Unverified85% confidenceTradeoffTime unknown
遮光率与采光/闷热存在权衡：99.9%全遮光布拉开前室内白天全黑但完全拉上会显闷，建议卧室采用'纱帘+遮光布'双层方案，白天用纱帘透光通风、夜间用遮光布，避免只装单层全遮光
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified约70%遮光率为网纱透气型，遮阳降温效果弱于全遮光硬帘，追求午睡全暗环境的慎选86% similarUnverified遮光率≥90%（三级遮光）适合客厅普通需求，卧室建议遮光率≥99%（全遮光）搭配涂层布或高密植绒面料，才能实现白天午睡的黑暗环境86% similarUnverified对午睡/夜班人群，遮光+保温可叠加做双层：内层高遮光布外层装饰纱，夏季高遮光涂层布还可反射阳光降低室内温度2-3℃，兼顾遮光与节能85% similarUnverified遮光与通风不可兼得：全遮光卷帘完全放下时几乎不透气，夏季密闭卧室易闷热；若既要午睡遮光又要通风，可考虑上下双向卷帘（day-night/斑马帘）实现分段调节84% similar
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