If the material is provided by the contractor, the contractor is liable to the employer, like the seller, for the defectiveness of this material.
If the material is provided by the employer, the contractor is obliged to use them with due care and therefore to return the account and the surplus.
While the work is being produced, if it is understood that the material provided by the employer or the place indicated for the work is defective, or if another situation arises that would endanger the proper or timely production of the work, the contractor must immediately notify the employer of this situation; If he does not notify, he will be responsible for the consequences.
