Flashing finless (European) aluminum-clad windows
I have finless, wood-frame, aluminum-clad windows to flash, and have attached a detail of what I’m planning so far. I’m looking to address water that makes it behind the aluminum cladding and comes down along the outside of the wooden frame, at the bottom of the window. I want to move it outside of the wall assembly rather than leaving it to run down behind the clapboards.
My problems with the attached detail are surface tension pulling water inward along the bottom edge of the frame, the visibility of the open gap below the window frame, and the distance between the cladding and the sill.
I’m also not crazy about the flashing spanning over the top of the sill (I have dropped the sill 1/4″ below the flashing to prevent capillary draw underneath the flashing). I don’t want to close the designed gap below the window frame, as I want to both prevent capillary draw at this joint and ensure than any water that manages to get inside the wall assembly has a way out. A way of cosmetically covering the gap so that it doesn’t trap water would be ideal.
I look forward to your suggestions, and will also greatly appreciate any similar details that you might be able to post or provide links for.
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