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Ridge Board Height Formula:
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Ridge board height refers to the vertical measurement from the top plate of the wall to the top of the ridge board in a roof structure. It is a critical dimension in roof framing that determines the roof's slope and overall height.
The calculator uses the ridge board height formula:
Where:
Explanation: The formula calculates the vertical height of the ridge board based on half the span and the tangent of the pitch angle, which represents the roof's slope.
Details: Accurate ridge board height calculation is essential for proper roof construction, ensuring structural integrity, proper drainage, and aesthetic proportions. It helps determine material requirements and overall building height.
Tips: Enter the total span in meters and the pitch angle in degrees. Both values must be positive numbers. The calculator will compute the ridge board height in meters.
Q1: What is the difference between span and run?
A: Span refers to the total horizontal distance between the outside edges of the supporting walls, while run is half the span (distance from wall to centerline).
Q2: How does pitch affect ridge height?
A: Higher pitch angles result in taller ridge heights for the same span, while lower pitches produce shorter ridge heights.
Q3: Can this calculator be used for different units?
A: The calculator uses meters, but you can convert from other units (feet, inches) by ensuring all measurements are in consistent units.
Q4: What is a typical roof pitch range?
A: Residential roofs typically range from 4:12 (18.4°) to 12:12 (45°), though steeper pitches are used in certain architectural styles.
Q5: Why is accurate ridge height important?
A: Proper ridge height ensures structural stability, adequate attic space, compliance with building codes, and proper water drainage.