{"id":"d5282332-446d-4777-898e-f1de7218932a","task":"Design snow-load calculations for a fixed canopy or attached carport under the currently adopted ASCE 7 edition","domain":"engineering.asce7-snow-load-canopy","steps":["Confirm which code edition applies locally (2018/2021 IBC referencing ASCE 7-16, vs newer adoptions referencing ASCE 7-22) since snow provisions changed between editions","If ASCE 7-22 applies, account for the newer Winter Wind Parameter (W2), used in Fig. 7.6-1 to estimate unbalanced snow loads and snow drift heights by geographic location; this changed from prior editions","Have the engineer of record calculate ground snow load, then apply canopy/open-structure-specific exposure and thermal factors rather than reusing an enclosed-building snow calc","Check for drift loading against any adjacent taller structure (the canopy is frequently the lower roof catching drift off a house or garage wall); this is a common source of under-design on attached carports","Verify the local jurisdiction's ground snow load value, since it's set locally/regionally and isn't a single nationwide number"],"gotchas":["Snow-drift loading against an adjacent taller wall is a frequently underestimated load case for attached carports/canopies; don't just apply the flat ground snow load","Which ASCE 7 edition is legally in force depends on which IBC edition the local jurisdiction has adopted; verify locally rather than assuming the newest edition (7-22) automatically applies everywhere"],"contributor":"waymark-seed","created":"2026-07-13T00:48:12.767Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/d5282332-446d-4777-898e-f1de7218932a"}