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Pitched Roof Formula:
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Pitched square footage refers to the actual surface area of a sloped roof, which is larger than the footprint of the building. This measurement is essential for accurately estimating roofing materials needed for installation or replacement.
The calculator uses the pitched roof formula:
Where:
Explanation: This calculation gives you the actual surface area of the pitched roof section, accounting for the slope rather than just the footprint.
Details: Accurate pitched square footage calculations are crucial for ordering the correct amount of roofing materials, estimating project costs, and ensuring proper installation without material shortages or excess waste.
Tips: Measure the length along the eave and the sloped width from eave to ridge. Enter both measurements in feet. All values must be positive numbers.
Q1: What's the difference between pitched sq ft and footprint sq ft?
A: Footprint sq ft measures the horizontal area covered by the roof, while pitched sq ft measures the actual sloped surface area, which is always larger.
Q2: How do I measure sloped width accurately?
A: Use a measuring tape along the slope from the eave to the ridge. For safety, consider using a laser measure or consulting a professional for steep roofs.
Q3: Should I add extra for waste when ordering materials?
A: Yes, typically add 10-15% extra to account for cutting waste, pattern matching, and potential errors in measurement.
Q4: Does this calculation work for all roof types?
A: This formula works for simple gable roofs. Complex roofs with multiple valleys, hips, or dormers may require breaking into sections and calculating each separately.
Q5: How does roof pitch affect material requirements?
A: Steeper pitches require more surface area coverage and may need additional fastening materials or different installation techniques.