HOW TO SELECT SYSTEM WINDOWS AND DOORS

Performance indicators
1.Physical performance indicators: The wind resistance, air tightness, water tightness, insulation, sound insulation, daylighting.
2.Mechanical performance indicators: Mainly refers to the door and window hardware, repeated opening and closing the opening and closing force performance.

The rational allocation of index
1.The product category: According to the economic strength and practical function, advised to choose a broken bridge aluminum alloy Windows, aluminum wood composite Windows.
2.Open means: Hanging on the window, this opening party will help in indoor air flow, accelerated the indoor ventilation, due to air entering is a certain Angle, can avoid the wind straight to the person’s harm. Casement Windows can be greater resistance to wind pressure, the product to provide the best air tightness, water tightness. Both are good, can choose according to their own actual situation.