National Archives and Records Service film-vault fire at Suitland, Md. : hearings before a subcommittee of the Committee on Government Operations, House of Representatives, Ninety-sixth Congress, first session, June 19 and 21, 1979 (1979)

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455 RPC0•;'^-^•^ATIO';c. 1. Replace existing vsult alrcondlt'on^ng system with nev" ■ir.r^lv^duc'. vault system capable of ireeting design parameters and winterized to operat year round. The existing system is too old and inadequate to meet design standards. 2. Install insulation on exterior and corridor walls to minimize heat gain. 3. Finish exterior or building with sealer to repel! outside moisture. 4. Install insulation on vault doors, and provide weather stripping to • minimize infiltration, condensation, and heat gain. Either this or replace them with standard refrigerator doors, at a much greater cost. 5. Replace existing insulation in explosion vents with plastic foam, thus providing aii air tight seal, but not affecting vent's usefullness. This Wl minimize infiltration and reduce the vault's heat gain. 6. Provide deconposition vents with conditioned exchange air. This must be included in any vault upgrading project to minimize explosion hazard. 7. Install fume hoods over each work station in the processing room. This will assure local fume removal. Hoods must be "explosion proof." 8. Install small package airconditioning unit in building v;ork area to provide necessary ventilation make-up if required, comfort cooling, -— end static control. It is recommended that the rewind table be removed from the processing room and placed in the office area, or . an unused vault. Such locations are the only building areas where humidity control could be established if processing room ventilation is installed. If relocation of the rewind table Is impractical, some other means for reducing machine static must be chosen in place of humidity control. ESTIWTED COST $ 89,000 per vault building.