Code contains regulations, which can be immediately adopted or enacted for use by various departments, municipal administrations and public bodies. It lays down a set of minimum provisions designed to protect the safety of the public with regard to structural sufficiency, fire hazards and health aspects of buildings; so long as these basic requirements are met, the choice of materials and methods of design and construction is left to the ingenuity of the architect and the engineer. The Code also covers aspects of administrative regulations, development control rules and general building requirements; fire protection requirements; stipulations regarding materials and structural design; rules for design of electrical installations, lighting, air-conditioning and lifts; regulation for ventilation, acoustics and plumbing services, such as water supply, drainage, sanitation and gas supply; measures to ensure safety of workers and public during construction; and rules for erection of signs and outdoor display structures.
Building codes limit the allowable materials for a particular building, based on building occupancy type and zoning considerations. Occupant life safety is the primary concern of such codes, which limit material combustibility, flame spread rating, and smoke toxicity. In some jurisdictions, Historic District guidelines or other visually-based design guidelines may specify allowable exterior materials, color selection, and other aesthetic considerations including style.
Both exterior and interior building materials should be selected based upon their appropriateness for the building type, durability, impact on the environment, climatic conditions, and the prevailing architectural design and character of the installation.
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