Article 1471

Solidary debtors must contribute to the debt and the expenses, each for the share which concerns him according to their mutual relationship, and in accordance with the following sub-Articles. Unless otherwise agreed or provided for by law, they shall share equally.

The obligation to contribute to a debt which is performed at the expense of one of the solidary co-debtors for more than the share that concerns him, comes to rest upon each co-debtor for the amount of this surplus, each time up to the share which concerns him.

In proportion to the share of the debt which concerns him, each co-debtor must contribute to the reasonable expenses incurred by a solidary debtor, unless they are personal to the latter.