Three layers of insulating glass and double-layer insulating glass

The glass arrangement of the current aluminum alloy doors and windows is mostly double-layer hollow tempered glass, and the sound insulation effect is already excellent. Nowadays, many consumers are pursuing higher configurations. I heard that now I have three layers of insulating glass, I want to ask three layers.

How much better is the sound insulation effect of three-layer insulating glass than double-layer Cheap insulated glass?

The thickness of the three-layer glass is generally about 5+5+5+0.5+0.5=16MM. Why do you want three layers? It is impossible to have no gaps in the profile between the profiles. The increase in the sound insulation effect of the single-window three-layer glass is not as good as that of the single glass window + hollow glass window. The ideal way to increase the sound insulation is to A single-layer glass window, inside which is made of a glass window with insulating glass. When the New Year’s Eve is the most noisy, the sound outside is lighter than the ticking of the indoor alarm clock. The insulating glass is more afraid of moisture and fog, single glass window The outside water vapor, the double glass window compartment heat, the three glass double window insulation noise, this is the most ideal layout.

What kind of aluminum profile is the three-layer hollow glass window, and how many millimeters is the thickness of the three-layer hollow glass hollow layer?
To make three glass windows, the profile is best to choose more than 65 profiles to ensure that the three-glass two-cavity space is larger than 10mm. The larger the spatial distance of the insulating glass, the better the thermal insulation and sound insulation. Because there is a desiccant inside the hollow glass that can adsorb water molecules. The gas is dry, and when the temperature is lowered, the inside of the insulating glass does not cause condensation, and at the same time, the dew point on the outer surface of the insulating glass is also increased.

For example, when the outdoor wind speed is 5m/s, the indoor temperature is 20°C, and the relative humidity is 60%, the 5mm glass starts to dew at the outdoor temperature of 8°C, while the 16mm (5+6+5) insulating glass is under the same conditions. Condensation occurs only when the outdoor temperature is -2 °C, and 27 mm (5+6+5+6+5) three-layer insulating glass begins to dew at an outdoor temperature of -11 °C.

Because the insulating performance of the insulating glass is better, the temperature difference between the two sides of the glass is larger, and the effect of cold radiation can also be reduced; when the outdoor temperature is -10 ° C, the temperature in front of the indoor single-layer glass window is -2 ° C and hollow. The temperature in front of the glass window is 13 ° C; in the same building structure, when the outdoor temperature is -8 ° C and the indoor temperature is 20 ° C, the 3 mm ordinary single-layer glass cold radiation area accounts for 67.4% of the indoor space, while the double layer is used. The insulating glass (3+6+3) was 13.4%. The use of insulating glass can improve the safety performance of the glass. In the case of using the original sheet glass of the same thickness, the wind-resistant strength of the insulating glass is 1.5 times that of the ordinary single-piece glass.

How many millimeters thick is the three-layer hollow glass hollow layer the same as the ordinary two-layer insulating glass?

1. The thickness of the hollow glass hollow layer is generally 6mm~20mm; in special cases, it is also larger than 20mm, but it is extremely rare; if the thickness of the hollow layer is less than 6mm, the sound insulation amount is almost the same as the single-piece glass of the same thickness. Therefore, the minimum thickness of the hollow layer is 6 mm.

Second, the expression method of the insulating glass is a three-segment representation, such as: “5+9A+5″, the “5″ on both sides means that the thickness of the original piece of glass is 5mm; “A” is the English word for air (Air) The abbreviation “9A” means that the intermediate glass has a thickness of 9 mm. We are the most common in the usual, mostly in 9A and 12A specifications.

Third, the original sheet glass specifications are generally: 3mm, 4mm, 5mm, 6mm, 10mm and 12mm six kinds, for the same thickness of the original sheet glass, the larger the intermediate glass spacing, the larger the allowable maximum area.

4. The insulating glass is made of two or more pieces of glass with effective support and evenly sealed and sealed at the periphery to form a dry gas space between the glass layers to achieve the heat preservation effect. It is an energy-saving glass, such as “5+”. 9A+5″ ordinary insulating glass is roughly equivalent to the insulation effect of 100mm thick ordinary concrete.

5. In addition to the heat insulation function, the insulating glass also has good optical performance, anti-condensation and good sound insulation function. Therefore, it is often used in buildings with high requirements for thermal insulation and sound insulation functions, such as hotels and residences. , hospitals, shopping malls, office buildings, etc., are also widely used in vehicles and ships and other means of transportation.

The advantage of three-layer insulating glass, which is practical compared with double-layer insulating glass?

The three glasses are white and double-layered, and the sound insulation effect is much better than the ordinary hollow effect. Generally used in the three northeastern provinces or alpine regions, the sound insulation effect is much better than the ordinary hollow effect. To be practical, it is definitely cheaper to use double glazing.

What are the application areas of ultra-clear glass?

Ultra-white glass can be used for various deep processing like other float glass, such as tempering, bending, lamination, hollow assembly, etc. The superior visual performance of ultra-clear glass will greatly enhance the function and decorative effect of these processed glass. Therefore, ultra-clear tempered insulated glass has a wide range of uses and broad market prospects.

High-end market

Ultra-clear glass has crystal-like luster, clear brightness, and good refractive index is also widely used in the high-end market. For example, the interior and exterior decoration of high-end buildings, high-end horticultural architecture, high-grade glass furniture, various imitation crystal products and cultural relics protection display, high-end gold jewelry display, high-end shopping malls, shopping mall space, brand stores and so on.

Technology Products

Ultra-clear glass is also used in some technology products, electronic products, high-end car glass, solar cells and other industries because of its good light transmittance. The development and application of solar energy will also provide great opportunities for the development of ultra-white glass. The glass substrate of solar photovoltaic system needs to use ultra-white glass, because the transmittance of ultra-white glass is above 92%.

building

For example, the National Grand Theatre in Beijing uses ultra-white glass.

Single piece fire resistant glass applications and benefits

Single piece fireproof glass (chemical fireproof glass) is a new type of building functional material with good light transmission and fire retardant properties. Usually it is as transparent as ordinary glass. After a few minutes of fire, the chemical tempered layer can prevent flame spread and heat transfer, and limit the fire to a small area near the fire point to provide fire protection. Good fire retardant resistance at temperatures above 1000 °C.

This transparent fire safety glass can be used as a high-grade hotel, theater, exhibition hall, airport, gymnasium, hospital, library, commercial building and other public buildings and other fire doors, fire windows and fire partitions for civil and public buildings without fire compartment requirements. The range of ideal fireproof materials. Usability: A variety of thickness options to meet different application needs. Suitable for indoor and outdoor applications in buildings. According to actual requirements, it can be combined with other glass to form a sandwich or Laminated insulated glass with fireproof function.

Features:

1 superior fire resistance performance (Fire resistance performance)

The single piece of fireproof glass can survive for more than 90 minutes under the flame impact of up to 1000 °C, thus gaining valuable time for people to escape and disaster relief work.

2 High strength performace

The single-piece fire-resistant glass not only has excellent fire resistance, but also has a high strength and outstanding hardness. At the same glass thickness, the strength of a single piece of fire resistant glass is 6-12 times that of float glass; it is 2-3 times that of tempered glass.

3 safety (safety performace)

After the single piece of fireproof glass is broken, the pieces are obtuse and the pieces are smaller than the pieces of tempered glass, so even if they are damaged, they will not cause harm to the human body.

4 high weatherability (Weatherability)

Compared with traditional grouting or composite sandwich fireproof glass, single-piece fireproof glass has the highest characteristics except high strength, and it has no influence on the appearance and service performance under the long-term exposure of ultraviolet light. It can be transparent and bright for a long time.

5 workability is good (Workability)

The single piece of fireproof glass can be used in a single piece, or can be processed into fireproof laminated glass, fireproof insulating glass, point fireproof curtain wall glass, fireproof coated glass, etc. as needed.

Advantages of LOW-E glass

With the evaluation goal of this function, the shading coefficient, the shading coefficient of domestic low-emission Low-E is 0.66 under the condition of about 50% transmittance of 20%, that is, 66%. Solar thermal energy enters the room, and then greatly increases the loss of air conditioning refrigeration, while multi-function heat reflection Laminated Glass online

With the evaluation goal of this function, the shading coefficient, the shading coefficient of domestic low-emission Low-E is 0.66 under the condition of about 50% transmittance of 20%, that is, 66%. The solar thermal energy enters the room, and then greatly increases the loss of air conditioning refrigeration, while the multi-function heat-reflecting Low-E glass has a shading coefficient of only 0.44, and the energy-saving effect is increased by 22%. The plan is estimated by the intention: For example, 50,000 square meters, the cooling power consumption is about 500 degrees of cooling, calculated by 2 degrees per hour. The electricity consumption of all buildings is about 1000 degrees, and the calculation of 10,000 degrees is 10 hours a day.

According to the 90-day hot spot in Chengdu, the annual cooling cost is about 180,000 degrees, so you can save about 400,000 yuan a year. You have not thought about the cost of winter heating. As a project of a hundred years, it has benefited a lot. The elegant and beautiful products represent the development direction of the world’s leading cultural and aesthetic trends in the world of architecture. From the indoor to the outside, the visual effect is transparent, and the simple feeling of nature is refreshing, and the mood is smooth, and the work enthusiasm and work efficiency of the workers will be further improved.

The glass is made of pure quartz sand ore and refined by leading purification equipment to make high quality float glass. And the hot reflective glass is very pure on this high quality float glass.

Tough glass purchase attention points

Glassware bought at the night market burst when heated in a microwave oven. “Businessmen clearly say that they are thicker than ordinary glass and can be heated. Why is this happening? According to Zhang Jingbo, an associate professor at the Chemistry College of Tianjin Normal University, this situation indicates that the purchase is likely to be tempered glass, not containing high temperature borosilicate.tempered glass supplier of acid salt.

In recent visits, it was found that glass products such as bowls, plates, lunch boxes, and water cups on the market, except for a few brands marked “heat resistant”, most products are not limited by the instructions. Many salesmen have confused the concept of “tempered glass” and “heat-resistant glass”, saying that tempered glass of more than ten yuan is thicker than ordinary glass and can be heated. “Glassware is divided into ordinary glass, tempered glass and heat-resistant glass according to different materials. Ordinary glass is fragile, and it may burst when poured into boiling water; tempered glass is easy to burst when the ambient temperature is abrupt; Containing high temperature resistant borosilicate, with excellent heat resistance at 550 °C, can be directly used in microwave ovens and ovens.” Zhang Jingbo said that the purchase of heat-resistant glass should pay attention to the coefficient of thermal expansion, the smaller the coefficient of thermal expansion is relatively hot The better the stability and thermal shock resistance in the environment, the standard coefficient of China’s heat-resistant glass industry is 4.0 or less.

“At present, there is no clear standard for heat-resistant glassware in China. The so-called ‘heat-resistant tempered glass’ and ‘tempered heat-resistant glass’ products appearing on the market do not exist from the material composition. Was misled.” The responsible person of the China Daily Glass Association, Tianjin New World Glass Container Co., Ltd. disclosed that the China Daily Glass Association has now formulated the “Management Measures for the Use of Heat-Resistant Glass Products Certification”, and the future heat-resistant glass The logo will be affixed for consumer identification.

Renovation of building energy-saving windows and doors, changing glass or sticking energy-saving glass film?

Building energy conservation includes new construction (including alteration and expansion) of building energy conservation and energy-saving renovation of existing buildings. China has a building area of 40 billion square meters, most of which are not energy efficient.
The public building area of the country is about 4.5 billion square meters, of which public buildings (shops, office buildings, hotels) with central air-conditioning are 500-600 million square meters, and the energy consumption per unit area of public buildings accounting for 11% of the existing building area is about It is about 10 times that of an ordinary residential building, and it is called a large energy consumer.

Some public buildings have more than 20% of the building area, and the energy consumption through doors and windows accounts for about 50% of the entire building. The energy loss through the glass accounts for about 75% of the energy consumption of the door and window, and the Laminated Glass online energy consumption accounts for about 80% of the window area.

There are only two options for the energy-saving renovation of glass in existing buildings: one is to replace the original glass with energy-saving glass, and the other is to attach the original glass to the thermal insulation film for construction.

Types and functions of energy-saving glass

1. Coated glass: Coated glass is one or more layers of metal, alloy or metal compound on the surface of the glass to change the properties of the glass. According to different characteristics, it can be divided into heat reflective glass and low radiation glass.

Heat-reflecting (sunlight control) glass, generally coated with one or more layers of metal such as chromium, titanium or stainless steel or a compound thereof on the surface of the glass, so that the product is rich in color and has appropriate transmittance for visible light. Infrared has a high reflectivity and a low transmittance to ultraviolet light, so it is also called a solar control glass. Compared with ordinary glass, the shading coefficient is lowered, that is, the shading performance is improved, but the heat transfer coefficient is not changed much.

Low-emission (LOW-E) glass is a film consisting of a plurality of layers of silver, copper or tin or other compounds on the surface of the glass. The product has a high transmittance for visible light and a high reflectance for infrared rays. Good thermal insulation properties, due to the poor strength of the film, are generally made of insulating glass and not used alone.

2. Insulating glass: Insulating glass is composed of two or more glass frames made of aluminum hollow frame, sealed by cement or welding, forming a free space in the middle, which can be filled with dry air or inert gas, and its heat transfer coefficient U ratio The single-layer glass is small, and the heat preservation performance is good, but the shading coefficient SC is reduced little, and the heat reflection resistance to solar radiation is not improved much.

3. Composite of coated glass and hollow glass: including heat-reflecting coated hollow glass and low-emission coated insulating glass. The former can reduce the heat transfer coefficient and the shading coefficient at the same time, and the latter has a good light transmittance. Types and functions of architectural glass film

The architectural glass film is made by bonding high-quality polyester (PET) film and metal coating layer by vacuum magnetic spray coating process, which can provide excellent solar control functions for various types of glass. Architectural glass film is roughly divided into three. Big category:

(1) Building insulation glass film

Building insulation film is mainly used for energy saving. It is equipped with UV-blocking and safety explosion-proof functions. The building insulation film is divided into a heat-reflecting film and a low-radiation film.

The heat reflective film (also known as the solar control film) is attached to the surface of the glass to allow a certain amount of visible light to pass through the room. The high infrared reflectance IR and the low solar heat gain coefficient SHGC can keep the indoor temperature from rising in the hot summer. Too much, thus reducing the cost of electricity for indoor air conditioning.

Low-emission film (also known as LOW-E film) can transmit a certain amount of short-wave solar radiant energy, so that solar radiant heat (near-infrared) enters the room, and at the same time can more than 90% of indoor object heat sources (such as heating equipment) The radiated long-wave infrared (far infrared) is reflected back into the room. The LOW-E film can make full use of the outdoor solar short-wave radiation and the long-wave radiation energy of the indoor heat source. Therefore, it can be used as a heat preservation and energy-saving effect in heating buildings in cold regions.

(2) Building safety glass film

The main functions are safe explosion-proof, anti-theft and bulletproof. The film has good impact resistance (anti-explosive strength), stab strength, and UV blocking ability, high transparency or full transparency.
(3) Decorative glass film

The main function of this film is decorative, a wide variety such as basic color, translucent, opaque and printed with various geometric patterns, opaque films such as one-way see-through film, translucent film such as matte film, relative to frosted glass and craft glass In terms of manufacturing, it has the advantages of durability, quick installation and low cost, and it can also change the decorative pattern whenever and wherever possible.

The Ministry of Construction and the National Development and Reform Commission stipulate that it is necessary to use safety glass for 11 parts of the building that require glass as the building material.

In the existing buildings, non-safety glass film can be upgraded to safety glass. The safety of laminated glass is better than that of tempered glass, which can avoid the spattering of glass bursting debris. Cost comparison between energy-saving glass and heat-insulating film

Case: 12MM tempered transparent glass for the curtain wall of an exhibition center hall. If it is replaced with 12mm heat reflective coated tempered glass, the material cost is 210 yuan / square meter, the old glass disassembly cost is 70 yuan / square meter, the total transformation The total cost is 280 yuan / square meter. If two LOW-E insulating glass with a thickness of 10 mm and a thickness of 12 mm are replaced, the material cost is 375 yuan / square meter, and the disassembly and assembly cost is 70 yuan / square meter, which is a total of 445 yuan / square meter.

The method of adding heat-reflecting film, the material cost is 100-130 square meters, the mounting cost is 30 yuan/square meter, the total is 130-160 yuan/square meter, and the cost of heat-reflecting film is 50% of the cost of heat-reflecting glass. %about.

The original glass is attached with a low-emission (LOW-E) film while being attached to the heat-reflecting film to obtain an energy-saving effect close to the LOW-E insulating glass. Six advantages of glass film modification

In the energy-saving renovation of building doors and windows and glass curtain walls, there are six advantages of the glass film:

(1) More economical. The tempered transparent glass or the colored glass-coated heat-reflecting film can save 50% of the total cost compared with the replacement of the heat-reflecting glass, and the rest can be analogized. For example, the original ordinary insulating glass is attached to the heat-reflecting film or the low-radiation film and then upgraded to Hollow heat reflective coated glass or hollow low radiation coated glass.

(2) Faster. The existing glass film is shorter than the old glass and replaced with a new glass, and the operation is simple.

(3) More environmentally friendly. Changing the glass will result in a large amount of broken glass construction waste, which will increase transportation and landfill costs, and the film can utilize existing glass to enhance its insulation and safety performance. It can also prevent indoor carpets, curtains, fabrics and paints from fading, effectively protecting indoor furniture, computer and other office equipment and extending their service life.

(4) More secure. The general thermal insulation film also has certain safety enhancement functions, and has the chip adhesion performance of the clip (glue) layer glass, and its safety is superior to that of tempered glass, and the safety of the professional safety film is stronger.

(5) Healthier. The mounting adhesive in the glass film contains a UV (ultraviolet) absorber that blocks 98%-99% of UV light.

(6) It is lighter. If it is replaced with insulating glass or hollow LOW-E glass, the total weight of the two glass plus hollow parts will be doubled or more, which will greatly increase the building load.

Three classic glass sun room renderings

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The glass sun room renderings are different from the traditional construction. The whole is a frame structure, which can be made through the combination of doors and windows. However, the glass sun room supplied by Sunshine Room Network not only has a beautiful appearance, but also has various system designs to ensure that your sun room has The most comfortable experience.

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If there is no concept for the colored Laminated glass sun room, then look for a vacancy, then find a beautiful glass sun room renderings, consult the sun room network for the whole house customization, according to a glass sun room sold, have you not seen?

The necessity of green design of glass curtain wall

The continuous application of curtain wall technology in the construction industry has made the development of branches in the curtain wall field more and more extensive, especially the glass curtain wall has gradually been applied to the construction of buildings and houses, and has become the iconic side building of many modern cities. .
China has also become the world’s largest producer, manufacturer and owner of glass curtain walls. As the external design framework of the building, the glass curtain wall has the advantages of good ventilation performance, low resource consumption and strong thermal insulation performance, but its problems in light pollution are also prominent, which raises the high green design of the tempered glass supplier curtain wall in the construction industry. Requirements. Ben will explain the necessity and practice of green design of glass curtain wall in the construction industry.

Fixation of glass curtain wall and deformation of pit

The glass curtain wall has the advantage that it is different from other wall designs. It is different from the general curtain wall design and infill wall. It can bear the large deformation from the outside world like wind and ground motion, and has strong displacement function. And it can not bear the pressure from the load and the load of the main frame. The glass curtain wall is composed of a glass panel and a supportable frame. It is not the load or the protection of the old structure outside the building. Pit. When subjected to force, it does not bear the internal force from the outside body. The pressure will hang the force point on the main structure of the building. From the direction of the dry glass to the presence of cracks, the standing area of the cross-sectional area can be connected with the glass and can withstand deformation from the outside. If the overall green design uses a spring machine and bolts, the rocker arm is placed inside and connected to the main body of the periphery, even if the displacement enlarges the glass curtain wall, it cannot be damaged. Because of its own fixed and anti-deformation ability, it is applied to high-rise buildings, and the glass curtain wall has become a unique show in the building due to its strong earthquake resistance.

As long as a small knife can distinguish the quality of the insulating glass

Insulating glass is widely used in life, but if you are not specializing in insulating glass or working in related industries, you may find it difficult to distinguish the advantages and disadvantages of insulating glass. Here, Weihao Glass introduces several simple identification of insulating glass. Pros and cons, for reference
Any piece of insulating glass is taken from the finished product, and any of the following phenomena can be found, and the consumer can judge that it is a non-conforming product.
1. Cut the two seals into one section with a knife. If there are many small pores (small honeycombs) in the cross section, this means two possibilities. One is to manually glue the glue, it will be wrapped in the air, and the bubbles will be generated. Another possibility is to use The two-way sealant produced by the low-level technology will also have pores when the machine is glued. As long as the pores appear in the cross section, the life is definitely short.
2. Use a knife to cut open at any corner of the insulating glass to see if the joint angle is effectively wrapped with butyl rubber. The actual theory shows. The double-pass sealed insulating glass made by the joint angle method has a water-permeable path mainly at four corners, and the water permeability is 70%, and the water permeability of the edge is 30%. Therefore, the use of continuous curved aluminum strips or butyl rubber to effectively wrap the four joint angles can greatly extend the service life of the insulating glass. If the four corners are not effectively wrapped with butyl rubber, the double seal The practical significance is not great.
3. Use a knife to cut the two sections of the two seals and the glass by a few centimeters, and then tear the sealant out by hand. If the surface of the glass is smooth after tearing, there is no residual glue, indicating that the sealant and the glass surface have no adhesive force, so the sealing effect can be imagined.
Weihao Glass–China’s leading supplier of energy-saving door and window curtain wall glass! More than 20 years to build a glass brand for building curtain wall glass, specializing in the production of insulating glass, tempered glass, Laminated Glass online, fire-resistant glass, low-e glass, glass curtain wall, curved steel glass, strict control of production process to ensure glass quality!

How to maintain the glass curtain wall during the construction process?

Glass is a wearing part and maintenance is very important. A wide range of circulating air is required for storage, especially during high temperature and cycle temperature cycles. If conditions do not allow them to be stored indoors, they should be covered with tarpaulin or plastic to prevent wind and inflow of water, and the hood should be opened periodically to check for moisture condensation.
The glass must be covered with an opaque shield that must never be stored directly under the sun. Stacking all types of glass should be placed upright at an angle of 5°-7° from the vertical and leaning against a solid straight wall. The top and bottom edges of all glass should be on the felt pad and separated by protective cardboard or other felt. If the glass is flat, the surface must be covered with oil felt to prevent dust, grit, or other contaminants.
In the construction, it is usually hung with a bright flag, ribbon, etc. near the glass or attached to the front of the window frame, side column or window sill to mark the space for installing the glass. Never let the rope touch the tempered Laminated Glass straight, and do not let the mark or paint directly on the glass surface.
If welding, cutting sandblasting, or other construction processes that may damage the glass are used near the glass, plywood or plastic panels must be applied as a tight barrier to prevent them from affecting the glass.