the provisions of a construction contract and the payment application has been approved by the owner or the owner’s agent, the owner shall pay the amount due to the contractor pursuant to the payment application not more than 15 calendar days after the approval. The payment application shall be deemed approved 25 days after the owner receives it unless the owner provides, before the end of the 25-day period, a written statement of the amount withheld and the reason for withholding payment. If the owner finds that a portion of the work is not in accordance with the contract, payment may be withheld for the reasonable value of that portion only. Payment shall be made for any portion of the contract for which the work has been performed in accordance with the provisions of the contract. Instructions or notification from an owner to his or her lender or architect to process or pay a payment application does not constitute approval of the payment application under this Act.

with the provisions of his or her contract with the contractor or subcontractor and the work has been accepted by the owner, the owner’s agent, or the contractor, the contractor shall pay to his or her subcontractor and the subcontractor shall pay to his or her subcontractor, within 15 calendar days of the contractor’s receipt from the owner or the subcontractor’s receipt from the contractor of each periodic payment, final payment, or receipt of retainage monies, the full amount received for the work of the subcontractor based on the work completed or the services rendered under the construction contract.