Winter glass insulation

1, preferably flat open Windows
　　
　　Casement Windows (90 degrees open window) will be much better than sliding Windows. Flat open window General with rubber article sealed, push pulled window with tops sealed, so flat open window of closed real sex and isolated dust, and rain, aspects will than push pulled window strong; and flat open window General with two points lock or world lock for lock closed, and push pulled window is with Gou Suo or latch, so gas key sex aspects flat open window also strong many.
　　
　　2, Bay Windows/French Windows less than the wall 30%
　　
　　Bay Windows, French Windows in appearance so widely used by more and more residential, but the two Windows are often not conducive to insulation, especially not suitable for Northwest towards the window using this window. Even if the area should not be more than a wall of 30%.
　　
　　3, the ratio of residential Windows in 1/7-1/10
　　
　　Home decoration when the window area not open window area larger, resulting in the greater the heat loss of the room, to reasonable housing ratio (ratio of window area to floor area of the room) should be 1:7 to 1:10.