Description
Return roof height and point clearance above an obstruction.
Architectural openings and clearances depend on measured boundaries, projection axes and a caller-supplied comparison criterion. A positive geometric margin is distinct from demonstrating code compliance, safe access or a complete door-swing envelope. Plan lengths and projected dimensions must not be mistaken for full spatial measurements.
Return roof height and point clearance above an obstruction.
When to use this tool
Use Roof Pitch Clearance Point when checking the stated opening, projection or clearance geometry.
How to use the tool and how it works
- Enter horizontalDistance, risePerRun, originHeight, obstructionHeight. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read roofHeight, clearance. Use the output convention below.
Return roof height and point clearance above an obstruction. roofHeight = originHeight+horizontalDistance*risePerRun, clearance subtracts obstructionHeight.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| horizontalDistance | Horizontal Distance | Required. Finite number. |
| risePerRun | Rise Per Run | Required. Finite number. |
| originHeight | Origin Height | Required. Finite number. |
| obstructionHeight | Obstruction Height | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| roofHeight | Roof Height | Required. Finite number. |
| clearance | Clearance | Required. Finite number. |
{
"input": {
"horizontalDistance": 4,
"risePerRun": 0.5,
"originHeight": 2,
"obstructionHeight": 3
},
"output": {
"roofHeight": 4,
"clearance": 1
}
}Limitations and assumptions
- This is a local straight-profile calculation, not a complete obstruction survey, structural design or safe-clearance determination.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use complete measured plans and a qualified architectural/engineering assessment with the applicable requirements for real construction or safety decisions.
References
Similar or alternative tools
- Soffit Slope Clearance At Point
Return linear soffit height and local floor clearance.
- Balcony Guard Gap Explicit Clearance
Check a guard gap against a supplied inclusive limit.