Unverified90% confidenceDecision RuleTime unknown
隔音窗真正决定隔音效果的是气密性等级（需达到国标8级）+开启方式，而非单纯玻璃层数。平开窗气密性远优于推拉窗，同配置下平开比推拉隔音高5-8dB
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90%
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Long-term
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Unverified隔音效果排序为：固定窗 > 平开窗 > 推拉窗；推拉窗因上下轨道有缝隙气密性差，同等玻璃配置下比平开窗隔音低约5-8dB，追求安静首选平开窗85% similarUnverified推拉窗因搭接结构存在缝隙，隔音天生弱于平开窗，实测同配置下推拉窗隔音约低5-8分贝；临主干道需隔音时应选5+12A+5或以上中空玻璃并加装毛条+胶条双密封，隔音要求高（≥35dB）应直接放弃普通推拉窗82% similarUnverified整窗隔音效果取决于最薄弱环节，型材气密性达到国标8级、水密性6级以上才能保证玻璃隔音性能不被密封漏洞抵消82% similarUnverified叠装（在原窗内侧加装一层）比整窗更换隔音效果更好，因两层窗中间形成较大空气层（100mm以上）对低频衰减显著，实测可比单纯换窗多降5-10dB，适合原窗尚可但噪音严重的场景78% similarUnverified隔音效果有限，如果主要诉求是降低窗外噪音，需要搭配密封窗或选择多层加厚窗帘方案76% similar
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