Hi Gary. I read your post regarding window installation into t1-11. I have a similiar situation with t1-11 directly on studs (no sheathing). The rough opening for the window is framed beneith the siding. I plan to just cut an opening in the siding to match the RO and mount the new-construction window from the outside. Shim, nail in place, then use tape and caulk around the seams (which will be hidden under trim boards). Does this sound ok? Is there anything else I should do, like add additional flashing around the RO before putting the window in? Any advice would be greatly apprecited. Thanks, Jay jbofegs@yahoo.com

p.s. This is a barn re-work that is far from weather-proof, but I would still like to get it as dry as possible.