damp-proof

British  

verb

1. to protect against the incursion of damp by adding a dampcourse or by coating with a moisture-resistant preparation

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adjective

1. protected against damp or causing protection against damp

   a damp-proof course

Example Sentences

Sir Peter also says ministers may need to tighten building regulations to ensure that at-risk homes are properly protected - say, by raising plugs, fuse boxes and damp-proof courses.

From BBC • Oct. 10, 2016

Never carry all your supply of matches about your person, have a few, even though only a half dozen, in some damp-proof article amongst your blankets.

From Canadian Wilds Tells About the Hudson's Bay Company, Northern Indians and Their Modes of Hunting, Trapping, Etc. by Hunter, Martin

A damp-proof course has been introduced consisting of a thin sheet of lead sandwiched between layers of asphalt.

From Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" by Various

This is accomplished by putting under the foundation a solid bed of concrete, and under the foundation walls damp-proof courses.

From The Home Medical Library, Volume V (of VI) by Winslow, Kenelm

The base of the cavity should be taken down a course or two below the level of the damp-proof course.

From Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" by Various