I had to yet again test my motivation to build the playhouse by disassembling and rebuilding all three of the windows I built so far because the z-bar metal flashing I used was too small to channel rain water over the top edge of the siding I plan to use. So I had to install a new larger z-bar. I also used bigger wood to trim the bottom of the windows. Here is a picture of the rebuilt west wall window. It looks virtually the same, but you can clearly see the larger bottom trim, and if you look closer, you can see the larger z-bar.