Making and fixing the drip caps
A drip cap is a horizontal piece of wood that is fixed above the door and window to deflect any water from running inside.
This project requires two drip caps. One to go above the door, and one to go above the window.
Both drip caps can be shaped from a piece of 1 1/2" x 3 1/2" (90mm x 45mm) wood that is 36" (900mm) long.
Make a pencil line down the length of a piece of 1 1/2" x 3 1/2" (90mm x 45mm) wood that is 36" (900mm) long.
See the drawing below for the dimensions.
Set the angle of the blade on a circular saw (or bench saw) to 26.87 degrees off square.
Then rip (cut down lengthwise) along the pencil-line.
That will make two drip caps. One for above the window and one for above the door.
Now a bit of paint.
When the paint is dry, fix one above the door and
one above the window and as low as possible so as not to get in the way of the door or window opening or closing.