I have no clue how an aluminum window is fixed to a solid block wall opening,I live in South Africa and the window I bought is glazed and came with 4 lugs that slides down the edges of the frame.
The only thing I can assume is when the window is fitted,holes are drilled through the lugs into the masonry and fixed with some sort of anchor screw before being plastered.Well that's what I think I don't know
Installing aluminum window in block wall
aluminumwindows
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Best Answer
Your assumption is right. You should fit the lugs to the masonry. As shown in this video at about 2m25s : https://youtu.be/bFsW1rh1r3I?t=145