The Interlock Roofing System is currently available in the following locations:

- Alaska, USA
- Alberta, Canada
- British Columbia, Canada
- Colorado, USA
- Connecticut, USA
- Georgia, USA
- Illinois, USA
- Labrador, Canada
- Maine, USA
- Massachusetts, USA
- Minnesota, USA
- Newfoundland, Canada
- New Brunswick, Canada
- New Hampshire, USA
- New York, USA
- North Carolina, USA
- Nova Scotia, Canada
- Ontario, Canada
- Oregon, USA
- Prince Edward Island, Canada
- Quebec, Canada
- Rhode Island, USA
- South Carolina, USA
- Vermont, USA
- Washington, USA
- Wisconsin, USA