Advantages
The sash of the fixed window is embedded in the wall, and the glass is directly installed on the sash. The joints between the glass and the sash were previously sealed with adhesive strips, which were easy to fall off because of the changes in the heat and cold of the strips. Now, the joints have been sealed with sealant instead, seal the sides of the glass against the window frame. If the sealant is tightly sealed, both have good water-tightness and air-tightness, it is difficult for air to form convection through the sealant, so the convection heat loss is very small, glass and window frame heat conduction is the main cause of the loss. For large area glass and a small amount of window frame profiles, effective measures in material and form can greatly improve the energy-saving effect. In terms of structure, the fixed window is an ideal window type for energy saving.
Disadvantages
The disadvantage of fixed window is that it can not be ventilated, so, also in fixed window installed small up or down down window, or in the large fixed window installed on one side of a small flat window, as regular ventilation, use.
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