Does anyone know what these metal tools in the bottom left of the photo are? I found them in my crawlspace and to me they look like some sort of medieval torture device.
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Crawl space encapsulation methods must include protection from ground water entry. Exposed earth in unvented crawl space foundations shall be covered with a continuous, minimum 6-mil polyethylene vapor retarder (2012 IRC Section R408.2) and it must be a Class I vapor retarder (IRC 2012 – N1102.1.10). Vapor barriers should be secured to the ground floor, covering any exposed dirt. Joints must overlap no less than 6 inches, and all seams must be taped (Source: 2015 IRC - Section 408.3.1).