Windows in the decoration is a less popular topic, it is the style of picking and choosing just a few, there is not much room for maneuver. But until you use it, you will feel its impact on your life. Why my windows can not block the road noise? Why close the window will still summer rain leakage winter wind leakage?
Here's a detailed analysis of the complete list of window problems in your house. Lazy people can just drag to the end to see the conclusion yo!
Why can't you isolate road noise?
If there is a road outside the window, the main sources of noise are roughly the sound of honking horns, the sound of tires rubbing against the ground, and the sound of a car's engine and exhaust pipe running. If the window is in a neighborhood, possible noises are the loud music of a square dancer, the sound of small children playing, dogs barking, or school announcements.
Sounds in the neighborhood and honking on the road are high-frequency noises that can be easily blocked out; road noise is the low-frequency noise you can't hide from.
Publications and public funds for the financing of the▕
There are two factors affecting the amount of noise: the amount of obstructions and the distance. The more the shelter and the farther the distance from the source of noise, the less the amount of noise.
According to studies, the noise level is highest in the middle floors of buildings close to the road and decreases gradually to the top and bottom floors. In neighborhoods surrounded by buildings that are shaded, the top floors are the loudest, and the noise level decreases from top to bottom because the higher the floor, the less the shade, and the louder the noise level.
Knowing this, when buying a house, you can pick the right floor according to the distance from the noise source, the number of buildings around it, and the coverage of greenery (which also counts as shade). Buildings close to the road have the loudest noise on the middle floors.?
What kind of glass is good for soundproofing ▏? ▕
Long-term exposure to low-frequency noise can make children's hearing insensitive.
In order to achieve the effect of soundproofing, we have to cut off the medium of sound propagation, which is also called "sound bridge" in the architectural acoustic environment. Provided that the window seal is intact, the air medium in the window and the metal medium contained in the window can still help to transmit sound.
So, wouldn't vacuum glass be the best choice?
After the air is removed from the vacuum glass, in order to prevent the two pieces of glass from being forced together by atmospheric pressure, the two layers of glass are fitted with a metal support between them to carry the atmospheric pressure, and some inert gas is injected in between. Without air, sound can still be transmitted through the metal support. Moreover, the vacuum glass on the production process requirements are extremely high, the process is not pass, after two or three years will leak into the air, slowly become hollow glass.
Insulating glass is actually a kind of insulating glass, the original production process is in the middle of the two layers of glass to extract all the air, injected with inert gas, and then the overall sealant. But many manufacturers in order to reduce costs, the previous steps omitted, only two layers of glass, the center is air. Insulating glass is very popular, because of good thermal insulation, and sometimes as "acoustic glass" to sell.
However, insulating glass and vacuum glass can only block high-frequency noise, and can't do anything about low-frequency noise.
Currently on the market can be bought to shield the high and low-frequency noise in the acoustic glass, is laminated glass. Laminated glass in the middle of the PVB film can effectively filter low-frequency noise, according to different use of the environment, there are double and triple points. Higher floors, no blocking buildings around, nearby airports or train stations can use triple laminated glass.
Double laminated glass can be used if the floor is low, surrounded by sheltered buildings and near an intersection.
Other factors affecting soundproofing in the ▏financial sector
Besides the glass, the profiles (window frames) are also important.
The soundproofing effect of aluminum windows and doors is not as good as that of plastic-steel windows and doors because the metal content of aluminum windows and doors is much higher than that of plastic-steel windows and doors.
The same thickness, plastic steel doors and windows sound insulation effect is stronger than the broken bridge aluminum 5-15 dB. In addition, high-quality plastic fiber reinforced plastic windows is internal is thick-walled multi-cavity, sound propagation in the multi-cavity body reflected back and forth many times after a portion will be consumed, the sound insulation effect is therefore greatly enhanced.
From the way to open, smooth push need gaps and space, so sliding doors and windows can not guarantee the airtightness, its sound insulation and thermal insulation effect than the casement.
Reinstall the seal that is required for all soundproof glass, you will find the window increasingly difficult to push open.
Insulation and moisture, choose broken bridge aluminum is better
Your home windows through the wind does not heat preservation? Rainy days will leak? This is all because the window is not well sealed.
It may be because of the home with a sliding window instead of casement windows, the window itself is not good quality, the installation of styrofoam sealant waterproof glue did not play enough to lead to the window frame and the wall between the small gap left and so on. Especially in the south without heating, the windows of the thermal insulation and moisture resistance is more important!
Break the bridge aluminum alloy doors and windows integrated aluminum alloy and plastic advantages of the two materials, heat preservation, fire prevention, waterproof, anti-theft, very popular in the market.
It should be noted that, at present, selling windows manufacturers are more like an integrator, aluminum (window frames) from Feng aluminum or Zhongwang such professional production plant to buy, hardware from a variety of Sino-foreign joint venture manufacturers there to take ...... a variety of channels to buy good parts assembled into windows to sell.
Bridge-breaking aluminum windows are not relatively well-known manufacturers, the entire industry is still in a mixed stage, a variety of quality problems are endless. For example, the national standard provides that the aluminum thickness of broken bridge aluminum windows and doors ≥ 1.4mm, the heat insulation strip should use PA66 nylon. Some manufacturers in order to save costs, aluminum thickness is only 1.3mm, the use of cheaper PVC plastic insulation strip. Poor quality insulation strip tensile strength is poor, thermal expansion and contraction ratio does not match the aluminum, with the use of the use of shedding.
Fortunately, PVC has flammable properties, with a lighter to start a fire can be identified.
The normal service life of the hardware should be about 10-15 years, some of the substandard with a few years on the bad, resulting in the scrapping of the whole window.
There are also manufacturers to take inferior aluminum to the second best, the use of bad weather is vulnerable to the impact of the aluminum deformation, and even cause the consequences of glass rupture, fall off. In addition to the naked eye can see that inferior aluminum is not so shiny, lighter to identify the thermal bar, other identification standards for consumers is too high. Given that this market still lacks brand assurance and industry regulation, the safest buying advice we can give is to shop in large building materials market.
How to avoid the window pit?
Buying windows will generally be divided into two offers, the first xx yuan / square meter is aluminum + glass offer, the second yy yuan / square meter is aluminum + glass + hardware + screen offer.
Some manufacturers will give the price of the whole package, including what does not contain what is listed clearly, but this dry manufacturers are relatively few, we still come to count the buy windows will step on the pit!
▏Measurement of the heart of the financier
The production of windows is depleted, such as your home to use 5.4m of aluminum, the remaining 0.6m is wasted. That is why some manufacturers will count 5.1m2 of glass as 6m2 and 5.4m of aluminum as 6m.
But the production technology is better, can control the loss of manufacturers will give you a loss ratio, from 1.1-1,5 ranging from the total area / total length multiplied by the loss ratio after rounding down to the final billing area.
Pan windows also have additions to the▕
The windows, like the renovation, also have additions. But this does not mean that all the additions are malicious additions. Windows are a non-standard product and the final price will fluctuate according to the actual situation of your home.
If you have a U-shaped window with two corners, then you have to count the money for two more columns, and if your window opening is too high, you have to count the money for the load-bearing transom (the horizontal column) ...... Or you only install a window, do not meet the requirements of "x square meters installed", the business may not be able to give you free shipping free installation fee.
General manufacturers have y ㎡ only open a window standard, if you want to open more windows, naturally, there will be additions.
But there are additions you have to be careful.
For example, when installing windows, fill the gap between the wall and the window frame to play a lot of styrofoam and sealant, in order to rain and waterproofing, windows inside and outside the waterproof glue, the more the amount of these glues, the better the window's various properties.
But the cost of gluing will not be reflected in the offer, some manufacturers to the time of installation before you want to glue the money. Because of the high usage, it is possible to overcharge you by a few hundred to a few thousand. The best way is to sign a contract with the manufacturer to determine what glue with what brand, and the cost of glue to the cost per square meter to go.
Other additions may include, but are not limited to: sealing strips, Low-E film, corner yards, corner grouping adhesive and so on.
▏Air protection measures for the▕
Unless your house is on the first floor, make sure to ask your workers to bring safety belts for working at height, and it is better to put this requirement on the contract.
Otherwise, in case of an accident, you are the first responsible person and need to bear a large amount of compensation costs.
Finally, a simple and rough summary:
Soundproof windows recommended plastic steel windows + multi-layer PVB laminated glass. Focus on thermal insulation recommended broken bridge aluminum alloy windows + insulating glass. If your home is surrounded by residential buildings, not on the side of the road or viaduct, there is no low-frequency noise, broken bridge aluminum windows and doors are enough. If your home is on the side of the road, or the middle floor, low-frequency noise can not be blocked, quickly consider changing plastic + PVB laminated glass doors and windows.
No matter what you buy windows, in the local large building materials market to buy more secure Oh!
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