce indoor temperatures on hot summer days compared to standard thermal insulation glazing. By combining solar control and thermal insulation in one glazing solution, Guardian Sun 35 helps create a comfortable home environment throughout the year.
Stay cool
in summer
• Reduces the amount of solar heat entering through the window
• Keeps rooms more comfortable on warm days
Enjoy natural
light and views
• Allows high levels of natural daylight
• Helps maintain clear views by reducing the need to close blinds
Save energy
in the home
• Helps reduce or even avoid the need for cooling in some cases
• Helps reduce heating demand in winter
• Less need for artificial lighting
Keep warmth
inside in winter
• Provides insulation to help keep warmth inside your home during colder periods
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Guardian Sun Packages
Upgrade your windows with additional features
Guardian Sun 35 can be combined with other glass solutions to add performance to your windows. Depending on your needs, it can help enhance safety, reduce the risk of forced entry, reduce outside noise, reflections on the glass or exterior condensation, help birds see the window, and more.
We have developed the Guardian Sun packages, which group different glazing options together, to help you choose the right window glass easily based on your needs. Discover the different Guardian Sun packages and how they can help enhance comfort in your home.
How Guardian Sun 35 glass works
Guardian Sun 35 glass includes a special coating designed to manage how heat and light pass through the glass. The coating allows around 70% of natural daylight to enter while blocking around 65% of the solar heat.
- Guardian Sun 35
Glass designed to perform for your windows
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| Guardian Sun 35 Double Glazed Solution | Keep cool in summer | Keep warm in winter | Reduce noise | Glazing Composition (90% Argon) |
|---|---|---|---|---|
| Solar Factor (%) | Thermal Insulation (W/m2K) | Sound Reduction Index (dB) | ||
| Comfort Package | 35 | 1.0 | 30 | 4-16-4 * |
| + Advanced Package: Safety & Security | 35 | 1.0 | 36 | 4-16-33.2 * |
| + Advanced Package: Safety, Security & Acoustic | 35 | 1.0 | 38 | 4-16-33.SR † |
| Standard Solution Comparison | 64 | 1.1 | 30 | 4-16-4 * |
| Guardian Sun 35 Triple Glazed Solution | Keep cool in summer | Keep warm in winter | Reduce noise | Glazing Composition (90% Argon) |
|---|---|---|---|---|
| Solar Factor (%) | Thermal Insulation (W/m2K) | Sound Reduction Index (dB) | ||
| Comfort Package | 33 | 0.5 | 32 | 4-16-4-16-4 ‡ |
| + Advanced Package: Safety & Security | 33 | 0.5 | 39 | 4-16-4-16-33.2 ‡ |
| + Advanced Package: Safety, Security & Acoustic | 33 | 0.5 | 42 | 4-16-4-16-33.SR ‡ |
| Standard Solution Comparison | 53 | 0.6 | 32 | 4-16-4-16-4 § |
Table Definitions
Solar Factor: The level of solar radiation (heat) entering the home.
Thermal Insulation: How much the glass insulates. The lower the value the higher the insulation.
Sound Reduction Index: The higher the value the better the sound insulation.
Certified according to EN ISO 10140-2
Coating Surfaces
* #2 Guardian Sun 35
† #3 Premium2
‡ #2 Guardian Sun 35 & #5 Premium2
§ #2 & #5 Premium2
