Roofing contractor in Florida has a clause in their Agreement, regarding the right of the non breaching party to terminate the agreement with 2 days notice and the client to pay the contractor for completed work including labor and purchased materials prior to the termination. but the clause also includes the following language ..."in addition to the contractors overhead and profit on the portion of work uncompleted as of the cancellation date." Is this last sentence usual language which should be acceptable to the client. Why would the client have to pay anything on uncompleted work when the contractor is in breach?