The previous owner installed each of the windows onto 1.25x1.25 frame on the outside of the house (I believe to create more of a window sills on the inside). Is it actually possible to do this with proper weather seal or is this a completely unacceptable way to install windows?
At a minimum I want to inspect/maintain the caulking they applied (or didn't) but I am worried I need to pull all the windows, cut into the sills inside and reinstall the windows tight against the house (and then add proper frames outside).
Note in the third picture the wood frame is attached to tongue and grove and no caulking is applied on the outside. This seems pretty bad to me and I know very little about construction.
We are removing siding from one wall of the house because there was some water damage from a gutter that caused damage to siding, T&G below, and even the framing. In this process I saw how poorly installed the windows are.
Window has a cosmetic frame around it that the siding actually goes beneath:
You can see the siding panels go right under the frame:
In a different location: after removing the external frame (the siding has also been removed exposing the T&G underneath--you can now see this internal frame onto which the window is installed (and no caulking...caulking only exists on the inside.