Unverified82% confidenceDecision RuleTime unknown
布料克重≥300g/㎡的高密度涤纶或加厚绒布才有明显隔音效果（可降噪3-8分贝），薄款遮光布几乎无隔音作用；临街或近马路房间应选克重≥400g/㎡的加厚植绒布
1
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82%
Confidence
Long-term
Relevance
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Unverified布料克重是质感关键指标：涤纶遮光布常见220-300g/㎡，300g以上垂坠感与遮光更好；仿麻/棉麻低于180g易透光且褶皱不挺84% similarUnverified克重400g/㎡以上的厚绒布/雪尼尔垂坠饱满且有一定隔音，克重200g以下的雪纺/棉麻薄纱轻飘适合做纱帘搭配81% similarUnverified涤纶（聚酯纤维）遮蔽帘克重通常80-150g/㎡，克重越高垂感和遮光越好；100g/㎡以上适合固定遮挡，60g/㎡以下适合轻薄防尘81% similarUnverified布料克重方面，牛津布类300D-600D兼顾遮光耐咬与透气，涤纶遮光绒克重约200-300g/㎡遮光率可达90%以上但透气差；家用安抚推荐600D牛津布带透气网81% similarUnverified聚酯纤维吸音棉密度需≥30kg/m³且厚度≥5cm才对中低频有效，密度过低（如廉价包装海绵）仅衰减2kHz以上高频79% similar
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