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CABARRUS COUNTY 2012 APPRAISAL MANUAL <br />ROOFING STRUCTURE, cont. <br />IRREGULAR ROOF - Any of a variety of unusual slopes, which do not have the same rise per foot, run throughout. <br />MANSARD - A roof with two slopes on all four sides; the lower slope very steep, the upper slope almost flat. <br />MANSARD <br />PRESTRESSED CONCRETE - Roofs that are made up of concrete, which has been made up elsewhere, pre- stressed, and <br />erected in place with cranes. Pre - stressing makes it possible to use less steel and usually less bulky than reinforcing. <br />REINFORCED CONCRETE ROOF - Roof framing where concrete is formed and poured in place with a system of steel rods or <br />mesh for absorbing tensile and shearing stresses. Roof framing of this type has been formed and poured on the <br />ground, and, through a system of hydraulic jacks, raised to proper position. <br />RIGID FRAME WITH BAR JOIST - Bar joists are fabricated steel open trusses, which have been set close together, and serve as <br />roof beams or ceiling joists. The span of these is limited due to their lightness and depth. Bar joists limit roof shape <br />to flat or shed and is to be used in place of flat or shed roofs on commercial buildings with medium spans. <br />SAW TOOTH ROOF - A roof, which is formed of a number of trusses having unequal slopes. When viewed from the end, such <br />a roof presents a serrated profile similar to the teeth of a saw. <br />SAWTOOTH <br />Cabarrus County — 2012 Revaluation <br />APPENDIX 12-19 <br />9/30/11 <br />Attachment number 13 <br />G -6 Page 391 <br />