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Homes built on a crawl space may benefit from a radon collector installed under a "radon barrier, or membrane" (a sheet of plastic or laminated polyethylene film that covers the crawl space floor). ASTM E-2121 is a standard for reducing radon in homes as far as practicable below 4 picocuries per liter (pCi/L) in indoor air. [111] [112]
During mold remediation in the U.S., the level of contamination dictates the protection level for remediation workers. [24] Contamination levels have been enumerated as I, II, III, and IV: [citation needed] Level I: Small, isolated areas (10 square feet (0.93 m 2) or less); remediation may be conducted by trained building staff;
Water seepage in basement and crawl spaces usually occurs over long periods of time and can be caused by numerous factors. Concrete is one of the most commonly used materials in home construction. When pockets of air are not removed during construction, or the mixture is not allowed to cure properly, the concrete can crack, which allows water ...
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A crawl space or crawlspace is an unoccupied, unfinished, narrow space within a building, between the ground and the first (or ground) floor. The crawl space is so named because there is typically only enough room to crawl rather than stand; anything larger than about 1 to 1.5 metres (3 ft 3 in to 4 ft 11 in) and beneath the ground floor would ...
Genoa Park is a 2.07-acre (0.84 ha) urban park along the west bank of the Scioto River in Columbus, Ohio, United States.The park, located between Broad and Rich Streets as part of the Scioto Mile park grouping, is named after Genoa, the birthplace of Christopher Columbus and one of Columbus' sister cities. [1]
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