V2EX vapor barrier

Vapor Barrier

释义 Definition

vapor barrier(防潮层/隔汽层):建筑构造中用于阻止水蒸气扩散进入墙体、屋顶等围护结构的材料层,以减少结露、霉变和保温材料受潮失效的风险。(在不同气候与构造中,安装位置与是否需要会有差异。)

发音 Pronunciation (IPA)

/vepr brir/

例句 Examples

We installed a vapor barrier behind the drywall.
我们在石膏板后面安装了防潮层。

In cold climates, placing a vapor barrier on the wrong side of the insulation can trap moisture and cause condensation inside the wall.
在寒冷气候中,如果把隔汽层放在保温层的错误一侧,可能会把水汽困在墙体里,导致内部结露。

词源 Etymology

vapor 来自拉丁语 vapor,意为“蒸汽、气雾”;barrier 源自法语 barrière,意为“障碍物、阻隔”。合起来直译就是“阻隔水蒸气的层/屏障”,属于建筑物理与施工领域的复合名词。

相关词 Related Words

文学与著作中的用例 Literary & Notable Works

  • ASHRAE HandbookFundamentals(美国采暖制冷空调工程师学会手册基础卷)
  • Joseph Lstiburek 等:Builder’s Guide(建筑围护结构与防潮/隔汽策略常见指南系列)
  • The Illustrated Guide to Building Codes(建筑规范图解类著作中常在围护结构章节出现该术语)
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