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3 <br />_ <br />Q <br />rn <br />LO <br />u7 <br />0 <br />Q <br />0 <br />N <br />0 <br />J <br />r) <br />r2 <br />0 <br />I <br />_ <br />Q <br />LO <br />Lo <br />W <br />E <br />_ <br />C <br />J <br />C <br />O <br />O <br />J <br />LZ <br />N <br />N <br />C\O <br />cm <br />5 <br />a <br />M <br />O <br />t0 <br />LO <br />ci <br />0 <br />d <br />0 <br />W <br />m <br />s� <br />ATTIC VENTILATION CALCULATIONS - Al <br />Attic Ventilation <br />ATTIC VENTILATION REQUIRED <br />UPPER VENTILATION PROVIDED <br />Attic Ventilation to be in compliance with the Florida Building Code 7th Edition <br />(2020) Residential R806. <br />The Minimum net free ventilating area shall be 1/150 of the area of the vented <br />1/150 Rule <br />1/300 Rule <br />Ridge <br />Off -Ridge <br />space. The ventilating area may be reduced to 1/300 provided that at least 40% <br />(No Upper Ventilators <br />(Must Provide Upper Ventilators) <br />Vent Amt <br />Amt. <br />but no more than 50% of the required ventilation is provided in the upper portion of <br />Req.) <br />(Ft.) <br />the space to be ventilated. Upper ventilators shall be located no more than 3 feet <br />Total <br />(measured vertically) below the ridge or highest point of the space, with the <br />Ventilation <br />balance of the required ventilation provided by eave or cornice vents. <br />ATTIC <br />SPACE <br />SQ. FT. SQ. IN. of <br />Provided <br />r <br />by Upper <br />"CALCULATIONS BASED ON THE FOLLOWING VALUES, SEE ROOF PLAN`* <br />SQ. FT. Total SQ. <br />SQ. IN. of of ventilation to <br />Ventilators <br />(Values to be verified with Manufacturer Specifications) <br />of vented IN. of <br />ventilation vented be provided <br />soffit ventilation <br />SQ. IN. of SO. IN. of <br />Ventilation Ventilation (See Elev) <br />• OFF -RIDGE VENTS 138 SQ. IN. OF NET FREE AREA / UNIT <br />• SOFFIT VENTS 7 SQ. IN. OF NET FREE AREA / SQ. FT. <br />required soffit by upper <br />needed required <br />• STUCCO SOFFIT VENTS - 126 SQ. IN. OF NET FREE AREA / SQ. FT. <br />I needed ventilators <br />*If not enough vented soffit is provided due to fire protection, the contractor shall use the <br />following approved vents: <br />• LOMANCO DECK -AIR (Shingle Roof) - 9 SQ. IN. OF NET FREE AREA / FT. <br />"Formula: (Sq. Ft. Soffit Needed) x 7 = (Sq. In. Needed) ! 9 =(Linear Ft. of Deck -Air Needed) <br />Main <br />28 1 <br />Floor 2373 <br />2278 325 1139 81 570 <br />558.0 <br />(Zone 1) <br />420.0 138.0 <br />-NOTE** <br />GENERAL CONTRACTOR MUST ENSURE THAT PROPER VENTILATION IS PROVIDED AT EAVES/SOFFITS AS <br />REQUIRED BY FLORIDA BUILDING CODE 7TH EDITION (2020) RESIDENTIAL. <br />I <br />I <br />ZONE-1 <br />I <br />I <br />ATTIC SPACE <br />I <br />2373 SQ. FT. <br />a <br />O <br />I <br />I <br />N <br />I <br />In <br />I <br />I <br />I <br />I <br />5:12_ SLOPE, <br />I <br />I <br />I <br />I� <br />w <br />I <br />I <br />I <br />------- <br />RIDGE <br />I O <br />:12� SLOPE <br />14'-0' RIDGE VENT <br />I <br />a <br />O <br />LO <br />I <br />1 V4 RIDGE VENT <br />I <br />RIDGE <br />' <br />Lu <br />a <br />' I <br />o <br />ILLP <br />O <br />T-0' <br />�J I <br />N <br />I <br />I LO I <br />I <br />I <br />' I <br />4'-0' RIDGE VENT <br />' <br />RIDGE <br />I <br />I <br />w I <br />a I <br />' <br />O <br />� I <br />I <br />N <br />� ' <br />I <br />M <br />I <br />I <br />ROOF <br />PLAN — ELEV—Al_ <br />SCALE: %4"=1'-0" <br />e'rs <br />N <br />0 <br />N <br />c" <br />W <br />t <br />1 <br />c ea e� c,, <br />C, <br />N C LL Cl, <br />m � <br />d <br />� N <br />3 =' W' <br />a� - a' <br />a E c_ <br />U <br />Cn <br />41 <br />To the best of the Engineer's knowledge, information and belief, <br />the structural plans and specifications contained within these <br />drawings comply with the 2020 <br />Florida Building Code - <br />Residential <br />7th Edition. Engineers signature and seal is only for <br />the structural engineering portions of the drawing pages bearing <br />Engineers <br />signature and seal. <br />0 <br />W <br />a <br />v E <br />O <br />M U <br />V <br />0 <br />W SON n <br />a)m <br />YGw <br />YI <br />��� <br />� n n J <br />a <br />13 <br />M � 2 # LL <br />N 5 J <br />C U- 52 L <br />-j <br />LLI <br />Co <br />cY°6 <br />Oa <br />Y <br />6 N �_ o <br />W <br />��53 <br />OjO' w <br />Z <br />M <br />ro N z° Q J <br />0 <br />N <br />OU U o <br />ZIL <br />to <br />W <br />❑ ❑ <br />Z N M <br />O 0 <br />Q <br />� <br />U) <br />J <br />r <br />M <br />z <br />�-1 <br />4—"r <br />(6 <br /><n <br />w <br />O <br />LL, s <br />�.. <br />V) <br />c_ <br />U <br />— _ E <br />8 <br />:! <br />11 <br />s t <br />Uo <br />C N <br />0 <br />• <br />�m <br />0 <br />cD <br />w <br />c7 <br />c� <br />J <br />N z <br />o S <br />¢ <br />Z <br />z <br />� <br />LL <br />zo <br />ZN <br />E <br />w 5 <br />Z <br />WO <br />� <br />COE <br />O <br />�¢�� <br />V <br />Z <br />CO ro <br />t <br />a o <br />J <br />l� ru <br />a C <br />as <br />o <br />©c <br />z <br />z <br />m J <br />mm <br />'aw <br />oUca°� <br />° <br />O� <br />z <br />g0 <br />W <br />Cn � <br />a <br />m <br />< <br />wd o <br />o <br />a w <br />x k <br />oNz <br />tt <br />3 <br />J w <br />0 <br />O <br />V <br />OI2 <br />QTTO <br />O <br />(D <br />W <br />LO LO <br />Ql <br />0 <br />W <br />co <br />CD <br />: N <br />C <br />CT <br />o <br />N <br />Y <br />U <br />m <br />m <br />LO <br />O <br /><C <br />Ll- M <br />I <br />U N <br />d' <br />m <br />LO <br />r <br />LO L � <br />E <br />/� <br />co <br />o <br />Z <br />(a <br />Z <br />7 <br />E O <br />y <br />Nco <br />M <br />t1 <br />E <br />U <br />ems. <br />cc <br />Q 0 <br />C <br />-� <br />JOB <br />NO: <br />23-06133 <br />SCALE : <br />AS NOTED <br />SHEET NO. <br />5 <br />