Is it unnecessary to choose tempered glass when the single glass is less than 1.5 square meter? Theoretically, it is possible, and there is no hard and fast requirement. However, from the perspective of long-term use, safety and after-sales maintenance cost, it is more cost-effective to choose all-tempered glass than ordinary glass; At the same time, even if the tempered glass bursts, it is small particles, which are not easy to hurt people and are safe and secure.
Increase the probability of glass bursting, and the after-sales maintenance cost is high. Suppose your window is only 10 square meter. If you choose double-layer tempered glass, you only need to spend more than 600 yuan on the basis of the purchase cost of the window. But in case the glass bursts, it will cost at least 500 yuan to replace a small glass, plus labor and freight.
From the perspective of safety, especially for high-rise buildings, tempered glass must be selected. We know that the higher the floor, the stronger the wind, and the higher the wind pressure resistance of window glass. Therefore, the window glass of high-rise buildings must choose tempered glass, one of which is that French window glass needs tempered glass more.