Unverified90% confidenceDecision RuleTime unknown
真正的遮光关键在于窗帘四周的漏光而非布料本身：需帘布左右各超出窗框15-20cm、顶部用箱式帘头或吊顶暗轨，底部离地1-2cm，否则再高遮光率也漏光成框
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90%
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Long-term
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Unverified全遮光的关键在于封边而非布料本身：顶部漏光需加装遮光盒/窗帘盒或布帘高出窗框15cm以上，两侧需超出窗框各15-20cm，否则四周仍会透光94% similarUnverified追求遮光率不能忽视透光边缘：即使布料100%遮光，窗帘与墙面间隙、顶部漏光仍会大量透光。需搭配轨道弯头包边或加宽帘布至窗户两侧各20cm以上，顶部用箱式帘头或安装到天花板94% similarUnverified遮光要真正做满需侧封+顶封+底部加长：布料两侧回墙、罗马杆改暗轨盒、帘底超过窗台20cm以上，否则光从边缝溢出仍不算全遮光93% similarUnverified遮光要彻底必须解决四周漏光：窗帘宽度做窗户1.5-2倍并两侧超出墙面各15-20cm，顶部用罗马杆无缝或加装帘头盒挡顶光，否则布再黑边缘仍漏光93% similarUnverified窗帘遮光要靠边缘密封而非布料本身，四周漏光会大幅降低实际遮光效果；追求全黑应选罗马杆两侧超出窗框15cm以上、底部拖地或过窗台20cm，或加装遮光盒/侧封条92% similar
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