How to flash window trim below window
Hi guys, I have been reading a lot about flashing and according to Hammer and Hand, these are the locations that need flashing:
Flashings should be installed:
1. At all horizontal joints between different exterior finishes unless the upper finish overlaps the lower finish.
2. At every offset in cladding, changes in cladding substrate, and at all penetrations (horizontal transitions between siding, stone, brick, tile, or stucco).
3. Where stresses can be concentrated (such as at the rim joist/foundation joint).
4. Where drainage is compromised (such as a change from wall cladding to parging).
5. The top and bottom of windows, doors, and all penetrations (vents, lights, hose bibs, electrical outlets, electrical meters, etc).
Now, I am trying to figure out the best way to properly flash the trim underneath a window. These seems like one of the most important things to flash in a house but also more difficult.
Is the best way to do it- to have and angled/sloped piece of trim and then notch a line in the bottom to prevent water from wrapping around? Please see my picture attached.
If that is the best option, I assume I should caulk the seam between bottom of window and top of this piece of trim?
Does anyone use metal flashing here?
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