Case Study
Andimeshk Stadium
Execution of the Andimeshk Stadium curved roof with a sandwich panel system over a 6,000 m² large-span envelope — controlling curved geometry, drainage paths, and waterproofing continuity.
A SIPANEL reference for curved, large-span industrial roof envelopes.
Case Study
Project snapshot
Project challenge
Andimeshk Stadium required a large-span curved roof where curved geometry, panel alignment, drainage on the curved surface, and waterproofing continuity all had to be controlled together. Small alignment deviations on the curved surface could cause joint discontinuity, standing water, and leakage.
- Controlling curved geometry and panel alignment on a curved surface
- Designing a continuous drainage path across the curved roof with no standing-water points
- Maintaining waterproofing continuity at joints and roof penetrations
- Controlling panel deformation and thermal movement across the large span
Engineering decision
SIPANEL engineered a coordinated sandwich panel roofing system matched to the stadium's curved structure — including curvature-based panel layout optimisation, integrated waterproofing detailing, and panel-to-structure coordination.
Before installation, the engineering team prepared structural alignment studies, curved-surface panel layout drawings, drainage coordination details, and an installation sequence to secure geometric accuracy and long-term roof performance.
A sandwich panel roof system was selected for its high strength-to-weight ratio, continuous insulated envelope, and suitability for curved surfaces over this span.
Panel layout, drainage paths, and penetration locations were coordinated with the structure and architecture before installation to minimise joints and leak points on the curved surface.
Execution detail
Installation sequence
Installation followed an engineered sequence: setting out from the roof geometry reference, alignment control at inspection checkpoints, connection coordination, and stage-by-stage joint waterproofing checks to preserve curvature accuracy and envelope continuity.
Procurement control
Panels and waterproofing accessories were supplied to suit the curved layout and span lengths, reducing on-site cutting and waste while maintaining dimensional fit.
Coordination with site team
Execution proceeded with continuous coordination between the engineering team and the site installation crew, based on approved drawings.
Quality checkpoints
- Panel alignment and geometric fit checks on the curved surface
- Drainage path continuity inspection before envelope completion
- Joint and penetration waterproofing monitoring
Measured result
Risks controlled before publication
Curved roof geometry and panel alignment
Risk: alignment deviation on the curved surface causes joint discontinuity and a poor finish. SIPANEL control: setting out from the roof geometry reference with staged alignment inspection. Why it matters: a continuous, accurate envelope with the intended architectural appearance.
Drainage path on the curved surface
Risk: standing-water points on a curved roof add load and cause leaks. SIPANEL control: a continuous drainage path, inspected before the envelope is closed. Why it matters: reliable rainwater removal and reduced long-term leak risk.
Deformation control across the large span
Risk: panel deformation and thermal movement across a long span create stress and joint opening. SIPANEL control: layout and connection detailing matched to span length and thermal movement. Why it matters: a stable roof with less need for repair.
Joint and penetration waterproofing
Risk: joints and roof penetrations are the most leak-prone points. SIPANEL control: integrated waterproofing detailing and joint monitoring during installation. Why it matters: a watertight, dependable envelope throughout service life.
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Have a curved roof or a large-span project?
Send the drawings or specifications for your curved roof, stadium, or large-span envelope, and the SIPANEL engineering team will review the geometry, drainage, and waterproofing details and propose an execution approach.