Curtain walling is used to cover the outer building. The outer walls then become none-structural. This system is utilized to uphold against any weather conditions, allowing a great source of natural light into the building the curtain walling has been designed for. The fittings are resistant to air and water infiltration and therefore decaying more slowly than other types of building materials. They also resist forces of nature on the building, like high winds. This particular system is made up of light-weight materials, therefore, reducing construction costs. It also offers a vigorous and structurally impressive façade offering thermal performance but does not carry a structural load from the building other than its own weight. The curtain wall is made up of light-weight materials, therefore, reducing construction costs.
The advantages of this type of glass system are that it offers a very attractive and modern look to any building, it reduces the chance of building sway and also helps with thermal efficiency. A health and safety factor would be that it would slow down the speed of fire if there ever was one and it also upholds against air and water.