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How BIM can reduce construction rework
Rework is information failure with a material cost. BIM attacks the four failures that cause most of it.
5 min read
Failure 1 — drawings that disagree
- Architectural, structural and services sheets drawn separately drift apart.
- In BIM all views come from one coordinated model, so the disagreement surfaces on screen.
Failure 2 — invisible interfaces
- Beam depths, shaft alignment, sunken slabs and headroom are hard to judge in 2D.
- Clash detection and 3D sections expose these before casting.
Failure 3 — quantities from thumb rules
- Over-ordering wastes cash and storage; under-ordering stalls the site.
- Model-based take-offs give element-wise concrete, steel, masonry and finish quantities.
Failure 4 — undocumented changes
- A verbal change on site leaves the next trade working from the old drawing.
- Model changes update plans, sections and schedules together, with a revision record.
How to get the benefit
Model and coordinate before structural drawings are frozen, and keep the model live through construction so changes stay recorded.
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