TinnerFlow™3rd YearSealing & InsulationRED · Stop / Verify
Look at the dedicated Seismic Calculation Sheet Package provided by the structural engineer. It will reference your duct size and weight to tell you:
Look at the dedicated Seismic Calculation Sheet Package provided by the structural engineer. It will reference your duct size and weight to tell you:
The required thickness of the steel aircraft cable.
The precise allowable installation angles (30 ∘ to 60 ∘ relative to the ceiling slab).
The maximum linear spacing distances allowed between lateral braces (preventing side-to-side sway) and longitudinal braces (preventing front-to-back shifting).
Use this as training guidance. The foreman, approved drawings, project specs, manufacturer installation instructions, employer safety policy, and AHJ/code requirements always control the final answer.