Unverified88% confidenceDecision RuleTime unknown
顶布UPF≥50+且带涂银或PU涂层的遮阳棚才能有效阻隔紫外线并遮挡直射日光，普通无涂层200D牛津布仅遮光不遮热，正午使用棚下仍闷热
1
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88%
Confidence
Long-term
Relevance
-
First Seen
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Unverified遮阳棚布UPF≥50+才能有效阻挡紫外线，普通牛津布仅遮光不防晒，长时间照射下棚内地面温度仍会升高，需选带银胶或聚酯涂层的面料91% similarUnverified遮阳天幕的实际防晒能力看涂层而非布料本身，认准银胶(涂银)涂层UPF50+且遮光率≥95%，仅标注UPF50+但为PU涂层的产品在正午阳光下地表温度仍会明显偏高88% similarUnverified遮阳布UPF值≥50+才能阻挡98%以上紫外线；同时优先选择遮光涂层（黑胶/银胶）款，普通防泼水面料在正午阳光下棚下温度仅比棚外低3-5℃，黑胶涂层可降8-10℃87% similarUnverified遮阳率优先看UPF值，UPF50+可阻挡98%紫外线；但高遮阳率银胶面料透气差，夏日午间围合后内部闷热，需搭配可开合通风口84% similarUnverified网纱材质遮光率有限（约60%），强烈日晒下防紫外线和隔热效果不如全遮光款84% similar
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