Solar Window Film
For thousands of years, glass has been used to allow daylight into buildings and provide weather protection. The float glass process and industrial abseiling that occurred in the 1950s made it possible for high quality flat glass to be mass produced economically. Nowadays, almost all architectural glass is made using this process. Most of the curtain walls, new windows and skylights used in constructing commercial buildings have insulating glazing for comfort and energy efficiency. Below is a look at glass commonly used in glazing.
This is the most commonly utilised architectural glass. It has excellent surface flatness since it is not heat treated, meaning that it is not subjected to distortion that typically occurs during glass tempering. Perhaps it's only demerit is that it breaks into sharp and dangerous shards.
This is a heated-treated glass product, heated and quenched in a manner that residual surface compression is created in the glass. This surface compression makes the glass generally have more resistance to breakage when compared to annealed glass. This type of glass has at least twice the strength and resistance to breakage from thermal stresses or wind loads as annealed glass. The required heat treatment generally leads to some distortion when a comparison is done to annealed glass. It can break into sharp shards, just like in the case of annealed glass.
This type provides more than four times the strength of annealed glass, giving it superior resistance to breakage. Just like in the case of heat-strengthened glass, the heat-treatment usually leads to some distortion. Should it break, fully-tempered glass is shattered into many tiny fragments, making it suitable to be used in safety glazing under certain conditions.
This glass is made up of two or more glass lites adhered together using a plastic interlayer. Since it can prevent dangerous glass shards from falling out after fracture, it is often utilised as overhead glazing in skylights and safety glazing. The plastic interlayer also offers protection from attenuates and ultraviolet rays, thus giving excellent acoustical characteristics to laminated glass. Since laminated glass shows excellent energy absorption characteristics, it is also a vital component of protective glazing, like bullet-resistance or blast glazing assemblies.
Insulating Glass Units
It is made up of two lites of glass or more having a continuous spacer that encircles a sealed air space. Typically, the spacer has a desiccant that dehydrates the sealed air space. This air space decreases heat loss and gain together with sound transmission, giving the glass units superior acoustic and thermal performance characteristics when compared to single glazing. Most commercial curtain walls, skylights and windows contain these glass units. How long this glass type lasts depends on the desiccant's quality.