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VTB Series - Structural Thermal Break Material

Voss Thermal Break Pads

VTB material is Voss Engineering Inc.’s load bearing, thermal break product designed for use between structural framing elements that penetrate the building envelope. Thermal loss through conduction at structural connections can lead to increased energy consumption and the damaging impact of condensation on interior finishes and indoor air quality.

As the global community of building owners and users increasingly look beyond first costs when evaluating a structure, thermal bridging issues at the building envelope should be addressed. Incorporating thermal break pads in the connections at the building envelope can lower annual operating expenses by reducing energy and maintenance costs.

VTB material is available in the following thickness:

  • VTB25 (1/4″)
  • VTB50 (1/2″)
  • VTB75 (3/4″)
  • VTB100 (1″)

VTB washers and SORBTEX isolation bushings are also available. Contact Voss Engineering for more information.

VTB Material Properties

ASTM / UL NO.VALUE/UNITS
Mechanical
Tensile StrengthD6389,400 psi
Flexural StrengthD79022,300 psi
Compressive StrengthD69538,900 psi
Shear StrengthD73213,400 psi
Thermal
Thermal ConductivityC1771.8 BTU•in/hr•ft2•°F
Coefficient of Thermal ExpansionD6962.2 in/in/°C × 10-5
Flame Resistance
UL Subject 94UL94HB
Oxygen IndexD286321.8 %O2