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5:1♦ 2 SLOPE <br />ii <br />4'-0" OFF RIDGE VENT <br />WI <br />0 <br />� 5:12 <br />y/110 <br />4'-0" OFF RIDGE VENT <br />9'-O" RIDGE <br />W <br />a <br />O <br />J <br />(0 <br />N <br />T <br />ZONE-2 <br />ATTIC SPACE <br />1533 SQ. FT. <br />a <br />O <br />rn <br />N <br />a <br />M�� <br />w <br />IL <br />O <br />J <br />(n <br />6 RIDGE <br />W <br />a <br />O <br />J <br />N <br />LO <br />M <br />r <br />I <br />I <br />I <br />I <br />5:12 <br />SLOPE <br />W <br />CL <br />O <br />N <br />U <br />RIDGE <br />I <br />I <br />I <br />I <br />5:12' <br />J SLOPE <br />Mi4 <br />ATTIC VENTILATION CALCULATIONS - B1 <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 />b Upper <br />y pp <br />SQ. IN. of <br />ventilation of vented <br />IN. of <br />of <br />vented <br />ventilation to <br />be provided <br />SQ. IN. of <br />SQ. IN. of <br />Ventilators <br />(See SElev) <br />required soffit <br />ventilation <br />soffit <br />by upper <br />Ventilation <br />Ventilation <br />needed <br />required <br />needed <br />ventilators <br />Main <br />0.000000 <br />0.000000 <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 />9 <br />2.000000 <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 FBC 6th ED. RESIDENTIAL. <br />5:12 SLOPE <br />ZONE-1 <br />ATTIC SPACE <br />35 SQ. FT. <br />ROOF PLAN <br />SCALE:/4 "=1'-0" <br />Attic Ventilation <br />Attic Ventilation to be in compliance with the Florida Building Code 6th Edition <br />(2017) 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 11300 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 />• RIDGE VENTS 15 SQ. IN. OF NET FREE AREA / LINEAR FT. <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 />�����E!!lEt61{i�Otf!/llr,����i <br />laFtO WN <br />%. <br />SE <br />< <br />r <br />O• <br />ffi <br />. <br />!' fr�X°OFE • <br />•10 o <br />S <br />'�7`llt,eIttfEtil�tlti�l�\ <br />To the best of the Engineer's knowledge, information and belief, <br />the structural plans and specifications contained <br />within these <br />drawings comply with the 2017 <br />Florida Building Code - <br />Residential 6th Edition. Engineer's signature and seal is only for <br />the structural engineering portions of the drawing pages bearing <br />Engineer's signature and seal. <br />W <br />` <br />v E o�o <br />pnppp m <br />N it <br />O N <br />N <br />fh N n ff77ff <br />LL LL <br />q W <br />it <br />a <br />ED LL 52 <br />Q � <br />a� Y <br />024 <br />mm <br />OL <br />W <br />Ill <br />m o r.-�O <br />2 E °' O' <br />JOG <br />� O 0 <br />Z <br />111 <br />� r N 0L <br />N Q r>Z <br />Q O� <br />U F J 2222 <br />z <br />QIL <br />° Q <br />❑00❑ <br />W <br />c: C <br />z <br />z <br />z g <br />J C7 <br />LL <br />10 <br />N <br />M <br />N <br />z V <br />� o <br />u_ <br />CS <br />LLJ <br />0 <br />ry <br />N <br />c E <br />'® <br />'- 0 <br />U „ <br />w <br />o g <br />. <br />el <br />U <br />z <br />Q <br />t• Q <br />y <br />W <br />2 <br />M <br />1 <br />oY <br />w� <br />� <br />a_ <br />±p <br />E <br />a� <br />z® <br />O E <br />�o <br />ao <br />oa <br />¢ <br />&z <br />z <br />D <br />�o <br />adz <br />�z <br />mo <br />CO C <br />� <br />�YU <br />rTh O <br />Z3LL <br />T 2 <br />z <br />dl <br />z <br />W <br />Uok <br />g� <br />�LL <br />aZ <br />C) <br />�� <br />�Ia <br />53 <br />J <br />�N <br />'L <br />� <br />W <br />c <br />r <br />.> <br />co <br />N <br />^ <br />O <br />a..2c <br />-a <br />CO <br />to <br />Ul) <br />r <br />T <br />N <br />.� <br />= <br />Z <br />O <br />LO <br />,— <br />c N <br />T oo <br />T- <br />E <br />N <br />Ch <br />° <br />z <br />M <br />Z <br />E Q <br />y <br />r <br />c <br />io <br />o <br />JOB <br />NO: <br />20-0559 <br />SCALE : <br />AS NOTED <br />SHEET NO. <br />5.0 <br />