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AG 2008 09 22
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AG 2008 09 22
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Last modified
1/28/2010 3:26:01 PM
Creation date
11/27/2017 11:28:59 AM
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Meeting Minutes
Doc Type
Minutes
Meeting Minutes - Date
1/28/2010
Board
Board of Commissioners
Meeting Type
Regular
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COVF;R S'I'C~ItY <br />sloped plane on which to install the stand- <br />ing seam metal roof panel. In order for the <br />new clip/post/yurlin comyonents to bond <br />into a structurally sound suyport system, it <br />was necessary for certain bracing members <br />to be incorporated. 'i'bis bracing allows the <br />subframing system to act independent of <br />the covering system in directing the loads <br />into the existing structural system. <br />A standing seam roof panel system was <br />installed on the subframing system. This <br />panel system consisted of 24-gauge <br />Galvahune coated steel, formed into a flat <br />pan panel design with vertical male/female <br />legs spaced at 16 inches on center. These <br />panels were attached to the subframing <br />purlin with the use of concealed fastened <br />cliys, designed to expand and contract in <br />order to accommodate the movement that <br />will be present in the system due to ther- <br />mal changes in the materials. The seams <br />have factory applied caulk, providing a <br />continuous gasket that experiences a con- <br />stant pressure due to the power crimping <br />of all of these joints. The resultant weath- <br />ering surface is a steel surface, yrotected by <br />an aluminum and zinc coating expected to <br />last well vast 45 years, and is gently sloped <br />toward a gutter and downspout system <br />around the entire building. <br />In addition to the new roof system <br />being able to accommodate expected <br />weather and loads, insulatim~ was added in <br />the new cavity to increase the thermal per- <br />formance of the roof and, thus, reduce the <br />energy costs associated with the building. <br />•1'his insulation, consisting of 6 inches of <br />uufaced fiberglass material, was laid on <br />the original roof prior to the installation <br />of the new metal roof panels. To control <br />condensation and allow any moisture in <br />the existing roof to escape, ventilation able <br />to create five air changes per hour was <br />incorporated into the design. <br />James (Buddy) Kiger, assistant superin- <br />tendent of Davidson Cowtty Schools is <br />proud to say the use of this roof system <br />showed "great foresight by the Davidson <br />County school board" While it was initial- <br />ly an attempt to find a more permanent <br />solution to the flat roofs, it has been a per- <br />manent fixture in the commitment to use <br />the school's monetary resources in an effi- <br />cient manner. "~~rith an over S4 million <br />line item in our budget for energy costs, it <br />is important that we provide the best ther- <br />mal package for our buildings," Kiger says. <br />Adding the insulation in the cavity, <br />venting that cavity, and using a roof sur- <br />face to reflect more than 80 percent of the <br />sun's rays, all contribute to minimizing <br />that line item for the school. And, oh yeah, <br />their metal retrofit roofs do not leak! ^ <br />Chuck Houmrd is owner ojrbfetrtl Roof <br />Consrrltmrts of Car}; N.C. He luu designed <br />nad built more thmr 20 million square <br />feet of metal roofing daring the last <br />30 years, He carr be reached at <br />rlnrckCanreMh•ao(consrrl tarrts.net. <br />~t~tll ; 2~ ~ _.. <br />Attachment number 2 <br />24 \IE"FAL ROOFING FE6RUARY•/MARCH 2O0G <br />Ledford Higlr Sclrool inspection by Bill Bilger; PE, of Bilger Engineering, arrd loe LnFrtve, president of <br />LnFave's Coash•uction Conrpnrr}; /nc. <br />Ledford High Sclrool(rtbove) in T/ronmsr~ille, <br />N.C., with its new metal retrofrt roof. Below is dre <br />lertky Jlat roojof Ledforrt before the irrstnllrttiou of <br />rt uretrtJ retrofrt roof. <br />
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