A pebble dash stucco addition on this old farm house
in Potomac Maryland

How we did it:

the electrical panel is mounted on a one inch spacer we put on a layer of felt paper
      before we put on self-furring metal lath.
Believe it or not, Tyvek is required and even inspected in Montgomery County. Sounds kind of monopolistic to me. Here, the electrical panel is mounted on a one inch spacer. You'll see why below. I don't trust Tyvek anyway so we put on a layer of felt paper before we put on self-furring metal lath.
We capped the spacer and
      the electrical box with metal flashing Porch was done in 2003 leaving a gap between
the bottom of the stucco and the porch
Fast forward to the finished wall shows how we capped the spacer and the electrical box with metal flashing. This prevents any rot behind the panel. Porch was done in 2003 leaving a gap between the bottom of the stucco and the porch. This looks a lot neater than a sloppy gob on the bottom. Also the gap provides relief from building movement, drainage for the stucco, and the ability to replace the boards in the future.
flashing on the ledger board These gaps should never be caulked
On the 2014 porch we put flashing on the ledger board. A piece of the finish floor material and a piece of masonite were used to gauge the plaster stop. The new flooring will slide easily under the stop. Porch roof from 2003 shows the gap between the stucco and the flashing was never caulked. These gaps should never be caulked ! The gap is a water exit for the stucco.
The windows and even the soffits are covered with plastic and tape A view of my office
The windows and even the soffits are covered with plastic and tape. Pebble dash splatters all over the place and the mission is zero clean up. A view of my office. Mortar boxes are raised off the ground to minimize bending and stooping. Bags are stacked high to minimize lifting.