Unverified85% confidenceTradeoffTime unknown
遮光率与透气性存在权衡：三层涂银遮光率可达99%但夏天易闷热、久用涂层易脱落粉化；日常卧室选高密度织造遮光布（遮光90%左右）在遮光和透气间更平衡
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85%
Confidence
Long-term
Relevance
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Unverified全遮光黑丝面料透气性差、夏季易积热且颜色偏暗；三层织造遮光布（非涂层）遮光率约85-95%但透气保色更好，卧室日常用三层织造已足够86% similarUnverified夏季隔热需求应关注遮光布的涂层反射性能：涂银（反光层）比涂黑更能反射太阳辐射热，西晒房间选涂银遮光布可降低室内升温幅度84% similarUnverified遮光率越高通常越厚重、越不透气，夏季易积热且拉开时占位大；南向或西晒房间可选95%遮光但搭配纱帘分层，无需追求100%遮光牺牲通风和采光灵活性84% similarUnverified西晒/东晒房间夏季隔热优先选带涂层的遮光布，可反射部分热辐射降低室温2-3度；单纯高密提花布遮光好但隔热弱83% similarUnverified遮光与保温/隔热正相关：三层遮光布可反射阳光辐射热，夏季西晒房间室温可降2-4度，兼具节能作用，西晒户型优选高遮光83% similar
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