Hip Length Formula:
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Hip roof framing involves calculating the precise measurements for roof construction where all sides slope downwards to the walls. The hip length is a critical measurement that determines the length of the diagonal rafter connecting the ridge to the corner of the building.
The calculator uses the hip length formula:
Where:
Explanation: The formula calculates the diagonal distance from the ridge to the corner, adjusted for the roof pitch angle to determine the actual rafter length.
Details: Accurate hip length calculation is essential for proper roof construction, material estimation, and ensuring structural integrity of the hip roof design.
Tips: Enter end wall and side wall lengths in meters, and roof pitch in degrees. All values must be valid (wall lengths > 0, pitch between 0-90 degrees).
Q1: What is a hip roof?
A: A hip roof is a type of roof where all sides slope downwards to the walls, usually with a fairly gentle slope.
Q2: Why is the pitch angle important?
A: The pitch angle affects the length of the rafter - steeper pitches require longer rafters for the same horizontal span.
Q3: What units should I use?
A: The calculator uses meters for wall lengths and degrees for pitch angle. Convert imperial measurements to metric if needed.
Q4: Are there different types of hip roofs?
A: Yes, including simple hip, cross-hipped, and half-hipped roofs, each with slightly different framing requirements.
Q5: Should I add extra length for overhangs?
A: Yes, this calculation provides the basic rafter length. Additional length should be added for any desired overhangs or eaves.