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2603.5 Sealing of Buildings, Structures and Spaces
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Paper and other similar materials that do not meet the flame propagation performance criteria of Test Method 1 or Test Method 2, as appropriate, of NFPA 701 shall not be used to wrap or cover a building, structure or space in excess of that required for the sealing of cracks, casements and similar openings.
All openings to the building, structure or space to be fumigated or fogged shall be kept securely closed during such operation.