Folks,

1. Do you have a certified licensed engineer to write the specifications?
2. What is the rating of the window in terms of wind speed penetration and PSI force?
3. I am not promoting Traco, but this URL provides an ample number of “definitions”.
4. Do search some more definitions via the Internet.
5. And, do note that all windows are not created equal.



1. In our 500 unit NJ co-op, we picked windows with a reasonably “high” resistance to wind penetration.
2. We replace only 15% of the windows each year so that we can be absolutely satisfied with the installer and the windows. If you replace all the windows, you may face issues that are insurmountable. Neighboring buildings have encountered just such a problem.
3. Scheduling is easier with smaller batches.
4. If there is a product defect as occurred with us a year ago, we needed to delay the window program. With a smaller batch it was far easier than rescheduling the entire building.
5. And with smaller batches we need not row” and thus use our capital reserve fund and our yearly assessments.
6. We do not have a punch list as our “outside engineer” certifies each installation before the workers depart the apartment.