Definition of vapor barrier in English:

vapor barrier

Syllabification: va·por bar·ri·er

Entry from US English dictionary

noun

A thin layer of impermeable material, typically polyethylene sheeting, included in building construction to prevent moisture from damaging the fabric of the building.

Definition of vapor barrier in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day keek
Pronunciation: kiːk
verb
peep surreptitiously