274. Obligations as to workmanship and materials.

274.     Obligations as to workmanship and materials.

The drawings and the specification or bill of quantities will normally specify the quality and type of materials to be used, the workmanship to be employed and sometimes also the method of work to be adopted. They may also specify the purpose or purposes for which the completed works are to be fit. The contractor may thereby come under an express obligation to furnish or be responsible for the design of the works. Such a specification is sometimes called a 'performance specification', particularly for mechanical, electrical or other engineering works