Unverified87% confidenceDecision RuleTime unknown
门缝密封决定隔音下限：门四周须有磁吸密封条+门底自动升降密封条（落地密封条），仅靠门扇厚度而无底部密封，实际隔音会损失5-10dB
1
Sources
87%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified门缝密封性对隔音的影响权重超过门芯本身，门底缝隙3mm以上可使整体隔音下降5-8dB，选购必须确认门套四周有磁性密封条+门底自动升降密封条（落地密封条）93% similarUnverified门缝密封处理比门芯材料对隔音的影响更大：门框四周需加装磁性密封条或双层橡胶密封条，门底必须加装自动升降门底(落地密封条)，否则单靠门芯隔音会打七折91% similarUnverified隔音门的实际隔音效果70%取决于门缝密封而非门板本身，门框四周需带磁性密封条+门底自动升降密封条（落地条），否则标称40dB也漏音严重88% similarUnverified磁吸式或套入式防夹条虽无胶不脱落，但会略增门缝阻力，对自动闭门的门可能导致关不严，需确认门与门框间隙足够容纳厚度87% similarUnverified需要隔音降噪的选带自动升降机构的门底密封条（开门抬起、关门下压），密封面完全贴地可降低3-8分贝，普通粘贴式因摩擦会留缝隙隔音效果有限86% similar
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