How hurt it is to live in substandard doors and wi

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Whether you have moved into a new home or have lived in an "old nest" for many years, do you know whether the doors and windows of your place are qualified

whether you have moved into a new home or have lived in an "old nest" for many years, do you know whether the doors and windows of your place are qualified

what kind of doors and windows are qualified

I. aluminum alloy material:

the wall thickness of the main force bearing rod of the window is not less than 1.4mm, and the wall thickness of the main force bearing rod of the door is not less than 2.0mm

II. Strength of doors and windows:

the tensile strength should reach 157 Newtons per square millimeter, and the yield strength should reach 108 Newtons per square millimeter. When purchasing aluminum alloy doors and windows, you can bend the profile moderately by hand, and it should be able to return to its original state after you let go

III. thermal insulation standard:

the thermal insulation coefficient of traditional aluminum alloy doors and windows is large, which can not meet the Mingyong building energy conservation standard at all. The new heat insulation bridge breaking aluminum alloy profile has a heat insulation coefficient of 1.8 ~ 3.5w/M2 · K. The heat coefficient of the most exquisite German broken bridge aluminum door and window leather can reach < 1.1W/㎡·k。

IV. insulating glass:

the first sealant is butyl hot-melt sealant. The butyl adhesive coating must ensure the continuity of the adhesive strip, and the width of butyl adhesive shall not be less than 3mm

desiccant (molecular sieve) should be molecular sieve with 3A pore size; Glass shall be edge treated

if the thickness is between 4-10mm, the width of the edges and corners shall not be less than 0.5mm; if the thickness is more than 10mm, the width of the edges and corners shall not be less than 1mm

v. safety glass:

tempered glass, laminated glass is safety glass. Ordinary insulating glass is not safety glass, but double-sided tempered insulating glass is safety glass

safety glass must be used in the following cases:

1. The area of a single piece of glass in a window is greater than 1.5 ㎡, and the area of a single piece of glass in a framed door is greater than 0.5 ㎡

2. Floor to ceiling windows with a height of less than 500mm from the bottom edge of the glass to the final decoration surface; Frameless door and window glass; Inclined windows, skylights, daylighting roofs

external windows of buildings with 3, 7 and above floors

VI. fasteners:

aluminum and aluminum alloy pop rivets are not allowed to be used as fasteners for stressed connection of doors and windows

VII. Hardware accessories

the hinges and sliding supports of aluminum alloy casement windows should be stainless steel products, the thickness of the steel sheet should not be less than 1.5mm, and there should be an elastic adjustment device. The sliding blocks are generally copper products. The handle tail zinc alloy die-casting products are chrome plated or coated on the surface, and aluminum alloy products can also be used, with the surface oxidized

VIII. Appearance:

1. The product surface should be free of aluminum chips, burrs, oil stains or other stains

2. The sealant joint should be continuous and smooth, and there should be no overflowing adhesive at the joint; The surface of aluminum alloy profile has no obvious color difference, unevenness, scratch, scratch and other defects

IX. surface coating:

the surface coating of aluminum alloy doors and windows plays a role in protecting the surface of aluminum alloy profiles, mainly including oxide film, electrophoretic painting, powder spraying and fluorocarbon spraying. The paint must be green, tasteless and non-toxic

X. opening and closing force:

doors and windows shall be able to open and close flexibly under the action of opening and closing force of no more than 50N

Xi. Repeated opening and closing performance:

the number of repeated opening and closing of doors and windows should not be less than 10000 times

thickness not up to standard:

thinning the thickness of aluminum alloy profile, because the plate wall is thin and the strength is not enough, under the action of large load, it is easy to damage the surface or deform the doors and windows, reducing the wind pressure resistance of aluminum alloy doors and windows

unqualified surface coating:

the surface coating should be comprehensively considered according to the climatic conditions of the building location, the use position, the building grade, economic conditions and other factors. For example, the coastal area is seriously eroded by the sea breeze, so it is necessary to choose a thicker coating. The oxide film should not be used in areas with serious acid and alkali. In addition, the use of inferior paint will emit toxic substances, causing damage to the health of family members

unqualified Hardware:

no matter how good the doors and windows, unqualified hardware will greatly reduce the service life of doors and windows

the air tightness, water tightness and sound insulation performance are unqualified:

the air tightness is unqualified, the air in your home is worse than that outside, and harmful substances such as haze from the outside fill your home, which is harmful to your health. The water tightness is not qualified. In windy and rainy days, there is water leakage and seepage, which is even more harmful to the wall. The renovation is not only about replacing doors and windows

poor sound insulation performance, causing noise pollution and affecting people's normal work and rest

what is the most important

if someone buys a door and window for 30 years, your door and window may have to be replaced every 5 years. In fact, what you pay is a high door and window fee

the article is made of aluminum alloy doors and windows Provided by the author




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