$50-60 sq ft is probably 3x too high. A bundle of shingles is $50, 3 bundles to cover 100 sq ft is $1.50 sq ft in materials. Figure $1.50/sq ft to demo and dis

$50-60 sq ft is probably 3x too high. A bundle of shingles is $50, 3 bundles to cover 100 sq ft is $1.50 sq ft in materials. Figure $1.50/sq ft to demo and dispose of the old roof shingles. Materials and demo comes out to $3,000, figure $500 for tools and nails, mark it up to $4,500-5,000 Probably (4) people can knock out a 1000sq ft roof in an 8 hour day, call it 40 hours of labor for demo and install. Surely the labor cost and markup is not $1,000 an hour, that’s what it would have to be for a 1000 sq ft roof to cost $50-60k. $125/hr for 40 hours is $5,000.00