SECTION III
SAFEGUARDS DURING CONSTRUCTION Background
The danger of a potential fire is usually much greater while a building is being constructed, altered or demolished than after work is completed and the fire protection equipment is in service. As work progresses, accumulations of combustible building materials, wooden forms and scaffolding, scrap lumber, paper and plastic packing and wrappings, and other refuse appear at new locations daily. The fire danger is increased further by the presence of many ignition sources, such as hot work equipment, carelessly discarded matches or cigarettes; temporary heaters and lights; and roofers’ tar kettles, heating guns and torches. Many serious fires have occurred during the construction period, destroying valuable property and delaying completion of a project. Close follow-up throughout the construction period is required to assure that safeguards are put into practice and are strictly enforced by the contractor. Construction and Location 1. Temporary trailers, sheds or offices should be of noncombustible construction when located within or near the building being constructed or renovated. When the temporary structure or its contents are combustible, locate the structure at least 50 ft away from main buildings and at least 30 ft apart from each other, or protect with automatic sprinklers. 2. Install only as much roof insulation as can be covered with roof covering in a single working day, or prior to the expected start of inclement weather. Seal loose roof cover edges at the end of each day to minimize potential moisture damage. Asphalt or coal tar (as appropriate) can be used for built-up roof (BUR) covers; proprietary sealers are available for single-ply roof covers. Do not allow water to run in the deck ribs under completed roof sections. Follow manufacturer’s recommendations. 3. Whenever a chute is to be utilized for debris removal, install it on the outside of the building. Its construction should be noncombustible. The main artery of the chute should be as straight as possible to help prevent accumulations or clogging within the chute. Protection 4. Expedite installation of automatic sprinklers. Underground mains, hydrants and a source of water should be provided in the earliest stages of construction. Place sprinklers in service ahead of a combustible occupancy and immediately following combustible construction. Submit sprinkler plans promptly for review, comment and acceptance prior to ordering materials. Order all materials in advance of construction to assure delivery when needed. Construction sequences of various trades should be closely coordinated. 5. The FM Global Red Tag Permit System should be used to monitor all fire protection system impairments.
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