Question

Which roof type provides a cost benefit over a 30 year period and how much is that benefit? (HINT: find the difference between the 30 yr costs)

Traditional Roof

Green Roof

Initial Installation

$30.00 per square

$35.00 per square

foot

foot

Care and Maintenance

$25.00 per square

$30.00 per square

foot

N / A

foot

Savings from Insulating Effect

$5.00 per square

foot

Reduction in Repair Costs

N/A

$10.00 per square

foot

Replacement Cost

$35.00 per square

foot

N/A

Traditional Roof 30+25+35=\$ 90 / s * qft

Green Roof 35+30-5-10=\$ 50 / s * qft

(1 point)

Traditional Roof, benefit of $40 per square foot

Green Roof, benefit of $40 per square foot

Green Roof, benefit of $50 per square foot

Both roof types provide equal benefits

Answer 1

Green Roof provides a cost benefit of $40 per square foot over a 30 year period compared to the Traditional Roof.