I would like to ask for advice on installing finless windows in a concrete wall.
Specifically, what anchors should be used and what is the proper flashing technique? The windows are aluminum, large 8×7 and 12×7.
A local installer states that he drills holes, puts plastic sleeves and then anchors with sheet metal screws. That doesn’t seem to be strong enough, considering wind pressure will probably loosen the screw within the plastic over time. I have not ready anything about this technique.
Any help would be greatly appreciated.
Replies
Build a wood casing screwed to the concrete opening. Frame the bottom shelf with an angle so that the water striking the window will run away from it. Flash the entire wood casing using the proper primer. Install a window in the flashed opening and leave adequate space all around the window for insulation.
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