The Evolution from Cast Stone to GFRC to Insulated GFRC



Cast stone is known to have existed in various forms since as early as 1138 in France. In all cultures, since man began building structures, natural stones were used

as the time-tested material of choice. However, the weight of cast stone has traditionally made it very difficult and expensive to attach to buildings.


The Colosseum, Rome, Italy
Completed in 70 A.D.
Building Material: Natural Limestone






Created in Russia during the 1940s, GFRC (Glass Fiber Reinforced Concrete) was engineered to mimic precast concrete and cast stone.  To eliminate the cost of integral frames, GFRC shells were often produced to be mechanically fastened to a field-built frame with screws.  Since GFRC is commonly manufactured unfinished and then painted in the field, the appearance of an aesthetic limestone finish is often lost or compromised.










In the early 2000s, Insulated GFRC was created and engineered by Georgia Precast Solutions. Our proven product eliminates the need

for steel framing and attachment through the finished face. Insulated GFRC weighs, on average, 15-20 percent of cast stone and precast

concrete, eliminating the need for expensive steel and equipment for installation.


Jackson Healthcare, Alpharetta, GA
Completed in 2018
Building Material: Insulated GFRC


Patent Pending



GFRC Insulated Brick System








Available in a Wide Variety of Colors and Textures


Test MethodMatrix Property TestsAgeAverage Test Results
ASTM C109Compressive Strength (psi)28 days6.600
ASTM C1583Tensite Bond (psi)28 days20 (100% Substrate Failure)
ASTM C666Freeze/ Thaw Durability
(Relative Dynamic Modulas, %)
300 Cycles100
ASTM C666 per C1364 - all sides saw cut to ex-pose aggregateFreeze/Thaw Durability
(CPWL, %)
300 Cycles0


Test MethodBrick Pull-Out TestsAgeAvg Bond Strength (psi)
ASTM C 1583Brick to Matrix Bond28 Days181
ASTM C 1583Foam to Matrix Bond28 Days20

GFRC Insulated Brick System Details


GFRC Insulated Brick System – Encompassing the best of past and current technology

  • Pre-grouted Insulated brick panel
  • Standard R-16 @ 4” Insulation with Modular Brick Panels which
    eliminates attachment of 2” rigid insulation board
  • Panels applied directly over water-borne weather barrier
  • Lightweight – 10 to 12 pounds per square foot
  • Brick Panels are considered 75 year product (.01% degradation in
    300 cycle freeze/thaw test)
  • Faster installation requires less equipment and manpower
  • All connections are engineered and stamped
  • Eliminates costly heavy gauge metal attachments

















GFRC Insulated Brick System and Panels


Georgia Precast Solutions’ Insulated Modular Brick System is an addition to our wide range of GFRC insulated wall cladding systems. Brick panels are manufactured in a climate-controlled factory, ensuring consistent quality, and replace the old method of installing masonry, one brick at a time.









The Installation Method

Panels are installed using adhesive and mechanical attachments. Installation times are significantly faster than traditional brick, requiring a fraction of the field labor. The adhesive is applied to the back of the panel, and positioned on the  building per engineered shop drawings. Once the panel is positioned it is mechanically attached and clipped back to the structure.  At certain levels of the building, normally at floor lines, a J-track mechanical attachment method is used to carry the weight of the panel. The brick panels will be positioned on a spacer (placed at both horizontal/vertical joints) to control the joint size and maintain uniformity.


Insulated Flat Panel and Brick System

  • Brick and flat panels have an insulated value of R-16 @ 4” thickness
  • Panel size is 2’ x 4’ x 4”
  • Panels will have an integrated color; pre-finished or smooth grey and painted onsite


Brick and straight panel system


Brick and running bond system