Fiberglass Reinforced Terra Cotta - TerraGlas

GFRC Advantages

GFRC (Glass Fiber Reinforced Concrete) GFRC is made of minerals and will not burn. In addition, the nature of Concrete acts like a thermal regulator when exposed to flame. GFRC not only will not burn, but it also protects the materials behind it from the heat of the flame.

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Installation

GFRC is relatively light in weight compared to traditional stone or terra cotta ornaments. Its installation is quick and relatively easy. GFRC can be cast to virtually any shape. We supply GFRC wall panels, GFRC columns, GFRC Bas Relief, GFRC domes, GFRC capitals, GFRC fireplace surrounds, GFRC moldings, GFRC medallions and all types of custom GFRC shapes.

Finish

GFRC is available either with a cast in integral color and texture: limestone, precast, acid wash, etc. or as paint grade that is easily finished with virtually any paint.

Every contractor uses GFRC for different reasons, such as its versatility, its durability, its ability to replicate the look of heavier and more expensive materials (like precast and stone), etc. It is frequently chosen for both decorative and functional exterior features, especially in mid- to large-scale construction.

Yet, when choosing between options, it’s helpful to also be aware of what other benefits are available. Beyond its visual and structural qualities, GFRC can have other benefits, and one such benefit is its use in building more energy efficient properties.  

While GFRC is not classified as an insulative material on its own, it can contribute to energy efficiency when used as part of a larger wall assembly or exterior system.

Thermal Properties of GFRC

GFRC is not inherently insulating. Its R-value – a measure of thermal resistance – is relatively low compared to insulation products such as foam board, mineral wool, or spray foam. On its own, GFRC will not dramatically slow heat transfer or improve a structure’s ability to retain indoor temperatures.

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However, it is often used in wall assemblies that incorporate insulation layers behind the GFRC cladding. When integrated into rainscreen systems, GFRC acts as a durable outer layer that protects the internal structure and insulation, while the insulation itself carries the thermal performance.

Where Energy Efficiency Gains May Come From

Although GFRC doesn’t provide insulation on its own, it still supports the overall performance of energy-efficient wall systems in several indirect ways:

• Thermal Protection for Insulation – GFRC can shield foam or mineral wool insulation from UV exposure and moisture, which helps preserve the R-value of those materials over time.
• Moisture and Air Barrier Compatibility – GFRC is compatible with modern barrier systems that reduce air infiltration and moisture intrusion. Reduced air leakage leads to better HVAC efficiency and indoor climate control.
• Low Thermal Mass and Thickness – Because GFRC panels are thinner and lighter than precast, they allow more flexibility in design, which can make it easier to integrate continuous insulation without significantly increasing the depth of the wall system.
• Durability and Reduced Maintenance – Energy efficiency is not only about heat transfer. Long-lasting materials that reduce replacement frequency and support envelope integrity also contribute to sustainable building goals.

GFRC is also a suitable match for high-performance design strategies, including LEED and green building codes, when it is used in conjunction with thermal insulation and weather barrier systems that meet energy code standards.

Not a Standalone Insulator, but Still Part of the System

While GFRC should not be used in place of insulation, it complements energy-efficient building practices by functioning as part of a comprehensive wall assembly. Architects and builders looking to meet energy codes or improve thermal performance can continue to use GFRC as a design element – provided that thermal resistance is addressed in the supporting wall system.

For projects requiring both visual appeal and energy efficiency, GFRC remains a viable option when paired with the appropriate materials behind the scenes. For more information about GFRC, or to start an order for our GFRC products, please reach out to GC Products LLC, today.

If you want to learn more, please visit our website GFRC Wall Panels.