“the employer shall pay to the Contractor the amount certified within 14 days of the date of the certificate, subject to any deductions and set-offs due under the Contract.”
“There was no dispute that the architect had issued an interim certificate. It therefore seems to me that the defenders became entitled to payment of the sum brought out in the interim certificate within 14 days of it being issued. In my opinion that is an entitlement to payment of a sum due under the contract. In order to reach the figure in the interim certificate one has made use of the contractual mechanism. To use the words deployed by Lord Macfadyen [in SL Timber Systems] in para. 20, the issue of an interim certificate was the occurrence of “some other event on which a contractual liability to make payment depended”