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Page 2 <br /> <br />has not given me a price at this time for converting this system over, but he <br />felt that it would be less than $500. <br /> <br />The second item is the repair and corrections at City Hall. On December <br />12,1995, a 2 inch by 1-1/4 inch tee froze and broke in the soffit area at the <br />main vestibule. This freezing allowed the sprinkler system to run for <br />approximately 8-10 minutes allowing approximately 1500-2000 gallons of <br />water into the building. Since that time, Granell Sprinkler Systems came <br />out and repaired the damage to the sprinkler system. <br /> <br />After further investigation of what caused this freeze, we have determined <br />that the insulation assembly has failed the same way it did two years ago <br />when we had two sprinkler heads go off, one at the vestibule and one in the <br />audio visual room. It appears that the tape they use to secure this insulation <br />to other insulation does work, however, the problem occurs when they use <br />this tape to secure it to either steel studdings or steel I-beams. What is <br />occurring is the steel itself is in either an expansion mode or a contraction <br />mode which is loosening the tape to this beam and allowing this insulation to <br />drop down. Once the insulation does drop down, we have an abundance of <br />cold air coming into the areas. <br /> <br />This building was designed with the insulation envelope above all the <br />sprinkler systems and soffited area and, in theory, would work if we did not <br />have the failure of the insulation since we do have heat penetrating the 5/8 <br />inch sheetrock and warming these areas of unheated conditions. <br /> <br />With the running history of failures of this insulation, my current concerns <br />are with the sprinkler system prior to the correction of the water damage. <br />The five areas of concern are the soffit area in the main corridor from the <br />vestibule going west to the end of the windows, the vaulted area in the <br />council chambers, the audio visual room, and the upper mezzanine area for <br />the record keeping and mechanical room. These areas are of concern because <br />of the insulation located in these areas and the uncertainties of a future <br />failure in these areas, as these areas are very difficult to access to determine <br />a failure. <br /> <br />Once again, insurance is required for these areas to assist us in possible <br />future freezing problems. Numerous ideas were worked on for these <br />corrections. One was to create a dry system for all of City Hall. After <br />reviewal of the plan it was determined that we have a loop system and the <br />cost to turn this into a dry system would be a very substantial amount. The <br />best idea that Granell Fire Protection and I came up with was an antifreeze <br />loop system. This system would take care of the records and mechanical <br />room, the council chambers, and the audio visual room. The price would be <br />$3,100 for the council, records, and mechanical room; $1,250 for the audio <br /> <br />csl-31/bz <br /> <br /> <br />