Cantilever roof balcony is a structure extending outwardly away from a wall in a home or other building. It uses a cantilever construction that is, the beams that hold up the balcony attached at only one end, meaning the second end extending outwardly from the structure is not supported. While this design is aesthetically pleasing and not very difficult to construct, it is not always the strongest alternative and can lead to problems as the structure ages.
Cantilever roof balcony must be maintained and checked quite regularly to ensure that it is safe to use. The clean look of a cantilevered balcony has made it a favorite among builders for centuries, but structurally, the structure can lead to problems. If the balcony extending too far from the building with no additional support structure may become unstable, leading to a bouncing or bending sense.
This is especially true if common framing materials such as pine are used to construct the cantilever roof balcony. Pine is a conifer, which means it generally has more flex and become more susceptible to cracking and rot. This can lead to a dangerous balcony that can bend or break at any time. Many builders choose instead to use hardwood or pressure treated wood to build the cantilevered balcony.