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Can a roof keep water out, regulate temperature, allow vapor to escape—and power your entire home? Build Expert™ Jordan Smith takes us deep into the design and execution of what might just be the “perfect roof.” At the center: a full Tesla solar shingle system paired with Powerwall 3 batteries, powering an entire Texas property—including house, barn, apartment, and well. In addition to the flashy technology, Jordan walks through every layer of the roof assembly—from exposed Douglas fir rafters and structural decking to Rockwool insulation, Tesla’s proprietary membrane, and ventilated rain screens. He discusses the cost, challenges, and performance of Tesla’s all-in-one system and shares why choosing the right installer (like Kayco Post in Texas) makes all the difference. With air gaps that cool the roof, smart drainage detailing, and months of $0 power bills, this build blends building science with modern electrification in a way few systems can.