What needs to be clarified
A multidisciplinary analysis could coordinate examination of the product’s geometry and installation joint within the relevant specialties.
Materials to prepare
- Door specification, delivery documents and manufacturer’s instructions.
- Installation contract, opening diagram and records of alterations.
- Overview and detail photographs, defect records and rework documents.
What to compare
- Whether the identified product matches the delivered configuration.
- Geometry of the leaf, frame, supporting structure and fixing joint.
- Relationship between observed deviations and operating conditions.
Possible outcome of the analysis
A possible output is separate findings on product characteristics and installation circumstances, explaining their relationship and identifying data needed to test remaining hypotheses.
Limits of the conclusions
Adjustment or dismantling may remove original features; a technical finding about causation is not equivalent to determining the parties’ contractual responsibility.