customized aluminium windows At present, there are many soundproof doors and windows products on the market. If you want to make the indoor soundproof doors and windows products have a long service life, you must pay attention to the selection and maintenance of soundproof doors and windows. Finally, how to choose and maintain soundproof doors and windows? Take a look at the following: How to choose and maintain soundproof doors and windows; 1. How to purchase soundproof doors and windows companies: 1. The weight of the door panel: The effect of the soundproof door is directly related to the density of the material, so the higher the density, the better the sound insulation effect, and the sound insulation effect is relatively better. 2. The thickness of the door panel: The thicker the sound insulation effect of the surface board, the general wooden door surface board should be 8mm thick, and the surface board thickness is also better, but the cost will increase, but: the iron plate fire door surface iron is 3mm thick, and the sound insulation effect is also good. white sliding patio door residential entry door systems picture windows home depot custom glass accordion doors