1. What is Roof Slope Pitch Degree?

Roof slope pitch degree represents the angle of a roof surface measured in degrees, calculated from the pitch ratio (rise over run). It's essential for proper drainage, material selection, and structural design in construction.

2. How Does the Calculator Work?

The calculator uses the roof slope formula:

Where:

• \( Pitch \) — Roof pitch (rise in inches per 12 inches of run)
• \( \arctan \) — Inverse tangent function
• \( \frac{180}{\pi} \) — Conversion factor from radians to degrees

Explanation: The formula converts the pitch ratio (rise/run) to an angle in degrees using trigonometric principles.

3. Importance of Roof Slope Calculation

Details: Accurate roof slope calculation is crucial for proper water drainage, material compatibility, structural integrity, and compliance with building codes and manufacturer specifications.

4. Using the Calculator

Tips: Enter the roof pitch as inches of rise per 12 inches of run (e.g., 4 for a 4:12 pitch). The value must be greater than 0.

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between pitch and slope?
A: Pitch is typically expressed as a ratio (e.g., 4:12) while slope can be expressed as a ratio, percentage, or angle in degrees.

Q2: What are common roof pitch ranges?
A: Flat roofs: 0-2:12, Low slope: 2-4:12, Conventional: 4-9:12, Steep slope: 9:12 and above.

Q3: Why is roof pitch important for material selection?
A: Different roofing materials have minimum pitch requirements for proper water shedding and installation.

Q4: How does roof pitch affect drainage?
A: Steeper pitches provide better water drainage and reduce the risk of leaks and water accumulation.

Q5: Can this calculator be used for other slope calculations?
A: Yes, the same formula applies to any slope calculation where you need to convert a rise/run ratio to degrees.