Unverified85% confidenceFactTime unknown
门芯填充材料决定隔音下限：纸质蜂窝（模压门）几乎无隔音，实心刨花板/密度板约25-28dB，专业隔音棉+多层复合结构可达35dB以上，铅板/复合钢结构入户门可达40dB
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Unverified门芯填充直接决定隔音下限：空心蜂窝纸约15-20dB仅遮视线，隔音棉/岩棉填充约25-32dB，实木或多层复合门芯约30-38dB91% similarUnverified门芯材料隔音排序：多层实木/密度板复合＞岩棉+隔音棉填充＞纯蜂窝纸；蜂窝纸门芯轻便廉价但隔音仅25dB左右，重量＜15kg的室内门普遍是蜂窝结构89% similarUnverified有效隔音墙需要复合结构：轻钢龙骨+隔音棉（岩棉/玻璃棉，密度≥48kg/m³）+双层错缝石膏板+隔音毡，总厚度约7-10cm，隔声量可提升15-25dB；单一薄板材无法达到理想效果86% similarUnverified隔音门门芯密度越高越重隔音越好：实木门芯或多层复合(如岩棉+石膏板+钢板)隔音优于蜂窝纸/空心门，单扇门重量达到25-40kg以上才具备真正隔音能力82% similarUnverified薄型隔音毡（如3-5mm沥青/EVA基材）面密度约3-6kg/m²，隔声量约22-28dB，主要用于叠加复合墙体而非单独使用；聚酯纤维吸音板常见规格9mm厚、密度约180-300g/m²，NRC约0.15-0.35（依安装方式和背后空腔提升）82% similar
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