For those saying there is no way they are PGT; do you understand that you can bury the frame to create the reveal you'd like? Western 600 Series, owned by PGT, has a 1.5" frame profile, in (2) .75" steps; first the frame, then the glass leg/stop. Western offers a .875" muntin, so to have your reveal match that of your muntin bars, you'd simply bury .75" of the frame and leave the .75" glass leg/stop exposed, which would read to most eyes as being the same dimension as the muntin bars. Fleetwood 3800-T has a similar profile, as does IWC, and both frames can be partially buried to create the reveal dimension you'd like (within reason). Awake, a window and door manufacturer out of Gilbert, AZ, has a 1" perimeter frame on their fixed windows that cannot be buried, as it comprises of a beauty cap and pressure plate. If you were to bury a portion of the beauty cap, and you suffered a glass or igu failure, you'd need to destroy whatever exterior finish that buries the beauty cap in order to get the glass/igu out. Fleetwood has a similar condition with their Edge series, so be cautious of that as well.
Steel is expensive. Ridiculously expensive for most build budgets. Very heavy too, which would increase the install/labor price. Nothing matches steel though, as steel is a window or door all its own, with an incredible look and feel. With most steel windows will come imperfections, as they need to weld, grind, then finish the frame. During this process, pits can be created in the welds that are then not filled or masked by the grinding flat or finish that's applied.
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