To determine which roof type provides a cost benefit over a 30-year period, we would typically need specific cost data for each roof type over that time frame. Since the options provided give benefits in dollar amounts per square foot, the best way to assess the correct response is to evaluate the differences in those benefits.
From the options:
- 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
To find a cost benefit, we would compare the second and third options directly.
- If both options give a benefit of $40, then they are equal in terms of cost benefits.
- However, if we consider the Green Roof with a benefit of $50 per square foot, this indicates that the Green Roof offers a higher net benefit over its lifespan.
Therefore, the correct answer would be:
Green Roof, benefit of $50 per square foot
1 answer