Roof Cost Formula:
From: | To: |
Definition: This calculator determines the cost of an asphalt roof installation per square foot based on material quantity, price, labor costs, and total roof area.
Purpose: It helps homeowners and contractors estimate roofing costs and compare pricing between different roofing options.
The calculator uses the formula:
Where:
Explanation: The total material cost (quantity × price per square) plus labor cost is divided by the roof area to determine cost per square foot.
Details: Accurate cost estimation helps with budgeting, comparing contractor bids, and understanding the value of different roofing materials.
Tips: Enter the roofing quantity in squares (1 square = 100 ft²), price per square, total labor cost, and roof area in square feet.
Q1: What is a "square" in roofing terms?
A: In roofing, 1 square equals 100 square feet of roof area. It's a standard unit of measurement for roofing materials.
Q2: How do I estimate labor costs?
A: Labor costs vary by region but typically range from $1.50 to $3.00 per square foot or $150-$300 per square.
Q3: What affects the price per square?
A: Factors include shingle quality (3-tab vs. architectural), underlayment type, and any special features like ice/water shield.
Q4: Should I include removal costs?
A: Yes, if removing old roofing, include these costs in the labor cost field for accurate total project pricing.
Q5: How accurate is this estimate?
A: This provides a baseline estimate. Actual costs may vary based on roof complexity, location, and material availability.