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ATTIC VENTILATION CALCULATIONS - Al <br />Attic Ventilation <br />ATTIC VENTILATION REQUIRED <br />UPPER VENTILATION PROVIDED 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 11150 of the area of the vented <br />1/150 Rule 1/300 Rule <br />Off -Ridge 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 />SQ. FT. SQ. IN. of <br />Provided <br />by Upper <br />"CALCULATIONS BASED ON THE FOLLOWING VALUES, SEE ROOF PLAN" <br />SPACE <br />SQ. FT. Total SQ. <br />SQ. IN. of of ventilation to <br />of vented IN. of <br />SQIN. of SQ. IN, of Ventilators <br />(Values to be verified with Manufacturer Specifications) <br />. OFF -RIDGE VENTS 138 SQ. IN. OF NET FREE AREA / UNIT <br />ventilation vented be provided <br />soffit ventilation <br />. <br />Ventilation Ventilation (See Elev) <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 />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 SO. 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 />0 <br />I <br />I <br />I <br />ZONE-1 <br />I <br />I <br />I <br />I <br />ATTIC SPACE <br />I <br />2373 SQ. FT. <br />I <br />I <br />I <br />��Q <br />I <br />I <br />I <br />a <br />U) <br />_0 <br />N <br />I <br />I <br />I <br />5:12 SLOPF� <br />I <br />I <br />I <br />I <br />I— <br />I W <br />' <br />u_ <br />RIDGE <br />O <br />;12� SLOPE <br />14'-0' RIDGE VENT <br />Lj <br />O <br />� <br />� <br />ti''o JP <br />o <br />r <br />T-0" <br />11'-0' RIDGE VENT <br />RIDGE <br />W <br />a <br />I I <br />ICLI <br />3'-0' <br />`\l <br />r <br />Cn <br />I <br />I <br />I <br />I <br />I <br />4'-O' RIDGE VENT <br />RIDGE <br />I <br />I <br />W Ia <br />0 <br />U) <br />co <br />I <br />I <br />ROOF <br />PLAN - ELEV-Al- <br />SCALE: %4"=1'4" <br />cau <br />0 <br />00 as -o <br />c3r- �� o <br />LL <br />Q . .ram. N ,✓ <br />�1: CU <br />sL <br />U W <br />es� o <br />CJ <br />3 chi= <br />CM <br />i cu co <br />� c e <br />tN L <br />s E <br />+� o <br />a ca <br />0 <br />M <br />O <br />GV <br />0 <br />Cj <br />No 'P` i '! 0 <br />r <br />E OF <br />1 IJ' '• lrj <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 Florida Building Code - <br />Residential 7th Edition. Engineers signature and seal is only for <br />the structural engineering portions of the drawing pages bearing <br />Engineer's signature and seal. <br />fA <br />W 'q E S <br />N <br />pw <br />O N <br />N tT rp 9k <br />r 4k <br />0 5�c? <br />M (1) r` r LL Lu w <br />NJ N v a- o- <br />of W <br />a C J 0 Y U <br />J L' Z <br />z 0 o <br />zL N VO' 0 O <br />4 m w 0 <br />3 R 3 N V J - Q <br />W N2�z J C) Z <br />W <br />Z N M � � O <br />IL0 IL <br />F=.. <br />z 00 000 <br />W <br />M � <br />N o <br />O <br />Z W N <br />Z � <br />Q <br />J — <br />L1 ll') <br />N <br />to a <br />U <br />s <br />OW C <br />(� l— rn <br />U <br />W J <br />_ E <br />m c4 <br />z I.✓ <br />U o <br />0o� <br />s <br />N O� <br />o <br />LY <br />M <br />M <br />J <br />J <br />Z ¢ <br />5� <br />h <br />w <br />z <br />Q <br />LL E <br />N <br />¢ <br />zo <br />p <br />Z <br />a O <br />V <br />W <br />z® <br />C6 <br />1--- f0 <br />O C <br />o <br />� a <br />a <br />K <br />00 <br />DO <br />O <br />z <br />C <br />a� <br />¢o <br />[ <br />w� <br />m <br />L <br />< <br />p Y <br />W <br />m O <br />Z zw <br />m J <br />m <br />< w <br />z Z <br />cn <br />o <br />go <br />az <br />W <br />O <br />wLL <br />� <br />m <br />O <br />J W <br />W <br />a <br />10 <br />M <br />zl< <br />00 3 <br />N O <br />LO <br />LO, <br />rn <br />Q <br />o <br />— <br />00 <br />� <br />� <br />M <br />O <br />� <br />� Y � <br />T- <br />0 <br />N <br />M <br />• <br />m L <br />LO <br />'• <br />' Cn <br />Q� <br />p N <br />0 <br />LL N <br />Vl <br />(71 00 <br />LO <br />r <br />Q 't CO <br />r <br />E <br />c+') <br />= <br />o <br />z <br />CID <br />E N <br />CU <br />a <br />;_ <br />U _j 1cc <br />Q a <br />� <br />JOB <br />NO: 23-02469 <br />SCALE : AS NOTED <br />SHEET NO. <br />5 <br />.. -=...-.wuo.m.anW,�,«s.r�..a.wty ,ip "R .!',-. fil,�� mr "r: •iirye 5"�5 _.�.[#�Ylilt �W .. �Q61.�.-azza�L.,W L.,.Aiir :; .. _..1.�.��ire , .. -_...Q '.?: C7�„ m?'.7.11 r ���;t,;._ <br />