The concrete window sill is a solid, long-lasting base for windows and ledges. It serves an important structural purpose, by supporting the window itself, and is an aesthetical element that keeps the water away from window frames and preventing exterior walls of the building from staining.
Benefits
Offers support to the window itself
Protects window frames from rainwater and the exterior of the building
from staining
Window sills help to complete any project, as they are a part of the window trim
A smooth finish and a tapered shape allow easy installation