Setting a Keystone
Brendan Mostecki shares his techniques for adding a masonry keystone detail to a window
When Massachusetts mason Brendan Mostecki adds a keystone above a window, he centers and places the keystone very carefully, then he makes sure he has even joints between bricks and a wedge to complete the layout. In this video, Brendan explains why you don’t want to use mud on the angle line and shares his two-step method for striking perfect joints and achieving a clean, polished finish.
