Solar control glass - application , types and characteristics

Plastic bags are becoming more and more popular in homes.They are quite reliable protection against wind and cold, the penetration of dirt and noise from the street.

separate species -sunscreens, which can significantly reduce the rate of ingress of ultraviolet rays into the room.To protect your home from an excess of sun in the summer - it is necessary to know how the solar control glass provides a similar effect.

The principle of solar glass

main purpose for which use sun glasses - a reduction in the flow of sunlight, thus reducing the effects of excessive ultraviolet radiation and the temperature inside the building.Typically, these glasses are distinguished different color shade: gray or greenish.

First, the solar radiation is absorbed by a toner layer.Usually, it is added either during the introduction of the metal oxides in the viscous mass, or later, by spraying or applying the film to the finished surface.Through toning light absorbers noticeable drop in temperature occurs: even if there is a single layer of glass with solar control glass, drop in temperature occurs in an average of 3-5 ° C.

These windows are made of glass reflector having a reflective effect, or else tempered by heat treatment.

Even in direct sunlight on the glass, should not be afraid of his excessive overheating.This danger threatens those glasses which have a too dark tinting film.

According to the principle of work of glass divided into two groups:

• reflecting,
• absorbing,

reflective layer is applied in the production process using sputtering, or in the installation or after, by pasting the film, which will providegood solar protection glasses.

absorbing glass production technology is more complicated.Getting on the surface, the light is scattered many times and is split into spectra.Ultraviolet remains inside the glass, and the remaining light fluxes pass into the room.

solar glass production technology

There are two methods for obtaining the glass:

• Furio,
• float.

Technology op Furio method involves rolling through rollers glass mixture, after which the resulting sheets are conveyed into the cooling chamber.A similar method had morally outdated, because unlike float technology involves a significant percentage of defects in the glass surface.

In Process The float method is more preferable because it has the following advantages:

• no need for modifying the surface of the glass,
• low defect rate of finished products,
• performance,
• optical defectson the glass surface are practically absent.

According to the float method, solar glass production, the molten mixture having a band shape, comes in a container with tin.Due to the fact that tin has a higher density, the glass is not mixed with it, and is on the surface, it is cooled and is leveled to a perfectly flat surface.Then cooled to 600 ° C enters the glass furnace in which it is sprayed on the layer of metal oxide.Thereafter, the glass is gradually cooled and checked for defects.In case of detecting them, when cutting such areas are cut out and used again in the next game - making, glass production process is waste-free.

types and characteristics of solar glass

More recently, as a solar control glass on the market were presented exclusively varieties with toning.They are inexpensive, but they have a major drawback: the higher the stopping power, the darker the glass, and accordingly, it transmits less light.As a result, on a cloudy day or in the evening, the room lighting leave much to be desired.Exceptions are those kinds of glasses that have a greenish tint.

From performance advantages necessary to allocate bandwidth, which make up 70% of sunlight and only 30% to infrared and ultraviolet flux.

But there are also disadvantages: tinted glass significantly heat up and are afraid to uneven cooling.

second effective solution to the problem of solar transmission will use the pane colorless solar glass, which allows the coating to reflect ultraviolet light.This method relies on the presence of particulate contaminants and chromium titanium oxide.A mixture of glass covers the thin film, the metal is well reflected sunlight, and the most important thing, "kicking" the excess ultraviolet radiation, while they themselves continue to miss the glass sunlight and do not heat up.The downside would be the cost method.

becoming popular combination variety, which is becoming a hallmark of exterior: silver mirror surface.The technological process of producing such a coating has no significant differences: the workpiece placed in a furnace at a temperature of 650 ° C, the coating layer is applied from four metal oxides, then subjected to quenching.At the end, silver coated glass cover and allowed to cool.

specified kind, in addition to high performance and reflect ultraviolet absorption, different and more excellent thermal insulation, which is very important in the winter.A nice addition would be a nice aesthetic look and no need to purchase curtains or blinds - as a combined reflex glass looks like a mirror and does not allow to consider what is behind it.From its drawbacks it is important to note the complexity of the manufacturing process, so that the final price is determined and for glazing.Most such glass is used in buildings, where visitors and people working ensures invisibility.A good example is provided by banks and office type building, as well as bars and restaurants.Another advantage of the choice of this kind of glass will be its durability and resistance to mechanical stress.

less common special kind of sun glasses - a photochromic glass, which was nicknamed "the chameleon".They show an interesting ability to change the percentage of light and heat gain in the room under the influence of sunlight.When ultraviolet excess, such glasses darken in cloudy weather on the contrary, translucent surface bounces back.This cultivar is prepared by adding silver and cesium natrievoboroalyumosilikatnoe glass.Of course, the final price of an ordinary double-glazed windows is capable of upsetting potrebitlya, but for domestic use there is an alternative - photochromic sun protection film, which is manually applied to any glass and has been applied for buildings and cars windows.And the price per meter of such a film is quite modest - only $ 4, which allowed it to be widely distributed among motorists.

Use of solar control glass

The first glass is used for protection from the sun.Any kind of glass used is able to significantly reduce the effects of ultraviolet radiation on the environment, located behind the glass.For example, furniture and curtains can easily fade, while under the "sight" of the sun.Glass is absolutely suitable for any application: its variants installed in conservatories and greenhouses to protect plants from excessive sunlight, in high-rise multi-storey buildings, in double-glazed windows of private houses and apartments.Moreover, any person at least once in a lifetime wearing sunglasses, which are covered with glass tinting film, or have the same shading impurities in the structure - so the beneficial effect from the use of such glasses is noticeable throughout.

Modern windows can obscure the natural light, but at the same time provide comfort in the following areas:

1. insulation space.On the market there are many varieties of ready-made windows and tinting films, whose mission is to protect glasses against the sun, and the internal heat in the room is reflected from the glass, and lasts longer.
2. Due to the properties of sunscreen increases the overall energy efficiency.Correctly chosen solar control glass in the pane is able to lower the cost of air conditioning and heating the interior space of the room.The difference is significant in comparison with ordinary glass and fiberglass.
3. solid inflicted covering different durability and high mechanical strength.

Solar control glass with their hands

Solar control glass with your hands is especially true if the windows face south.Tightly close the curtains or blinds are not the only way that is quite capable to produce an independent gluing sun film on the glass.There are several types of films, optimally suitable for this task:

• Standard toned.Designed for simple sun protection.The room, in the presence of a film on the screen, not very hot, and in addition, on television or the computer there is no glare from the sun.
• Mirror film.It is a perfect solution for the case, if the neighboring house is located in the immediate vicinity, and the desire to keep the curtains drawn there.Such a film on the glass from the sun provide one-way visibility when outside it is impossible to view the room.It is important to remember that this effect works in the daytime or the same, when the ambient light level outside is brighter than inside.When the lights mirror effect disappears.

• Matte Film.It is used for those cases when it is necessary to limit the transparency of glass.As a rule, internal glass partitions in order to reduce the line of sight.At home, the film has found its application in the stained glass door and glass shower walls in bathrooms.
• protective film.It has high resistance to mechanical damage.Its use is important in the nursery, because some species allow to make glass shatter-proof, which is important if the child because of careless actions, a blow on the glass.Even in the case of destruction, glass, coated with a protective film does not break into pieces.

Since the market has a large range of choice of films, and their price is available to any consumer, then the conclusion is obvious: sun protection film on glass is a tangible competition ready glazed windows, since it is not gluing require special skills.In the event that a decision to use it definitively, is to prepare in advance support tools:

• stationery knife,
• trowel for smoothing.The spatula should be used rubber, since the metal is easy enough to cause damage to the film,
• sprayed with a soap solution prepared to finish correcting the position of the film.Plain water in this case will fit, because it has no impact on the proper The adhesive composition.

gluing process should be divided into several stages for greater convenience:

1. Getting Started:

• on a flat surface and rolled out roll is measured required amount of film;
• using stationery knife cut the required size of land, it is important to leave the perimeter margin of 1-2 cm, which will later be circumcised;
• glass surface is cleaned from dust and dirt using alcohol-containing cleaners on the basics, and then wiped dry with a paper.Newsprint is better suited for the job than a rag, because it does not leave streaks on the glass.

2. Once the preparatory work has been done - is to move to the main:

• glass surface copiously moistened with soapy water;
• with film release liner.It is recommended to carry out this work with an assistant in order to avoid difficulties in gluing;
• with soap, adhesive film layer is wetted with the solution, so it does not start arbitrarily stick to the glass when glueing;
• further part of the film applied to the glass and gently spread with hands and squeegee.Also often used a small tight roll.Screed must always be from the center to the edges to remove the edges of the film speaking with moisture;
• the final stage of the work becomes gentle removal of excess film using a knife stationery.

It often happens and so that the film as a result of damage or replacement will require removal, in which case there will be difficulties.Some films are based on polyester, which refers to a chemically stable material, so, according to many experts, the traces of an adhesive composition with great difficulty and not always completely removed even with solvents and cleaning glasses.In this case, do not despair, but rather to draw attention to simple means.For example, enough to put a sponge fluorine-containing toothpaste and rub it traces left after the film.Then, the reverse side of a sponge having a rigid substrate, a second time window is wiped and no trace remains.In addition, most conventional wet wipes are also suitable for this task.