Unverified80% confidenceDecision RuleTime unknown
斜屋顶天窗的安装坡度必须在15°-90°范围内,坡度低于15°易积水渗漏,多数品牌标准型号仅支持15°-90°,超平坡度(<15°)需选平顶专用型号并加装强制排水
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