Questão jurídica principal
Whether the buyers' defect claims were time-barred under sales or work-contract limitation rules.
Decisão extraída
The claims were time-barred regardless of whether they were analysed under sale or work-contract principles.
Fundamentação extraída
The sellers had excluded warranty, and their later conduct did not amount to a legally effective acknowledgement interrupting limitation. Any alternative contractual claims derived from the defect were subject to the same warranty limitation.