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cV <br />N <br />L0 <br />ATTIC VENTILATION CALCULATIONS - 131 <br />ATTIC VENTILATION REQUIRED <br />UPPER VENTILATION PROVIDED <br />1/150 Rule <br />1/300 Rule <br />Ridge <br />Off -Ridge <br />(No Upper Ventilators <br />(Must Provide Upper Ventilators) <br />Vent Amt <br />Amt. <br />Req.) <br />(Ft.) <br />Total <br />Ventilation <br />ATTIC <br />Provided <br />SPACE <br />SQ. FT. <br />Total SQ. <br />SQ. FT. <br />SQ. IN. of <br />by Upper <br />SQ. IN. of <br />of vented <br />IN. of <br />of <br />ventilation to <br />SQ. IN. of <br />SQ. IN. of <br />Ventilators <br />ventilation <br />soffit <br />ventilation <br />vented <br />be provided <br />Ventilation <br />Ventilation <br />(See Elev ) <br />required <br />needed <br />required <br />soffit <br />by upper <br />needed <br />ventilators <br />Main <br />0 <br />0 <br />Floor <br />35 <br />34 <br />5 <br />17 <br />1 <br />8 <br />0.0 <br />0.0 <br />0.0 <br />(Zone 1) <br />Upper <br />g <br />2 <br />Floor <br />1533 <br />1472 <br />210 <br />736 <br />53 <br />368 <br />411.0 <br />135.0 <br />276.0 <br />(Zone 2) <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 />'-ONE-1 <br />ATTIC SPACE <br />►5 SQ. FT. <br />ROOF PLAN - ELEV-Bl <br />SCALE: %4rr=V-0rr <br />Attic Ventilation <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 />space. The ventilating area may be reduced to 1/300 provided that at least 40% <br />but no more than 50% of the required ventilation is provided in the upper portion of <br />the space to be ventilated. Upper ventilators shall be located no more than 3 feet <br />(measured vertically) below the ridge or highest point of the space, with the <br />balance of the required ventilation provided by eave or cornice vents. <br />**CALCULATIONS BASED ON THE FOLLOWING VALUES, SEE ROOF PLAN** <br />(Values to be verified with Manufacturer Specifications) <br />• OFF -RIDGE VENTS 136 SQ. IN. OF NET FREE AREA / UNIT <br />• SOFFIT VENTS 7 SQ. IN. OF NET FREE AREA / SQ. FT. <br />• STUCCO SOFFIT VENTS - 126 SO. IN. OF NET FREE AREA / SQ. FT. <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 />offillOtttt/V' <br />_ CIA <br />U. �0 •�� d <br />C <br />F L.0 <br />•'••�"' <br />�. ° <br />•.•' <br />try <br />�� <br />o <br />To the best of the Engineers 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 />Engineers signature and seal. <br />N <br />0 <br />W <br />E v o�p 10 � <br />N <br />IQ <br />V <br />Q <br />N <br />O C n <br />j CO (D ILL <br />co N#. W <br />M <br />0 <br />0 <br />u�tirLo Ewa <br />Mv LL a. YYn <br />ccLLu- a U 5 <br />O <br />7S <br />Z <br />0 <br />V � <br />L <br />0 <br />��Nco mO—j <br />W <br />crnrn ¢ a <br />a <br />Z <br />00 LO N M Z x N 0 <br />< <br />< h <br />Z <br />OULL <br />❑�❑ <br />W <br />V Cl) <br />z N <br />z � co <br />J <br />n <br />1 , <br />V 0 <br />lL <br />T <br />V'�`y <br />ri <br />V) <br />OI^ <br />,,, g <br />C) cli <br />EE <br />L <br />t <br />(, o <br />N <br />14 <br />Oto <br />W <br />M <br />h <br />O <br />Z <br />Q <br />f <br />Ll- <br />pi0 <br />Z o <br />oo <br /><R <br />_® <br />U <br />ro <br />XO <br />oa <br />0000 <br />zUp <br />N i <br />a� <br />ao <br />OQ <br />ww <br />� <br />n3 <br />NC <br />_ C <br />¢o <br />Yoz <br />U <br />Nm <br />m� <br />0 <br />Z� <br />z <br />J <br />¢^ <br />QW <br />gz <br />N <br />fn <br />w <br />Z <br />aU <br />3 <br />as <br />�k <br />CD <br />CDa= <br />w <br />�r <br />O <br />Cp <br />�t <br />z¢To <br />is <br />C C:)i <br />O <br />> <br />N <br />L.L <br />0 <br />rn <br />W <br />m <br />� <br />t4 <br />0 <br />W <br />O <br />C) <br />> <br />U <br />r <br />� <br />N <br />^ <br />Q <br />rro <br />U <br />' <br />O <br />C) <br />C co <br />C <br />W <br />Lo <br />co <br />T�[ <br />v <br />N <br />• <br />= C)° <br />d' O <br />LO <br />LO <br />r <br />CN <br />y <br />o <br />Z <br />CU z <br />, <br />E O42) <br />FL <br />0 <br />¢ o <br />JOB <br />NO: <br />21-5013 <br />SCALE : <br />AS NOTED <br />SHEET NO. <br />5.0 <br />