Tyler Showing how to take a core sample out of a roof ( also known at Best Roofing as a "roof cookie!")
Core samples consist of cuts through the roof membrane down to the roof deck. The sample provides an absolute test of moisture content and location. The core cut also permits the constituents of the roof system, and their condition, to be determined. Core samples may be weighed, dried and re-weighed to provide a quantitative measure of moisture content.
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