GreenGirt XO™ Building Energy Calculator

The GreenGirt XO™ structural thermal framing system pays for itself. On many projects, switching from triple- to double-pane glass alone covers the cost of the entire system, furnished and installed, at 6-7x the energy return. That adds up to tens of thousands of dollars in annual savings, often $1 million or more over 20 years, while meeting the requirements of ASHRAE 90.1.

Enter your climate zone, wall assembly, and fenestration specs to see exactly what that looks like for your project: U-value improvement, annual energy savings, thermal bridge losses, and output you can drop straight into your specifications.

See what your project saves. Select the button below to get started.