In today’s world of energy-conscious design, the right building materials can make all the difference—not just in aesthetics, but in performance and long-term cost savings. That’s why the Energy Glass Block line from Seves, available at Quality Glass Block, is a top choice for architects, builders, and homeowners seeking both style and efficiency.
Among the various glass blocks designed for energy performance, four models in particular stand out for their exceptional U-values, solar control, and design flexibility. Whether you’re constructing a residential feature wall or designing a commercial façade, there’s an Energy Glass Block in this collection that suits your needs.
1. 1919/13 Energy Block – U-Value: 0.17
The 1919/13 Energy Block is the highest-performing unit in the Energy Glass Block family when it comes to insulation. With a U-value of just 0.17, it offers exceptional thermal resistance, making it ideal for cold climates or areas where heat retention is a priority.
This block doesn’t just meet energy code requirements—it exceeds them. The superior insulation value helps reduce heating costs and maintains more consistent indoor temperatures. It’s a smart choice for energy-efficient builds where every degree of retained heat matters.
2. Thinline Series Energy Block – U-Value: 0.19 (Size: 8x8x3)
The Thinline Series provides outstanding performance in a slim profile. With a U-value of 0.19, it delivers excellent insulation, while its 8x8x3″ dimensions make it ideal for projects that require a lightweight or space-saving design.
Despite its thinner build, the Thinline maintains the same thermal efficiency as larger blocks—making it perfect for interior partitions, bathroom windows, or accent walls where space is limited.
3. Premiere Series Energy Block – U-Value: 0.19 (Size: 8x8x4)
Functionally identical to the Thinline Series, the Premiere Series Energy Block shares the same U-value of 0.19, but comes in a slightly thicker 8x8x4″ form factor. This added depth enhances the block’s presence without compromising on energy performance.
If you love the look and feel of the Thinline but prefer a block with a bit more substance, the Premiere Series is the perfect choice.
4. Thickset 90 Energy Block – U-Value: 0.19, SHGC: 0.27
Among all the energy-efficient options, the Thickset 90 Energy Block is a standout performer. While it shares a U-value of 0.19 with other models, it excels in solar heat control, with a solar heat gain coefficient (SHGC) of just 0.27—the best in the industry.
A lower SHGC means less solar radiation is transmitted indoors, helping to keep interiors cooler in hot climates and reduce the need for air conditioning. The Thickset 90 is ideal for sun-facing walls or any space where overheating is a concern. This balance of insulation and solar control makes it one of the most effective all-around Energy Glass Block options on the market.
Why U-Value and SHGC Matter
U-value measures how well a material prevents heat from escaping, while solar heat gain coefficient (SHGC) measures how much solar heat passes through. When comparing Energy Glass Block options, you want a low U-value for insulation and a low SHGC for solar control.
The Thickset 90 strikes an ideal balance between these two metrics, offering:
- U-value: 0.19 (excellent insulation)
- SHGC: 0.27 (industry-best solar control)
This combination ensures year-round comfort—warmer in winter, cooler in summer—with reduced reliance on heating and cooling systems.
Conclusion: Choose the Right Energy Glass Block for Your Project
From the ultra-efficient 1919/13 Energy Block to the solar-savvy Thickset 90, Seves’ Energy Glass Block line at Quality Glass Block offers high-performance options for every type of build. Whether you’re prioritizing insulation, solar control, design, or a mix of all three, there’s a glass block solution ready to meet your goals.
To explore the full line of energy-efficient glass blocks, visit Quality Glass Block’s Energy Block Collection and see how style and sustainability can come together in every space.
Give us a follow!