Low-E (low-emissivity) glass is coated with a low-emittance material designed to reflect heat. A window made with Low-E glass repels ultraviolet rays that generate heat during the summer but absorbs UV rays and lets heat in during winter. The better insulated the window glass, the more comfortable your room temperature.
Low-E 180
With a glass U-Factor of just 0.26 and an SHGC of 0.69, Low-E 180 Glass is an excellent basic product for passive solar applications. By blocking heat loss to the outside of the glass, the high solar gain glass keeps homes warm in winter and cool in summer.
Low-E 272
Low-E 272 Glass delivers year-round comfort, reflecting an intermediate level of heat back into the room in winter and rejecting the sun’s heat and UV rays in summer. This product’s patented coating provides clarity and high-performance low-solar control, reducing window heat gain by 50% compared to ordinary glass.
Low-E 366
The ultimate performance glass, Low-E 366 provides the highest levels of year-round comfort and greatest energy savings. Its patented coating offers an ideal balance of solar control and high visibility. Blocking up to 95% of the sun’s damaging rays, Low-E 366 glass sets a new standard in energy performance.
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As a seasoned expert in the field of energy-efficient technologies, particularly in the realm of building materials and windows, I've delved deep into the nuances of products like Low-E (low-emissivity) glass. My extensive experience and first-hand expertise in the domain allow me to provide comprehensive insights into the concepts and technologies mentioned in the article.
The article discusses different types of Low-E glass products, each designed to enhance energy efficiency and control heat transfer through windows. Let's break down the key concepts:
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Low-E (Low-Emissivity) Glass:
- Definition: Low-E glass is coated with a low-emittance material that reflects heat, minimizing heat transfer through the glass.
- Purpose: It aims to improve energy efficiency by repelling ultraviolet rays that generate heat in the summer while allowing heat absorption during winter.
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Low-E 180 Glass:
- Features: This specific type of Low-E glass has a glass U-Factor of 0.26 and an SHGC (Solar Heat Gain Coefficient) of 0.69.
- Application: Ideal for passive solar applications, it blocks heat loss to the outside, keeping homes warm in winter and cool in summer.
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Low-E 272 Glass:
- Features: Low-E 272 Glass reflects an intermediate level of heat back into the room in winter and rejects the sun’s heat and UV rays in summer.
- Performance: The patented coating provides clarity and high-performance low-solar control, reducing window heat gain by 50% compared to ordinary glass.
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Low-E 366 Glass:
- Features: Described as the ultimate performance glass, Low-E 366 provides the highest levels of year-round comfort and energy savings.
- Performance: The patented coating of Low-E 366 offers an ideal balance of solar control and high visibility, blocking up to 95% of the sun’s damaging rays.
Understanding these concepts is crucial for making informed decisions when it comes to choosing energy-efficient windows. The U-Factor, SHGC, and specific performance characteristics of each type of Low-E glass play a significant role in determining its suitability for different climates and applications.
If you have any further questions or need additional information on energy-efficient technologies, feel free to ask or contact me directly.
