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ROOF ATTIC VENTILATION <br />ATTIC AREA <br />TOTAL VENTING REQUIRED <br />2737 SQ. FT. <br />1314 SQ. IN. <br />UPPER VENT 40% NET VENT MIN. <br />526 SQ. IN. <br />UPPER VENT 50% NET VENT MAX. <br />657 SQ. IN. <br />UPPER VENTS REQUIRED <br />48" TAMCO OFF -RIDGE VENT (138 SI NET FREE) <br />4 VENTS <br />NET FREE AREA UPPER ROOF VENTING <br />552 SQ. IN. <br />NET FREE AREA SOFFIT VENTING <br />762 SQ. IN. <br />LINEAR FT. SOFFIT REQ'D AT 6.57 SQ. IN. / LF. <br />116 LF. <br />NOTE: LOCATE RIDGE VENTS 2'-0" OFF ALL <br />HIPS RIDGES OR VALLEYS, MIN., TYP. <br />R806.2:THE MINIMUM NET FREE VENTILATING AREA SHALL <br />NOT BE LESS THAN 1/150 OF THE VENTED SPACE. <br />EXCEPTION: THE MINIMUM NET FREE VENTILATION AREA <br />SHALL BE 1/300 OF THE VENTED SPACE PROVIDED NOT <br />LESS THAN 40 PERCENT AND NOT MORE THAN 50 <br />PERCENT OF THE REQUIRED VENTILATING AREA IS <br />PROVIDED BY VENTILATORS LOCATED IN THE UPPER <br />PORTION OF THE ATTIC OR RAFTER SPACE. UPPER <br />VENTILATORS SHALL BE LOCATED NOT MORE THAN 3 <br />FEET (914 MM) BELOW THE RIDGE OR HIGHEST POINT OF <br />THE SPACE, MEASURED VERTICALLY, WITH THE BALANCE <br />OF THE REQUIRED VENTILATION PROVIDED BY EAVE OR <br />CORNICE VENTS. WHERE THE LOCATION OF WALL OR <br />ROOF FRAMING MEMBERS CONFLICTS WITH THE <br />INSTALLATION OF UPPER VENTILATORS, INSTALLATION <br />MORE THAN 3 FEET (914 MM) BELOW THE RIDGE OR <br />HIGHEST POINT OF THE SPACE SHALL BE PERMITTED. <br />UNDERLAYMENT APPLICATIONS SHALL BE INSTALLED IN <br />ACCORDANCE WITH SECTION R905.1.1 <br />FOR ASPHALT SHINGLES REFERENCE TO SECTION R905.2 <br />FOR TILE ROOFING REFERENCE TO SECTION R905.3 <br />ROOF PLAN <br />SCALE: 1 /4"=V-0" <br />cc <br />w <br />CC <br />Lu <br />wz0= <br />O >- H <br />WowcaO <br />p F- <br />Lu <br />< w <br />CC <br />U)Wg <br />Jm <br />� cc cc <br />Ir <br />�10E—Z <br />LL O O u) <br />Z Z z Lu <br />~ Lu <br />cr < <br />w(L2tr0- <br />mU)a00 <br />= Z LL (n <br />�I—QZO <br />q) <br />cz." <br />cz <br />H <br />�Q <br />0 <br />H <br />O <br />O <br />O <br />U <br />O <br />Z <br />c� <br />0 <br />(L <br />0 <br />mi <br />O <br />w <br />O <br />w <br />M <br />w <br />0 <br />E <br />U) <br />W <br />G <br />U) <br />O� <br />�o <br />Z <br />aaaaa <br />COMMUNITY: <br />UNKSATCASA <br />SPRINGS <br />PLAN # 6120 <br />RELEASED: 02/04/21 <br />SHEET <br />A3. I <br />