moisture barrier

[/ˈmɔɪstʃər ˈbæriər/]
nounpl: moisture barriers
barreira de umidade
1. A material or coating designed to prevent or reduce the passage of moisture, water vapor, or liquid water through a surface or structure
The moisture barrier in the wall prevents water from seeping into the insulation during heavy rain.
A barreira de umidade na parede impede que a água se infiltre no isolamento durante chuvas fortes.
2. In skincare and cosmetics, a protective layer applied to the skin to retain hydration and prevent moisture loss
Apply a moisture barrier serum at night to keep your skin hydrated.
Aplique um sérum de barreira de umidade à noite para manter sua pele hidratada.
3. In construction and building materials, a layer that protects structural components from water damage and dampness
A proper moisture barrier is essential in basement construction to prevent flooding.
Uma barreira de umidade adequada é essencial na construção de porões para evitar inundações.
In Brazil, moisture barriers are particularly important due to tropical climate conditions and high humidity. The term is widely used in construction industry, especially in coastal areas and regions with heavy rainfall. In skincare, 'barreira de umidade' has become increasingly popular in Brazilian beauty and dermatology vocabulary due to the growing K-beauty and Asian beauty influence. In the USA, particularly in humid regions, moisture barriers are a standard construction requirement in building codes.
Synonyms / Sinônimos
vapor barrierdamp-proof membranewaterproof barriermoisture sealhydrophobic barrier
Antonyms / Antônimos
moisture conductorabsorbent materialpermeable membrane

Regional Variations

General Brazilian
barreira de umidade
Standard term used in construction, skincare, and general contexts
São Paulo
barreira anti-umidade
Common variant emphasizing the protective function against moisture
General Portuguese
barreira de humidade
Portuguese variation using 'humidade' instead of 'umidade'
Technical/Industrial
membrana impermeável
More formal technical term used in engineering specifications

Related Words

damp-proof coursewaterproofingvapor permeablehydrophobiccondensationimpermeabilitysealantprotective coating

Related Idioms & Phrases

seal out the moisture
create a moisture barrier
break the moisture barrier
moisture-proof construction
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