Electrical routes in technical ceilings: tolerances that avoid rework
Clearance criteria between cable trays, ducts and structure in the clash matrix.
The technical ceiling is where coordination usually breaks down: the space is contested by cable trays, ducts, pipework and structure.
Setting the minimum clearance between disciplines in the clash matrix, before the first round, avoids reports with hundreds of irrelevant conflicts and keeps the team looking at what matters.