The brief
A high-specification commercial development that prioritised aesthetic integrity and strict adherence to design guidelines. The roof installation included a sustainability-mandated solar PV array, but the design brief had under-specified the relationship between panel height and parapet line.
Why it was risky
Aesthetic clauses in commercial leases are easy to underestimate. A protruding rooftop element on a Grade-A building reads as unfinished and becomes a leasing-stage issue — but the cost of remediation is borne by the owner.
- Solar panel protrusion: the design did not capture the actual height envelope of the procured panels relative to the parapet.
- Design oversight: panels would have sat above the parapet line.
- Aesthetic compromise: the building would have read as unfinished from street level.
What Kaël did
- Governance-by-workflow required formal document verification during installation, ensuring design requirements aligned with actual site conditions.
- Inspection checklists applied explicit acceptance criteria — including parapet-line clearance — before any panel was secured.
- Design-brief validation caught the missing height requirement before the panels were ordered and installed.
- Manual measurement enforcement instructed site engineers to measure and confirm both panel and parapet line in person before sign-off.
- Structured feedback prevented sign-off on non-compliant work and pushed any deviation back into the formal change-order process.
Outcome
Panels were installed at a height that respected the parapet line. The aesthetic intent of the design was preserved without needing to revisit the roof installation after handover.
