Specifications include, but are not limited to: 1. Proceed with selective demolition systematically, from higher to lower level. Complete selective demolition operations above each floor or tier before disturbing supporting members on the next lower level.; 2. Neatly cut openings and holes plumb, square, and true to dimensions required. Use cutting methods least likely to damage construction to remain or adjoining construction. Use hand tools or small power tools designed for sawing or grinding, not hammering and chopping. Temporarily cover openings to remain.; 3. Cut or drill from the exposed or finished side into concealed surfaces to avoid marring existing finished surfaces.; 4. Do not use cutting torches until work area is cleared of flammable materials. At concealed spaces, such as duct and pipe interiors, verify condition and contents of hidden space before starting flame-cutting operations. Maintain portable fire-suppression devices during flame-cutting operations.; 5. Maintain fire watch during and for at least 4 hours after flame-cutting operations.; 6. Maintain adequate ventilation when using cutting torches.; 7. Remove decayed, vermin-infested, or otherwise dangerous or unsuitable materials and promptly dispose of off-site.; 8. Remove structural framing members and lower to ground by method suitable to avoid free fall and to prevent ground impact or dust generation.; 9. Locate selective demolition equipment and remove debris and materials so as not to impose excessive loads on supporting walls, floors, or framing.; 10. Dispose of demolished items and materials promptly.
