Wind resistance of doors and Windows - Safety can not to be ignored

The news “11 killed and 102 injured in strong winds in Nantong, Jiangsu” really scary. Therefore, the wind resistance of doors and Windows is really very important!

l  Wind pressure resistance performance is closed doors and Windows under the action of wind pressure, not damage and functional disorders. 

l  Building/residential location, floor height, installation location may be affected by positive wind pressure, negative wind pressure or alternating positive and negative wind pressure;  For example, when exposed to heavy wind pressure, doors and Windows may be deformed, glass broken and hardware parts damaged. In serious cases, window sashes may fall down and safety accidents occur.

l  According to the National (Classification test Method for Air tightness, water tightness and Wind pressure Resistance of Building Doors and Windows) (GB/T7106-2008), the wind pressure resistance is divided into 9 grades, and the higher the grade, the stronger the wind pressure resistance.  This scale is not equivalent to the typhoon scale.  A level 9 means a window can withstand winds of more than 5,000 pa, easily withstanding a very destructive category 12 hurricane.

When you buy doors and Windows, you should consider the following aspects: 

1. Combined with geographical location and building height, wind power varies with different landforms in coastal plain hills;  The higher the height, the greater the wind pressure;  Secondly, the window orientation of the room will also affect the calculation of the window wind pressure value, which must be understood in advance and communicated with the designer. 

2. Profiles, when selecting doors and Windows, I took the initiative to ask about the strength of profiles. In previous years, the national standard stipulates the wall thickness of profiles is 1.4mm, while began to be 1.8mm in March this year.  

3, components, doors and Windows stress rod section width wider the stronger the wind pressure;  Doors and Windows hardware quality, need to know before the selection of Windows.

4, installation, to find the installation team experience ability, technical level, service awareness and attitude of high.