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roof openings

Educational resource

Roof opening coordination: Risk questions to answer early

Roof opening coordination: Risk questions to answer early. Skylights, chimneys, ducts, plumbing, and other roof openings need to be coordinated with truss…

Roof opening coordination: Risk questions to answer early — RiverTruss educational resource

Why this matters

Skylights, chimneys, ducts, plumbing, and other roof openings need to be coordinated with truss layout, structural notes, flashing, and the building enclosure. Risk work is most useful before money, schedule, or reputation is committed; the goal is to make uncertainty visible while options remain.

An opening added after fabrication can create a structural and weatherproofing problem at the same time.

A practical framework

  1. locate openings on the current roof plan
  2. coordinate truss spacing and girder conditions
  3. review flashing and weather protection
  4. document any approved revision before fabrication

Questions to answer

  • What is the earliest warning sign that this plan is moving off course?
  • Which risk is outside the team’s control and needs an alternate path?
  • What evidence would change the recommendation?

Common failure modes

  • Calling a risk ‘unlikely’ without explaining the impact if it occurs.
  • Combining unrelated risks into one vague status label.
  • Failing to revisit the risk register when the scope changes.

Primary references

Relevant project context