Why is this? Is it because most homes down here are masonry walls and the stucco layer over the edges effectively waterproofs it?
Most of the time it's just buttering some caulk and sealant.
However in South Florida, I have NEVER seen any window guys do any sort of paper waterproofing. What's confusing me is most of the videos I saw, they do a water proofing all the way around the window opening with felt plastic or whatever, folding over to the outside surface of the exterior wall. (1) I have seen a bunch of youtube videos and also hired window pros to install windows before. I have included a sketch to explain my questions below. I have a couple of window installation questions.
