Unverified86% confidenceTradeoffTime unknown
透光率(VLT)与隔热常成反比：客厅采光需求高选VLT 40%-60%的膜，卧室/影音室可选VLT 20%以下换取更强遮光隔热
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86%
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Long-term
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Unverified透光率(VLT)与遮光需求：客厅采光区选VLT≥50%的高透膜避免变暗，卧室/卫生间隐私区可选VLT 15-30%的深色膜，VLT低于10%的膜白天室内需常年开灯92% similarUnverified追求完全遮光（卧室/影音房）选可见光透过率VLT≤1%的全遮光铝箔膜，透光率5%以下的膜仍会在白天透出明显光晕75% similarUnverified隔热率越高通常透光率越低、颜色越深，'高隔热+高透光'需靠溅射工艺实现且价格翻倍；卧室可选深色高隔热膜，客厅需兼顾采光则透光率不宜低于50%73% similarUnverified客厅、书房等需采光的空间，透光率应≥60%，避免选深色金属膜导致白天需常开灯；朝西晒的房间可牺牲部分透光换取隔热系数（遮阳系数SC≤0.5）72% similarUnverified遮光/透光需权衡：透光率越低越遮光越隐私，但白天室内越暗需常年开灯；书房、客厅等需要采光的空间选透光率30-50%的中度膜，卧室才用低透光膜71% similar
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