Unverified85% confidenceFactTime unknown
遮光贴的漏光主要来自四周缝隙而非贴片本体，实际全黑效果取决于是否比窗口每边多出3-5cm的覆盖余量并做边缘密封，选购时尺寸应大于窗玻璃可视区
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85%
Confidence
Long-term
Relevance
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Unverified全遮光卷帘无法避免窗框四周的漏光缝隙（一般左右各漏光1-2cm），追求全黑必须配轨道侧封或选择尺寸略大于窗户的外装方式88% similarUnverified遮光率标称高低不等于全黑，全遮光效果还取决于窗帘四周是否漏光——需窗帘宽度为窗户2倍做褶皱、两侧超出窗框15cm以上、顶部加遮光盒或帘头挡住上方缝隙87% similarUnverified遮光率与漏光是两回事：即使布料100%遮光，帘布与墙面间隙、罗马杆顶部、两侧边缘仍会漏光，全黑环境需搭配封闭式窗帘盒或L型侧挡+超出窗框15cm以上85% similarUnverified全遮光面料因带涂层会在窗帘四周和安装侧边留下漏光缝隙，若追求极致全黑需搭配侧轨（导轨）安装或选择外装超窗宽10cm以上的方式，普通内装全遮光卷帘仍会有边缘漏光85% 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84% similar
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