Scope an engineered wind-load design for a freestanding or pylon sign under ASCE 7

Steps

1. Confirm which ASCE 7 edition the adopted building code references locally (editions and force-coefficient tables have changed between cycles — do not assume the newest edition applies everywhere)
2. Classify the sign structure per the relevant freestanding-sign/solid-freestanding-wall provisions and determine whether openings comprise less than 30% of gross area (a 'solid' sign) or should be treated differently
3. Have the engineer establish exposure category, basic wind speed, and risk category for the site, then calculate the design wind force using the applicable velocity-pressure and force-coefficient method for the sign's height and shape
4. Size the foundation/footing and anchorage to resist the calculated overturning moment and lateral force, including any frost-depth or soil-bearing requirements from the local building code
5. Have a licensed engineer stamp the calculation package (wind load, footing design, anchor bolt details) for submittal, since most jurisdictions require a sealed engineering package for freestanding signs above a locally defined height/area threshold