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ATTIC VENTILATION <br />ATTIC AREA <br />TOTAL VENTING REQUIRED <br />2011 SQ. FT. <br />965 SQ. IN. <br />UPPER VENT 40% NET VENT MIN. <br />386 SQ. IN. <br />UPPER VENT 50% NET VENT MAX. <br />483 SQ. IN. <br />UPPER VENTS REQUIRED <br />48" TAMCO OFF -RIDGE VENT (138 SI NET FREE) <br />3 VENTS <br />NET FREE AREA UPPER ROOF VENTING <br />414 SQ. IN. <br />NET FREE AREA SOFFIT VENTING <br />551 SQ. IN. <br />LINEAR FT. SOFFIT REQ'D AT 6.57 SQ. IN. / LF. <br />84 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"=1'-0" <br />w <br />} 2 cc <br />�OOI=— <br />WowC¢O <br />p F— <br />Lu <br />< p w <br />CL ;LULU <br />m cr ct cr <br />Y Q F— z <br />coLLOO(f) <br />zQz� zz_ <br /><+ -� <br />Lu <br />w a 2 cra <br />30 00 <br />�2ZLL0 <br />�F-<Zcz <br />. Q.i <br />•- <br />cz L n <br />c�`�+( a .�. <br />� C <br />O �Z <br />$3 <br />H <br />0 <br />0 <br />O <br />i <br />10 <br />a <br />o <br />� <br />O <br />w <br />O <br />w <br />(t <br />a� <br />w <br />w <br />w <br />x <br />cn <br />m< I <br />U) <br />W <br />G <br />1l <br />O� <br />IIZ <br /><1 <br /><1<a <br />COMMUNITY: <br />UNKS AT CA SA <br />SPRINGS <br />PLAN # 6100 <br />RELEASED: 02/04/21 <br />SHEET <br />A3. I <br />