We spend nearly twice the cost every year to pay for our own doors and windows that are not energy-efficient!When you enjoy air conditioning or floor heating in your house, doors and windows can only solve the problem of heat convection, but can not stop the heat conduction. A lot of energy in the house flows through your doors and windows to the outside, generating energy waste and increasing your energy expenditure. If your doors and windows are more energy efficient, the situation will be different.One day in early 2008, a German businessman used the European standard energy-saving windows and doors to repair the villa in order to make his villa in the suburb of Beijing meet the green energy saving standard of "passive room" in germany. After energy-saving transformation, he found that the summer indoor air conditioning is even lower than the outdoor 8 degrees Celsius, the monthly electricity bill is less than half of the past. Even if the air conditioner is opened, it will not run as frequently as before, refrigeration, noise, comfort is also greatly improved.In fact, the importance of energy saving doors and windows has been widely recognized in developed countries. According to "2013-2017 years of China's metal door and window industry development prospects and investment forecast analysis report" to understand, in Europe, the use of energy-saving doors and windows has reached 67% of the total doors and windows. The vast majority of doors and windows in China are non energy saving plastic steel and ordinary aluminum alloy doors and windows, energy-saving doors and windows account for only 0.4% of the total window.Doors and windows not save energy, not only make the people for daily energy expenditure spend a lot of undeserved money, but also make the country produce huge energy waste. Survey shows that in the society of our country in primary energy consumption, building energy consumption accounted for the total energy consumption of the whole society in 2000 20%, with the crazy development of real estate in recent years, the building energy consumption has accounted for 40% of the total energy consumption of the whole society, and the energy loss of doors and windows accounted for about 50% of building energy consumption, change in other words, the energy loss and total social energy consumption accounts for about 20%.Energy saving doors and windows popularity is low, resulting in China's building energy consumption is more than 3 times of developed countries. According to the relevant department estimates, if the energy level of China's doors and windows 43 billion square meters of existing construction in the area of can reach the current European standards, annual savings of coal 4.2 tons, equivalent to China's annual coal output 20%. And the reduction of coal consumption, will directly help reduce haze generation (central heating, a large number of coal is one of the main causes of the northern winter prone to haze weather). The resulting health level, the improvement of the ecological environment and a series of good, far beyond the cost of energy-saving doors and windows replacement."Latent energy waste is now a hundredfold and a thousand times greater than a waste of food and drink, of which doors and windows are" big funnels ". Doors and windows can't be found in every family, but most people don't understand doors and windows now." Ni Shouqiang, vice president of China Building Metal Structure Association, said the whole story.What is door and window energy saving? In the door and window industry, there is a heat transfer coefficient, K value. The greater the K value is, the more heat is transferred and the more energy is lost; on the contrary, the less heat is transferred, the less energy is lost.According to the EU standards, the K value of doors and windows is generally between 1.1 and 1.3. In recent years, German doors and windows K value standard dropped from 1.3 to 1.1, Switzerland from 1.3 to 0.7, France plans to achieve zero energy consumption in 2020.In contrast, the current status of energy-saving doors and windows in China is worrying. Compared with the developed countries, we are lagging behind for nearly 30 years. For example, the K value in Shanghai is 2.8, which is equivalent to the German standard in 1984.Fortunately, the relevant government departments have been aware of the importance of energy-saving doors and windows, all over the country in the development and introduction of energy-saving doors and windows more stringent standards, Beijing, Tianjin area has begun to implement the K value is less than or equal to 2 of the standard, Inner Mongolia and Northeast China also carried out less than 2.2 standard.The Copenhagen climate conference, Prime Minister's solemn commitment to the world: "by 2020, China's carbon dioxide emissions per unit of GDP fell 40% in 2005, 50% to 2020, China's non fossil energy accounts for the proportion of primary energy consumption reached 15%." This means that in the next 5 years, China will take effective measures to increase energy conservation and emission reduction efforts. As the building energy consumption accounted for the proportion of social energy consumption greatly will bear the brunt of the doors and windows as building opening lighting area, the actual building energy consumption accounted for 50%, such a change to the energy-saving doors and windows industry will become the inevitable trend.

Prevention measures:(1), in the window frame should be installed at the transverse baffle, the intersection position of horizontal mullions, should note the silicone sealant, the exposed screw head should also be in the top layer of sealant, according to the design requirements of the seal material selection;(2) a layer of silicone sealant is injected into the non dense part of the joint between the window frame and the facing, and the gap between the window frame and the structure should be packed tightly when the window frame is secured;(3) the window sill should be drained outwards and the camber height is not less than 30mm. The outer surface of the window sill should not be higher than the window frame drain hole, and the upper window lintel is made into an olecranon or drip trough;(4) in order to remove the water in the window frame as soon as possible, the 600mm slot with 4mm * 20MM flat bottom drain hole should be drilled in the lower frame slot of the door and window, and the distance between them should be about 2 meters. Drain water out through a small hole;(5) the rubber strips that fall off during construction should be repaired in time. The rubber seal should be injected into the corner to make it bond, and the sealing material outside the window should use the integral silicone sealant.

OneMaterialsDoor and window material generally includes three aspects: aluminum, glass, metal pieces, the owners have to buy products, often pay more attention to the aluminum and glass thickness, while the hardware requirements are not very high, it is not comprehensive. In fact, the state requirement is a colorful aluminum standard, aluminum with high quality aluminum color, its thickness, strength and oxide film can generally meet the national standards, such as the relevant provisions of the state requirements: aluminum aluminum color wall thickness should be more than 1.2mm, film thickness should reach 10 micronTwomachiningWith good materials, the next step is the processing of doors and windows. Due to the technical content of doors and windows is not high, mechanization level is not high, mostly rely on the manual operation of the installation workers, which requires operators have a good product quality awareness.ThreeperformanceThe performance of doors and windows is different because of the different range of use,Often have to consider the following aspects: strength, which is mainly reflected in the doors and windows profile material, whether it can withstand high pressure; air tightness, mainly reflected in the window structure, doors and windows of the inner fan and frame structure is tight, close doors and windows.FourPriceBecause of the price level and the price of aluminum door and window level has a direct correlation, but on the whole in a certain period and price is relatively stable, in general, the price of high-quality windows is 30% higher than that of inferior door window product,Usually the inferior door window aluminum extrusion aluminum recycling contains a lot of impurities, with some aluminum wall thickness 0.6-0.8 mm. Both the tensile strength and yield strength are significantly lower than the relevant provisions of the state, the window is not safe, so the owners in the purchase of products do not covet cheap, but ignores the life safety of yourself and othersFiveAppearanceCustomers choose the door and window products, usually pay attention to the appearance of the product and the decorative patterns of the glass, but often despise the composite film on the surface of doors and windows.Composite film is formed by coloring the thermal oxidation film, which has the function of corrosion resistance, abrasion resistance, high gloss, and the fire protection function of colleague sea chrysanthemum chrysanthemum, so it is necessary to compare the similar products when choosing the aluminum alloy doors and windows products. In terms of glass technology vary from person to person, different owners choose according to their preferences.六信誉In the choice to focus on the credibility of the business and service quality, it is very important to choose a good brand reputation of the manufacturers, through the relevant certification inspection of manufacturers control related industry standards are complete and true, before installing attention by viewing the lock hole of internal material, final checks.

In the past, urban development was not fast,Many houses do not pay attention to sound insulation,With the rapid development of urbanization, the noise is increasing gradually,Urban noise has become an important part of environmental pollution,Not only interferes with people's normal life and work,It can also make physical and mental health seriously affected.So in the decoration of the time,Doors and windows with better sound insulation effect should be chosen as much as possible.First, soundproof glass window is purchased1, look at the materialIncluding aluminum profiles, glass, hardware, whether the color is consistent, hardware assembly is complete.2, look at processingHigh quality aluminum alloy window, fine processing, tangent smooth, consistent angle (the main frame is usually 45 degrees or 90 degrees), in the stitching process should not appear obvious gap, switch smooth3. Look at the glassSee whether it is insulating glass, there is no coating, plating composite film in general corrosion resistance, wear resistance, high gloss.4. Look at the sizeTo see if the window size is correct, it must be consistent with the actual size.Two, sound insulation door purchase points　　　　Indoor doors and windows are thinner than the walls, so in addition to the window, the door is another noise barrier focus. On the market security doors, interior doors have corresponding sound insulation products:Core filled sound insulation door: glass wool yarn or rock wool is filled in the core of the door leaf, and the door leaf seam is sealed with sponge rubber strip.Outsourcing soundproof door: in ordinary wood door outside is covered with a layer of artificial leather, artificial leather filled with rock wool, and long leather layering with bubble nail nail with sponge rubber strips glued around the gap seal.Quiettm fire door: filling the rock wool sound-absorbing material in wood door frame, with asbestos board, galvanized steel and refractory fiber board with external package, sealed with sponge rubber sealing glue.In the purchase, what should pay attention to it?1. Look at the weightThe formula of sound insulation is directly related to the density of the material, so the sound density is relatively good, and the molded door is relatively light, which is the root cause of the bad sound insulation of the moulded door. But note: flat hollow doors in the middle of the sound insulation cotton will be more sound than the real wooden door.2, see thicknessThe thicker the surface, the better the sound insulation effect. The surface board of general wooden door should use 8mm thick. The thickness and evenness of the surface layer are better, but the cost will increase. But the iron fire door surface iron 3mm thickness, sound insulation effect is also good.3, see flatnessThe flat wooden doors, Mentao combination with better, but no matter what the structure. So long as the deformed wooden doors are soundproof.

Standard hole size: the opening of the door and window is completed, and the final hole size after the waterproof mortar is the standard size of the door and the hole.Before the window is installed, the hole needs to be painted with a cement mortar, so that the hole surface is smooth and the size is regular. Outside the window sill board surface should be poured into the water into the 3-5% outward, the wall part should be slightly higher than the exposed surface.Brick (clay brick, ETS block) windows and doors should be reserved for buried concrete block. The spacing requirement of concrete block is: the spacing between the top and bottom of the entrance should be 180mm, and the distance between the left and right sides of the entrance should be 500mm.Door and window standard hole dressing“Wet door and window frame installation”When the hole deviation is greater than 10mm and the cement mortar is used to fix the hole, the door and window fixing piece is connected with the civil structure, and the nail fixing is not required. Nylon expansion screws should be used for fixation.“Wet window piecing material installation”Piecing material on port plugging;Piecing material should be lengthened connected with reliable structure design;Combined door (window) frame and piecing material card, application of two-way fasteners tightening, the spacing should be less than 500mm; from both ends of spacing is not greater than 180mm; piecing material door (window) gap between the frame sealant seal.“Window frame installation”The main and auxiliary frame installation clearance should be strictly controlled according to the main and sub frame design gap. After installation, the actual clearance of main subframe should not be less than 4mm.The main and secondary frame clearance control should adopt the special main and secondary frame clearance adjusting block. The main and subframe clearance shall not be controlled by fastening fasteners directly.“Foaming agent plug joint”“The range of plug in foaming agent”“Application requirements of blowing agent”The gap between plugs is 15~25mm. The l construction temperature is +5 degree CBefore construction, clean the filling area and spray it with water;Jet from bottom to top, jet volume to 70% of the filled volume can be;Ten minutes, the surface starts to solidify, before the solidification will overflow the foaming agent to squeeze into the crevice. Prevention of outer membrane damage of foaming agent.▼▼▼▼“Water mortar plug joint”“Requirements of water mortar plug”Plug mortar should use waterproof mortar; conventional mixing ratio: cement: Sand: waterproof agent (weight ratio) is 1:2.5:0.03. Adjust mixture ratio according to use situation. The polypropylene fiber and Dura fiber can be added into consideration of crack resistance;Professional seam plug teams are recommended for plug seams;The reasonable gap is 15~30mm. It is necessary to adopt steel mesh fine stone concrete method when the hole is more than 50mm;“Steel subframe installation node”“Polymer cement waterproofing (JS)”The 1. surface must be smooth, firm, clean, no water, no leakage; uneven and cracks and other defects must be filled in, the leak must stop; Yin and yang angle should make arc angle. -2. in strict accordance with the requirements of the factory burden ratio and accurate measurement of ingredients when the liquid material in a blender, slowly add powder under stirring for mixing (which can add appropriate amount of water to adjust viscosity, but in the water before adding powder plus), to fully achieve uniform dispersion, no dough, no precipitation so far. The prepared materials should be used up within 2~3 hours.3. according to the selected construction method, according to the order by layer completion, the interval between the layers before the layer coating dry solid non sticky as the standard. The general construction takes about 4 hours and the temperature is 20 degrees centigrade. If the temperature is low, the humidity is big, the ventilation condition is bad, then the time will be longer.The surface must be smooth, firm, clean, no water, no leakage;Uneven and cracks must be filled up, and leakage must be stopped;The angle of yin and Yang should be made into arc angle.“Outdoor plastering of doors and windows”The door window frame outside must leave 5mm glue injection slot width and depth of 6mm;The glue injection can be used with PVC Slot Reserved: segmentation as a notch, to be outside the paint layer after curing, and then removed the PVC type split bar.The painted surface should be slightly more than the window frame, and its thickness should not affect the opening of the fan and the drainage of the window and door.“Glue sealing on the side of door and window”The glue pouring notch and the base should be cleaned and the sealant should be applied after the drying;Neutral silicone sealant should be injected and sealed. Sealing sealant on the coating surface is strictly prohibited;Neutral silicone injection glue should be full, uniform and uninterrupted;“Hollow glass”The outer sealing adhesive layer thickness is 5~7mm;Low-E glass coating must be directed toward the hollow layer, and the Low-E glass is located outside the chamber when it is installed;The tempered glass should be labeled with 3C according to the standard, and the double tempered steel should be marked with 3C on the two tempered glass;“Glass pad installation”“Hardware installation of door and window inner fan”Fasteners for door and window hardware parts shall not be core pulling rivets“Window contractor”Doors and windows must be installed in the repaired doors and windows;But the hole deviation is more than 10mm, and the cement mortar is used to repair the hole, and the fastening piece shall not be fastened with the nail. Nylon expansion screws should be used for fixation;Piecing material should be designed and lengthened to port after occlusion, and effectively fixed structure;Piecing material and application of the combo box fastener and the bidirectional fastening, stitching position sealed with sealant;Plug foaming agent should be inserted into the crevice before curing and must not be cut;Sealing sealant on the coating surface is strictly prohibited! Glue injection notch should be cleaned before injecting glue;The outer sealing layer thickness of insulating glass is 5~7mm;The heavy block and the limiting block of the glass cushion block should be placed according to the requirements;Hardware fasteners shall be made of stainless steel and all shall be fastened. No rivets shall be used at any location;