Then caulk the trim window side and the siding side.
Cutting siding to remove an extieror window.
With the excess siding out of the way we were now able to remove the old nail fin as well.
Do not cut the vinyl off.
It s normally a cost cutting measure when done at the corners they don t have to be careful or precise about the corner cut etc.
Remove the pieces of vinyl siding from around the window area.
If the windows sit flush with the sheathing you follow the same procedure but don t have to worry about rolling it out the side of the window unit just bridge that gap from the wrap to the window and stop the flashing 1 8 of an inch short of the interior of the trim pieces.
Sorry to tell you but you will have to pull the siding off there is no other way there is a flange on the window that attaches to building structure it has to be air and water tight if you attach to siding and caulk it it will not look good and over time if the caulking fails water will get behind window and dryrot your siding get a good mask saturate the asbestos siding with water.
Exterior trim over siding i have never seen it on window door trim but seen plenty on door window trim.
Extract nails keeping the vinyl pieces in place in order to prepare vinyl pieces to be removed.
Using a circular saw set to the right depth just a hair shallower than our siding to ensure we didn t break through the house wrap or wall and a brace to ensure a straight cut we cut away the extra siding from around our window frame.
This is especially true with some proprietary systems where putting the window in after the siding is in place did not seem to be a possibility the window manufacturer considered so their integrated flashing cannot be installed properly under the siding without cutting the siding back undesireably or removing the siding pieces that contact the.
The windows would be more work imo.
Once it s been cut to size the siding is ready to be installed.
The third option is to cut between the side of the window frame and the edge of the siding with a metal cutting reciprocating saw which will cut through the installation flange and releasing the.
Each piece that is adjacent to the window should slide into the j channel but leave 1 4 inch within the j.