Structural PE Stamp in Denver, CO — Snow, Wind & Seismic Sealed Review

My Denver structural review gives snow the attention the climate demands. I verify the ground snow load basis for the site, then work through the roof geometry as drawn: exposure factor reflecting the site's surroundings, thermal factor for the occupancy and roof type, and importance factor. Then the cases that actually fail roofs — drifts at every parapet, projection, and roof step, with drift heights computed from the upwind fetch distances as drawn; unbalanced loads on gable and curved roofs; sliding snow where upper roofs drain onto lower ones; and rain-on-snow where the code requires it. Each drift surcharge gets traced into the member design beneath it. The sealed package shows the reviewer that the roof was designed for the snow it will actually carry, in the places the snow will actually pile up.

The lateral review covers Front Range wind and code seismic together: I verify wind criteria and exposure, the seismic design category from site-specific parameters, the selection and design of the lateral resisting system, diaphragm design and connections, and component and cladding pressures. Foundations get the geotechnical treatment — the report's profile, swell testing, and recommendations translated into pier depths, slab details, or whatever system the soils demand, all shown on the drawings. Below-grade walls get earth pressure design. The complete load path runs from the drifted roof snow and lateral forces down through the structure into foundations bearing on characterized soils. That unbroken chain — criteria to members to soil — is what the seal certifies and what Denver's reviewers audit.

I verify each of these against project documents before the Colorado PE seal goes on a Denver set. • Colorado PE license verified; responsible charge established • Ground snow load basis confirmed; drift, unbalanced, and sliding cases calculated • Wind criteria and exposure verified for Front Range conditions • Seismic design category determined; detailing matches the category • Geotechnical report in hand; foundation design implements its recommendations • Expansive-soil detailing shown: piers, slabs, isolation as recommended • Load paths traceable roof-to-foundation in calculations and drawings • E-permits submittal organized; calculations paired with the drawing set