Unverified85% confidenceDecision RuleTime unknown
购买前用总面积÷单片有效覆盖面积并额外加15%损耗量，砖纹拼接需对花对缝，实际利用率低于标称面积
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Unverified计算购买数量时需按实际面积额外增加10%-15%损耗量，用于裁切边角、对花和阴阳角包边80% similarUnverified几何拼接类立体墙饰（六边形/菱形模块）购买时应额外多购10%-15%数量作损耗和补拼，因单块尺寸误差在拼接大面积时会累积错位，且同批次色差小、后期难补货74% similarUnverified大理石纹和大幅面几何图案对花困难，接缝处需预留2-3cm用于对齐图案，购买时应按实际面积多买15-20%损耗量74% similarUnverified覆盖面积按理论涂布率折算：多数防霉乳胶漆理论涂布率10-12㎡/L/遍，实际需刷两遍并预留15%损耗，估算用量应按'面积÷5×1.15'计算实涂容量74% similarUnverified计算用量时竖条纹损耗率高于普通壁纸：无对花约需加5%，有明显重复图案的对花条纹需加10%~15%，因为每卷需按花型起始位置裁切73% similar
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