Roof Requirements for a Solar PPA: Age, Material, Pitch, and Orientation

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A qualifying roof for a New Jersey solar PPA must have at least 8 to 10 years of remaining structural lifespan, support standard dead-load weight (approx. 2.8 to 3.5 lbs per sq ft), have at least 400 to 600 contiguous square feet of unshaded space facing South, South-West, or West, and feature approved materials such as architectural asphalt shingles or metal.