ASCE-7 Wind Zone 4-5 Interpolation Calculator

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By clicking below, you agree that the use of this design aid is for estimating purposes only. Results are not valid for use & no construction or design shall be performed without the review and certification by a registered professional engineer.

No warranty or guarantee whatsoever is offered with any results obtained herein.


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This tool assists in interpolating between the corner & interior wall wind zones 4 and 5 using ASCE 7.

Typically zone 5 corner negative (suction) pressures are higher than a building’s interior zone 4 pressures which may restrict the glazing product from being installed.

Using this tool, interpolated pressures can be determined that may permit a lower product limiting pressure.

Results could be reviewed and certified for permit by an engineer of this firm by requesting a review & certified results.

Ref: FBC HVHZ 2411.  Click Here for an explanation of wall zones 4 & 5

Zone interpolator
ASCE 7 WIND PRESSURE ZONE 4/5 INTERPOLATOR
SEE HELP & IMAGE AT BOTTOM - HOVER/CLICK LABELS FOR HELP
Click to read our informative help page on this tool.
INPUTS
This is the average roof height from the peak to the eave. See image below. Mean Roof Height
FT
This is the shortest building dimension. The End zone 5 is 10% of this value, 40% of height, but not less than 3’. See help and image below. Min Bldg Dimension
FT
This is the distance from the nearst building corner to the edge of the window being installed. See image below. Distance To corner
FT
This is the horizontal distance of the window being insalled. See image below. Opening Width
Inches
Zone 4  + Pressure
PSF
Absolute value of the negative zone 4 pressure only (do not include the negative sign). Zone 4 - Pressure
PSF
Zone 5 + Pressure
PSF
Absolute value of the negative zone 5 pressure only (do not include negative sign). Zone 5 - Pressure
PSF
INTERPOLATED OUTPUT
% In Zone 4

INVALID WITHOUT
ENGINEER SEAL

 %
% In Zone 5
%
Negative Pressure
PSF
Positive Pressure
PSF
© Engineering Express
asce wind zone interpolation image
asce wind zone interpolation image

ASCE-7 Wind Zone 4-5 Interpolation Calculator

Price range: $80.00 through $120.00

This tool interpolates between the corner & interior wall wind zones 4 &5 using ASCE 7-16 or ASCE 7-10. Results can be reviewed & certified by an engineer for permit.

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