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0 <br />3 <br />s <br />m <br />u7 <br />a� <br />c <br />-v <br />S <br />10 <br />O <br />J <br />if ) <br />00 <br />I <br />N <br />/ <br />OO <br />a� <br />N <br />to <br />O <br />J <br />L0 <br />00 <br />I <br />O <br />CV <br />C <br />a> <br />v <br />S <br />/ <br />v <br />0 <br />3 <br />O <br />cV <br />N <br />0 <br />Q <br />y <br />N <br />E <br />0 <br />S <br />0 <br />C <br />J <br />L7 <br />.0+ <br />U <br />C <br />U <br />I <br />C" <br />y.+ <br />U <br />N <br />d <br />U <br />a <br />z <br />I <br />0 <br />Y <br />C <br />O <br />O <br />J <br />N <br />LZ <br />N <br />O <br />C" <br />r� <br />t� <br />O <br />a <br />O <br />C-4 <br />O <br />r` <br />0 <br />v <br />to <br />ATTIC VENTILATION CALCULATIONS - 131 (TRB) <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 />22.00000 <br />2.000000 <br />Floor <br />2000 <br />1920 <br />274 <br />960 <br />69 <br />480 <br />0 <br />6136.0 <br />330.0 <br />276.0 <br />(Zone 1) <br />**NOTE** <br />GENERAL CONTRACTOR MUST ENSURE THAT PROPER VENTILATION IS PROVIDED AT EAVES/SOFFITS AS <br />REQUIRED BY FBC 6th ED. RESIDENTIAL. <br />ROOF PLAN - ELEV-Bl <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 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 />• 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 />Coastal Flashings <br />All flashing material for coastal locations (ex: within 3,000 feet of the <br />ocean) shall be corrosion resistant material (ex: zinc and/or stainless <br />steel) and shall be selected for compatibility with adjacent wood <br />preservatives per the manufacturers recommendations. <br />1 <br />rLl"IJ] <br />r' <br />C� <br />i <br />ow <br />�JCK« <br />V'N <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 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 />9) <br />H <br />Q <br />op <br />4. U N O# <br />O O O pr tD N <br />ci <br />C) r C u7 N J <br />Cl) N Ce)r a)# Co LL <br />3 -� LL Lu <br />J d <br />LL N LL <br />a <br />uj c) W <br />aimLU <br />s ° a..a <br />Z <br />-0rQ� W O <br />z <br />0 <br />m a� o_ = m O <br />mg¢ <br />W <br />'won <br />Z <br />IL LL <br />N Q coZ V 0 J <br />z <br />° L) ❑OO <br />W <br />Z N <br />S <br />W O <br />r <br />V <br />O <br />cl- <br />N <br />U) V, <br />M <br />a <br />cr) u- <br />(0 <br />w $ <br />E, <br />0 <br />to <br />w f <br />c o <br />o <br />� <br />U 00 <br />d <br />w � <br />0 8 <br />� <br />U o <br />• <br />ti <br />O <br />Cl) <br />w <br />Z <br />Ch <br />o <br />LL. <br />Q E <br />� � <br />W ¢ <br />wO <br />z <br />Z o <br />Z® <br />0 d <br />CU <br />0. <br />I— '6 <br />O E <br />KO <br />&¢ <br />o <br />0O <br />°o< <br />O <br />o <br />¢❑ <br />aZ <br />�J <br />i <br />ro <br />C <br />Zz <br />OY <br />N <br />ms <br />O <br />Oz <br />Z <br />J <br />m <br />Q W <br />�z <br />u� <br />N <br />¢"' <br />o¢ <br />�o <br />W <br />Q� <br />T 3 <br />¢ E <br />a <br />'Z <br />U <br />¢o <br />z <br />Y <br />xF <br />XO <br />C:)CD <br />W ¢ <br />R <br />a � <br />V <br />83 <br />0 M <br />= <br />y > <br />CC <br />L <br />m <br />W <br />cc <br />.>LO <br />I� <br />N <br />i <br />T— <br />�1 <br />0 <br />0 <br />O <br />O <br />m <br />O <br />•T <br />J O <br />T <br />T <br />i I� <br />O <br />T <br />LO <br />c <br />M T <br />.. <br />O <br />c6 <br />Z <br />�_ <br />E Q <br />to <br />`� <br />Z <br />N <br />a <br />E <br />U J <br />Q 0 <br />C <br />J <br />JOB <br />NO: <br />20-1785 <br />SCALE : <br />AS NOTED <br />SHEET NO. <br />5 <br />