waterproofing

American  

[waw-ter-proo-fing, wot-er-] / ˈwɔ tərˌpru fɪŋ, ˈwɒt ər- /

noun

1. a substance by which something is made waterproof.

2. the act or process of making something waterproof.

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Etymology

Origin of waterproofing

First recorded in 1835–45; waterproof + -ing ¹

Example Sentences

The combination will bring together QXO’s leading positions in roofing, waterproofing, lumber-related building materials, and associated products with TopBuild’s insulation capabilities.

From The Wall Street Journal • Apr. 20, 2026

Seabirds are especially at risk because oil destroyed the waterproofing of their feathers, leading to hypothermia and drowning.

From Barron's • Mar. 17, 2026

To answer those questions, the research team examined previously unstudied materials recovered with the vessel, including cordage and waterproofing caulk.

From Science Daily • Feb. 16, 2026

Indigenous people and Spanish settlers utilized the viscous goo for medicinal purposes and waterproofing boats.

From Los Angeles Times • Feb. 15, 2026

Concrete, as it is ordinarily made, is pervious to water, hence to secure concrete structures through which water will not penetrate some method of waterproofing the concrete must be employed.

From Concrete Construction Methods and Costs by Gillette, Halbert Powers