Drive any street and compare two houses with identical stucco: the one with trim around the windows and a cornice line reads custom, the one without reads builder-grade. That difference is usually foam trim, and it installs in days.
What it is
Dense EPS foam cut into architectural profiles, bonded to the wall, then coated with mesh-reinforced base and finish. The foam provides shape, the coating provides toughness. Finished, it is indistinguishable from carved masonry at a fraction of the weight and cost.
Where it earns its keep
Window and door surrounds first, always: they frame every opening and change the whole facade. Then cornice lines at the roof, base bands, and columns or arch accents on entries. Restraint wins; two or three well-placed profiles beat wrapping the house in ornament.
Durability, honestly
The mesh-reinforced coating takes weather and reasonable impact for the life of the wall. It is not a curb for your car bumper, but neither is masonry trim at five times the price.
On remodels we profile-match existing trim so additions disappear into the original architecture. Bring us a photo of your house and we will sketch what trim placement would do for it, free.