What is laminated glass? It is basically the joining two or more sheets of glass between which some other material is inserted in order to achieve a number of additional features or properties. It can even have a purely decorative purpose, adding color.
The thickness of each layer or layer of glass will depend to a large extent on the final function that the laminated glass will have, although we can say in general that the thicker each blade, the greater the resistance of the result. These thicknesses usually vary between 2 and 10 millimeters per sheet, although they can be larger and can even be used tempered glass for added strength.
It is common to refer to values such as 3 + 3, 4 + 4, 5 + 5, etc. when talking about laminated glass. These numbers simply indicate the thickness of each sheet in millimeters. For example, 5 + 5 are two 5 mm sheets joined together
As for the layers that separate the glass sheets, we can find several materials, usually plastics, among which polyvinyl butyral (PVB) or ethyl vinyl acetate (EVA) stand out. The material used in this layer adds additional characteristics to laminated glass, the best known of which are to avoid injury to people against breaking, preventing fragments from separating, sound insulation and blocking sunlight.
This method not only allows to manufacture pieces of great thickness without giving up the typical transparency of glass, but allows them to be manufactured for much longer.
It is usually identified laminated glass with safety glass, and although this relationship exists, they are not exactly the same. Laminated glass has “extra strength”, but it does not necessarily have to be safety, although they are often used for this purpose when tempered glass is used for each of the sheets. However, there are safety glasses that are not laminated, they are simply tempered glasses.
O forms of this raw material are increasing, some of the most common are: bathroom and shower screens, security doors, commercial and building windows, tables, shelves and shelves, stair railings, partitions, showcases, aquariums, terraces, elevators. ..
Uses of laminated glass in construction
The evolution of materials and manufacturing processes of this type of glass has allowed its use in civil construction, replacing other elements and offering not only the necessary technical characteristics, but also a series of aesthetic criteria. which is only available for this material, such as transparency, brightness or versatility of designs.
Increased strength and safety. Laminated glass, when developed for this purpose, offers enormous resistance, to the point that it can be used as a constructive element, in fact this type of use is increasingly popular. It is easy to obtain glasses of this type that meet all the required official technical standards.
Glare reduction. The brightness inside a house or building is desirable, however, when it is excessive it can be irritating. To avoid this, when using laminated glass, filters are used to control the passage of sunlight. This is usually achieved by adding metal oxides to the inner layers.
Thermal insulation. One of the reasons for the use of laminated glass in building facades, in addition to its great resistance, is that with the correct combination of materials an excellent thermal insulation is achieved, which significantly reduces heating or air costs. conditioning.
Soundproofing. As with thermal insulation with laminated glass, good sound insulation can be obtained, thus increasing the material’s suitability for construction.
Aesthetics and decoration
Chemicals or dyes can be applied to the inner layer to achieve the color desired, and with it the appearance we seek or even use decorative papers. In these cases, the limits are those set by the imagination and, of course, by the budget.
From the point of view of interior decoration, laminated glass can also be used to separate rooms or rooms without preventing the passage of light, thus achieving a greater sense of spaciousness. Likewise, they can be used as a floor or pavement to separate plants, greatly increasing the brightness of the environment. The latter is an increasingly frequent use