Unverified82% confidenceTradeoffTime unknown
遮光率越高越闷热：黑胶三层涂层遮光99%但几乎不透气，夏季密闭空间内易升温闷汗，通风好的天幕开放场景可接受，密闭内帐建议搭配透气网纱段
1
Sources
82%
Confidence
Long-term
Relevance
-
First Seen
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Unverified遮光率与透气性矛盾：全遮光（黑胶+高密度）天幕闷热不透气，夏季在其下方长时间停留易积热，建议搭配侧面敞开或选带透气顶设计的款式90% similarUnverified遮光率与透气性存在矛盾，全黑胶涂层遮光最好但完全不透气，夏季长时间遮光会闷热，需要通风时选带网纱透气孔的半遮光款88% similarUnverified遮光隔热夏季降温方案：外层选浅色反射面料+内层黑丝遮光的三层结构，西晒房间可再叠加窗外遮阳，比单纯厚窗帘隔热效果好（室温可降2-4度）87% similarUnverified深色面料（黑/深灰）挡光和防晒性能通常优于浅色，但吸热更明显；夏季高温建议选外浅内深或带反光涂层的双层结构，兼顾遮光与隔热87% 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86% similar
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