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N <br />N <br />00 <br />0 <br />4 <br />0 <br />m <br />v <br />ATTIC VENTILATION CALCULATIONS - Al (TRA) <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 />IN. of <br />vSQ.entilation of vented <br />ventilation <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 Elev) <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 />23.00000 <br />1.000000 <br />Floor <br />2008 <br />1928 <br />275 <br />964 <br />69 <br />482 <br />0 <br />483.0 <br />345.0 <br />138.0 <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-Al <br />SCALE: f4"=l'-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 manufacturer's recommendations. <br />a <br />\1\t fitrA�i <br />N <br />• <br />i <br />�„/ V r. � VV p <br />F3'J <br />to <br />��� RQFESS\O� <br />,a\ <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 />010 E pipp osp� <br />C) "i fV '09C <br />i i <br />it <br />O O O J J <br />"- 0U_ u. <br />M 04 00 <br />M ti <br />O <br />•7 J y? LJL J a a <br />LL N LL <br />Q <br />fq C" W <br />>�� da WY <br />0ixoo <br />Z <br />-aM, <br />N 0 m m C <br />W <br />Z <br />M E T6 o a <br />O _ <br />a <br />Q <br />Z_( cous <br />.. r� t- J <br />Z <br />< <br />❑0�❑ <br />W <br />M <br />pp <br />Z N O <br />N <br />z oWON <br />J M <br />d N <br />N <br />M <br />Z � <br />o <br />U LL <br />,TVS <br />.O <br />W 0d <br />Q <br />^ <br />TC <br />T <br />W I <br />E <br />O <br />V <br />win <br />r— <br />U W <br />w � <br />r— 2 E <br />o S <br />1 <br />zl�. <br />= <br />U a <br />¢ 0 <br />sm <br />ti <br />C <br />CD <br />W <br />CO <br />ch <br />o 1 <br />Z <br />2 <br />� <br />E <br />Q <br />Z <br />Zs <br />Q <br />wz <br />Z <br />Z@ <br />F- <br />g <br />U <br />00 <br />p <br />O <br />N fu <br />I. <br />a <br />¢o <br />¢ <br />wz <br />L <br />• @ <br />jC <br />_ <br />z <br />YOLL <br />U <br />N <br />m <br />O <br />Z <br />Z <br />N <br />J <br />N <br />m <br />C� <br />0w <br />Q W <br />o <br />3 <br />U <br />W <br />ao <br />dw m <br />�k <br />Cj <br />O <br />Jz <br />w� <br />sr <br />O <br />�0 <br />Mill <br />cD <br />V <br />z 6 <br />a <br />�U <br />M <br />J <br />' M <br />a; <br />m <br />L <br />9 <br />c9 <br />> <br />r— <br />> <br />0 <br />m <br />_Cr" <br />v <br />r <br />O <br />04 <br />J <br />L <br />O 00 <br />LO <br />r <br />r <br />cfl N <br />r <br />E <br />r <br />M <br />r r-- <br />° <br />Z <br />M <br />z <br />E Q <br />�; <br />m <br />m <br />C CU <br />FLU <br />J <br />Q <br />J <br />JOB NO: <br />20-0565 <br />SCALE : <br />AS NOTED <br />SHEET NO. <br />5 <br />