EPiC database - Double glazing - toughened glass

This material is part of the free Environmental Performance in Construction (EPiC) Database. The EPiC Database contains embodied environmental flow coefficients for 250+ construction materials using a comprehensive hybrid life cycle inventory approach.Double glazing - toughened glass is a glazing system that combines two sheets of toughened glass separated by a sealed gas-filled cavity. These systems are also commonly referred to as insulated glass units (IGU). An aluminium spacer is used to separate the glass panes, attached to the glass with an adhesive. The cavity is then filled with an inert gas. Argon, xenon and krypton are the most commonly used gases. The double glazed system is typically used to improve the acoustic or thermal performance of a window. The thickness of each glass pane generally ranges from 3 to 10 mm and the gas-filled cavity typically ranges from 6 to 12 mm. The same glass thickness is usually used for both panes, but in some circumstances the thickness may vary. Laminated or flat glass can also be used in place of toughened glass. Toughened glass is used where additional strength is required or there is increased risk of damage. Various coatings (such as low-e) can also be applied to the glass surfaces to improve its thermal, acoustic or privacy characteristics.

本资料隶属于免费的建筑环境绩效（EPiC）数据库。该数据库包含利用全面混合生命周期清单方法得出的250多种建筑材料的固有权流系数。双层玻璃——即强化玻璃系统，系由两层强化玻璃通过密封的充气腔隙相隔而成的一种玻璃装配方式。此类系统亦常被称为隔热玻璃单元（IGU）。铝制间隔条被用于分隔玻璃板块，并采用粘合剂将其固定在玻璃上。随后，腔隙内填充惰性气体。氩气、氙气和氪气是最常用的气体。双层玻璃系统通常用于提升窗户的声学或热学性能。每片玻璃的厚度通常介于3至10毫米之间，而充气腔隙的厚度通常介于6至12毫米之间。通常，两片玻璃的厚度相同，但在某些情况下，厚度可能会有所不同。层压或平板玻璃也可替代强化玻璃使用。强化玻璃用于需要额外强度或存在损坏风险增加的场合。此外，还可将各种涂层（如低辐射率涂层）应用于玻璃表面，以改善其热学、声学或隐私特性。