WESTLab – NFRC Simulation Experts




WESTLab is a National Fenestration Rating Council (NFRC) Accredited Simulation Laboratory with offices in the US and Canada. We offer NFRC simulation services to window, door and skylight manufacturers helping the industry get U-factor, SHGC, VT and CR ratings necessary for building energy code compliance and voluntary programs like Energy Star.


With eight NFRC certified simulators on our staff, WESTLab is the largest simulation laboratory in North America. Contact Ross DePaola, Jeff Baker or Ken Nittler for more information on simulation services.


Project Ratings


WESTLab is also a NFRC certified Independent Approved Calculation Entity (ACE) Organization. This enables WESTLab to help the commercial building industry to get project ratings under the Component Modeling Approach (CMA) using the CMAST software.


With three approved individual ACE’s, WESTLab is committed to getting CMA certificates issued quickly and cost effectively. Contact Ken Nittler for more information on ACE services.




Jeff Baker, P.Eng.

4 Beck Blvd, Unit 7, Penetanguishene, ON L9M 2H3, Canada




Ross DePaola

3473 Dell Dr, Madison, WI 53718, USA




Ken Nittler, P.E.

1721 Arroyo Dr, Auburn, CA 95603, USA