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Two pieces of hard cray-like material (still scratchable with iron nail). 4inches long and 1.4inch wide, weight about 100gr. Found hidden under an old roof (under a tile) : r/whatisthisthing
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Klaus Roofing Systems by Quality 1st - Roof Replacement Photo Album - Old Slate Roof Replaced In Trenton, NJ
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Week of July 31st -My Sisters Visit, Rip Off The Old Roof, Garden Jackpot, Lots of New Friends and "What Am I" - Friends of Seguin Island Light Station
![Had solar panels installed on a 2-year-old roof. Discolored spots appeared a few months later. Installers insist it's because roof is defective. Anyone have something similar happen? : r/solar Had solar panels installed on a 2-year-old roof. Discolored spots appeared a few months later. Installers insist it's because roof is defective. Anyone have something similar happen? : r/solar](https://preview.redd.it/eicnayul2uo81.jpg?width=640&crop=smart&auto=webp&s=cfe30f433909d73c175f555b6e1abbd5dd13344f)
Had solar panels installed on a 2-year-old roof. Discolored spots appeared a few months later. Installers insist it's because roof is defective. Anyone have something similar happen? : r/solar
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