Article 1723
ART. 1723. The engineer or architect who drew up the plans and specifications for a building is liable for damages if within fifteen years from the completion of the structure, the same should collapse by reason of a defect in those plans and specifications, or due to the defects in the ground. The contractor is likewise responsible for the damages if the edifice falls, within the same period, on account of defects in the construction or the use of materials of inferior quality furnished by him, or due to any violation of the terms of the contract. If the engineer or architect supervises the construction, he shall be solidarily liable with the contractor. Acceptance of the building, after completion, does not imply waiver of any of the causes of action by reason of any defect mentioned in the preceding paragraph. The action must be brought within ten years following the collapse of the building. (n)