exoGIRT
Thermally Isolated FRP Z-Girt
exoGIRT is a pultruded fiber-reinforced polymer (FRP) Z-girt manufactured in the USA. It supports ventilated facade systems while reducing thermal bridging in exterior wall assemblies. With low thermal conductivity and high strength, exoGIRT improves energy performance and works with various cladding materials. Its corrosion resistance and dimensional stability in changing conditions ensure long-term durability without the thermal penalties of traditional metal Z-girts. Lightweight and installer-focused, exoGIRT supports precise alignment, panel fastening, and Passive House Certified energy performance.
Why exoGIRT?
Enables compliance with ASHRAE 90.1 continuous insulation (CI) and thermal bridging energy code requirements
Works with standard insulation boards: no routing/proprietary insulation
Standard length of 128” is ideal for horizontal applications, reducing waste and installation time
Engineered for heavy cladding at full insulation depth
Passive House Certified Component
NFPA 285 Fire Test Assembly: Passed
Made in the USA; Build America Buy America (BABA) and The Buy American Act (BAA) compliant
Applications
exoGIRT is used in ventilated rainscreen assemblies across a range of wall types, including steel stud, wood stud, and CMU construction. It supports continuous insulation and provides a stable sub-framing interface for cladding systems such as fiber cement, terracotta, and metal panels. Designed to integrate with common insulation thicknesses and framing layouts, exoGIRT accommodates both vertical and horizontal configurations in new construction and retrofit applications. Its lightweight FRP composition reduces handling effort, eliminates the need for pre-drilling, and allows for on-site cutting with standard tools, improving installation efficiency and field adaptability.
Thermal Efficiency
exoGIRT reduces thermal bridging at the sub-framing layer by replacing conventional metal Z-girts with a low-conductivity FRP profile. Unlike steel or aluminum girts, which create a continuous path for heat transfer through the insulation layer, exoGIRT limits conductive heat loss while maintaining structural performance. With a thermal conductivity of 2.5 BTU·in/ft²·hr·°F (ASTM C518), it improves effective R-value and supports continuous insulation in ventilated facade assemblies. This contributes to more stable wall performance, reduced energy loss, and improved compliance with energy code requirements.
Thermal & Structural Specifications
Thermal conductivity: 2.5 BTU·in/ft²·hr·°F (ASTM C518)
Flexural modulus: 7.5–7.8 Mpsi (ASTM D790)
Ultimate tensile strength: up to 180,000 psi (ASTM D638)
Shear strength: 21,100 psi (ASTM D732)
Fire rating: Class 1 (ASTM E84)
Fire propagation: NFPA 285 compliant
Technical Summary
exoGIRT is engineered to improve the thermal and structural performance of ventilated façade assemblies by addressing thermal bridging at the sub-framing level. As a pultruded FRP Z-girt, it reduces conductive heat transfer while maintaining the strength required to support a wide range of cladding systems. Its non-metallic composition, dimensional stability, and corrosion resistance ensure consistent performance across varying environmental conditions, supporting long-term durability and energy-efficient wall design.
Key Performance Attributes
• Reduces thermal bridging at sub-framing
• No thermal break pads required
• FRP construction; non-metallic and corrosion resistant
• High strength-to-weight performance
• Lightweight; no pre-drilling required
• Field-cuttable with standard tools
• Depths from 1½" to 6"
• Supports continuous insulation
• Compatible with multiple cladding systems
• Works with steel stud, wood stud, and CMU
• Made in the USA