Roof Wind Uplift Calculator
Actual independently governing net roof uplift pressure×tributary area, not select wind zone/pressure coefficients or anchor design. Actual independently established compatible SI units/model context; conditional arithmetic, not code compliance, engineering design or safe operation approval.
Description
Net roof uplift force depends on independently established pressure and tributary area.
Net roof uplift force depends on independently established pressure and tributary area.1
This tool multiplies those supplied quantities without selecting wind coefficients or designing anchors.
When to use Roof Wind Uplift Calculator
Use this tool to calculate those supplied quantities without selecting wind coefficients or designing anchors.
How to use Roof Wind Uplift Calculator and how it works
- Prepare callerIndependentlyEstablishedNetUpliftPressurePascals, actualTributaryRoofAreaSquareMeters, with the units, conventions and assumptions below.
- Enter the required fields and run Roof Wind Uplift Calculator.
- Read result.value using the output definitions below.
- Correct any rejected inputs and rerun; interpret the result within the stated model and its assumptions.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| callerIndependentlyEstablishedNetUpliftPressurePascals | Caller Independently Established Net Uplift Pressure Pascals. Use the units and matching context stated in the calculation below. | number | Required; finite; other constraints below |
| actualTributaryRoofAreaSquareMeters | Actual Tributary Roof Area Square Meters. Use the units and matching context stated in the calculation below. | number | Required; nonnegative; finite; other constraints below |
Supply finite signed net pressure in pascals and nonnegative loaded area in square meters. Return their product in newtons, preserving the pressure sign. Coefficients, tributary area and the interpretation of uplift direction must be independently established.
forceNewtons=netPressurePascals*areaSquareMeters Apply the input ordering, units and branch conditions stated above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Object containing the calculated or selected fields below. | object |
| result.value | Signed net roof force in newtons. | number |
{
"input": {
"callerIndependentlyEstablishedNetUpliftPressurePascals": 10,
"actualTributaryRoofAreaSquareMeters": 2
},
"output": {
"result": {
"value": 20
}
}
}Limitations and assumptions
The calculation uses the supplied observations and model inputs. It does not collect measurements, select a reference population or coefficient, or establish that the model applies to the actual case. The stated branch conditions and output units remain part of the result.
All fields require explicit values. Unexpected fields, wrong types, nonfinite numbers and sparse arrays are rejected. Alignment, bounds and supported-token rules are explained above; extremely large inputs or nonfinite results can also fail. Input errors differ from successful false comparisons, unavailable-domain flags and empty match lists.
Alternative or Complementary methods
Use Roof Wind Uplift Pressure Calculator for a complementary operation: Roof wind pressure depends on the velocity pressure and net pressure coefficient applicable to the surface.
Use Blast Load Pressure Calculator for a complementary operation: Protective blast-load analysis depends on the wave model, geometry and qualified engineering evidence.
References
-
Roof Wind Uplift Calculator — tool.io
Similar or alternative tools
- Roof Wind Uplift Pressure Calculator
Roof wind pressure depends on the velocity pressure and net pressure coefficient applicable to the surface.
- Blast Load Pressure Calculator
Protective blast-load analysis depends on the wave model, geometry and qualified engineering evidence.