Roof Cost Formula:
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Definition: This calculator estimates the total cost of an asphalt shingle roof based on roof size, material cost per square, and labor costs.
Purpose: It helps homeowners and contractors budget for roofing projects using asphalt shingles.
The calculator uses the formula:
Where:
Explanation: The roof size is multiplied by material cost per square, then labor costs are added to get the total project cost.
Details: Accurate cost estimation helps with budgeting, financing, and comparing contractor bids for roofing projects.
Tips:
Q1: What is a "square" in roofing terms?
A: One square equals 100 square feet of roof area, the standard measurement unit in roofing.
Q2: What affects the price per square?
A: Shingle quality (3-tab vs. architectural), underlayment type, and regional material costs.
Q3: How do I estimate my roof size in squares?
A: Measure your home's footprint (length × width), multiply by roof pitch factor (1.1-1.5), then divide by 100.
Q4: Does this include removal of old roofing?
A: No, tear-off costs are additional. Add 15-25% to labor costs if removing old shingles.
Q5: How accurate is this estimate?
A: It provides a baseline estimate. Get multiple quotes for precise pricing in your area.