My extensive research of the window manufacturing and installation industry has lead me mostly to the low-rise vendors. Some claim they can install their Vinyl windows in any high-rise building (against Fire Code).

Wood and Vinyl (combustible) window frames are not allowed in high-rise construction.

Aluminum frames are strong but have the highest thermal-conductive rating.

Fiberglass have the best energy performance and least expansion / contraction related to glass.

There is a growing demand for replacement windows in the aging stock of high-rise residential buildings. The logistical challenges of removing and installing windows in occupied high-rise residential buildings will demand greater technical and people skills.

Please recommend anyone who has experience in this area.