Laserfiche WebLink
October 17, 2011 (Regular Meeting) <br />HIP ROOF - The hip roof is usually pitched in four directions. <br />HIP <br />ROOFING STRUCTURE, cont. <br />Page 826 <br />IRREGULAR ROOF - Any of a variety of unusual slopes, which do not have the <br />same rise per foot, run throughout. <br />MANSARD - A roof with two slopes on all four sides; the lower slope very <br />steep, the upper slope almost flat. <br />NRA\MA IN <br />PRESTRESSED CONCRETE - Roofs that are made up of concrete, which has been <br />made up elsewhere, pre- stressed, and erected in place with cranes. <br />Pre - stressing makes it possible to use less steel and usually less <br />bulky than reinforcing. <br />REINFORCED CONCRETE ROOF - Roof framing where concrete is formed and poured <br />in place with a system of steel rods or mesh for absorbing tensile and <br />shearing stresses. Roof framing of this type has been formed and <br />poured on the ground, and, through a system of hydraulic jacks, raised <br />to proper position. <br />RIGID FRAME WITH BAR JOIST - Bar joists are fabricated steel open trusses, <br />which have been set close together, and serve as roof beams or ceiling <br />joists. The span of these is limited due to their lightness and depth. <br />Bar joists limit roof shape to flat or shed and is to be used in place <br />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 <br />unequal slopes. When viewed from the end, such a roof presents a <br />serrated profile similar to the teeth of a saw. <br />SAWTOOTH <br />ROOFING STRUCTURE, cont. <br />