Stern & Company has been a proud participant in the development of standards and testing in the window and door industry for over 20 years. Our participation is meant to make sure that both large and small manufacturers of windows and doors have a voice at the table when setting standards and testing requirements. 

AAMA: American Architecural Manufactures Association: Has been a leading source for product certification, standard development, education and training. AAMA has long been involved in legislative regulation for both building and fenestration energy codes in the residential and commercial building industries. 

IGMA: Insulated Glass Manufacturers Alliance: Is focused on developing and advancing the manufacturing of insulating glass units through developments of codes and standards on a worldwide basis.