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Mistake & recovery · #099

Not adjusting layout for building out-of-square conditions

3rd YearMeasuring & Layout

Check building squareness by measuring diagonals on the floor before committing any duct layout. If the building is racked, establish your own control gri…

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Safer field move

Check building squareness by measuring diagonals on the floor before committing any duct layout. If the building is racked, establish your own control grid based on the mechanical room or main distribution point, not on walls.

Ask Foreman

Can you verify this before I keep going? I’m looking at: Not adjusting layout for building out-of-square conditions. What’s the approved correction for this job?

Do not

Do not hide, force, cover, or “make it work” if this affects safety, access, airflow, rated assemblies, supports, equipment, or inspection. Stop and verify the approved correction.

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