I am replacing a window in the shower. Here is what I plan to do to keep the window waterproof as best I can. Can someone comment on any problems I may encounter by doing this.
I will remove the old window to the studs. I then plan on flashing the rough opening with flashing tape to the house wrap. (assume this is done correctly). Next I want to caulk the sill to the rough opening so there is no void. I will then install the window(replacement type) and caulk all sides to fill all voids. (caulk is silicone) From the inside, I will place waterproof membrane around the exposed portion of the rough opening and wrap this around the cement board that is on the wall around the window (all new).
to finish off the window, i will put in corian around the window to bridge the window to the shower wall. This will be held in place by silicone caulk.
if i do this correctly, i dont think water should get in.
also, the window is shoulder high so the amount of splash will be minimal.
Corian often has mold release from the factory. Sand lightly and wipe with alcohol before trying to adhere.
Use only 100% silicone.
Silicone takes 48 hours to fully cure. Do not disturb it before that time. Don't try to make a cove with your finger or a spoon. It is better to allow it to fully cure and remove the excess with a razor blade.