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rn <br />3 <br />v <br />S <br />4 <br />C <br />C <br />S <br />00 <br />No <br />J <br />L0 <br />O <br />I <br />0 <br />C <br />N <br />.D <br />00 <br />O <br />LO <br />J <br />rO <br />LO <br />O <br />I <br />N <br />ATTIC VENTILATION CALCULATIONS - Al (TRA) <br />ATTIC VENTILATION REQUIRED <br />UPPER VENTILATION PROVIDED <br />1/150 Rule <br />Rule <br />Ridge <br />Off -Ridge <br />(No Upper Ventilators <br />de Upper Ventilators) <br />(Must Provide U <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 />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: %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 manufacturer's recommendations. <br />G <br />0 <br />M, <br />i <br />f <br />SE <br />NT <br />Ul <br />W. <br />. 4L <br />a\\ <br />,f aF,It/lf i 111111110 <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 2017 Florida Building Code - <br />Residential <br />6th Edition. Engineers signature and seal is only for <br />the structural engineering portions of the drawing pages bearing <br />Engineers signature and seal. <br />W�E <br />Q <br />Lo 00 Co <br />_ N (p #pppppp <br />N <br />Q <br />0 0 0 0)cif J J <br />O N N N LL LL <br />CO <br />H <br />Z, a: LiLLaa <br />a <br />co r <br />a� mu 3 n a= O <br />Z <br />-0 U) <br />0m0❑ <br />�QCD <br />'mo�CO mi <br />W <br />4= <br />S E T �❑ a 0 <br />Z <br />LLW <br />Of _� N O y 2Q <br />NQ(MZ U 0 J g <br />Z <br />OU ❑❑❑❑ <br />W <br />M <br />(D <br />7 <br />z m MOO <br />_ <br />W W <br />z iz <br />(D <br />J (7 <br />CL O <br />M <br />Nn <br />t0 <br />Z o <br />W <br />.0 <br />V�- Y <br />w Q <br />n <br />a <br />N � <br />N <br />EO <br />N <br />f— o <br />U m <br />w m <br />m E <br />zr— <br />[ <br />��V <br />() ) N <br />c `n � <br />Q u 0 <br />®Q <br />o <br />w <br />z <br />C13 <br />� <br />ILL.zo <br />Q 0 <br />✓+ <br />p <br />Wo <br />Z <br />¢ <br />g <br />�o <br /><� <br />z® <br />oa <br />U <br />CU <br />C <br />O C <br />X O <br />O¢ <br />az <br />Cc) O <br />Z d <br />C <br />N <br />4) <br />.. 0 <br />¢o <br />W <br />' ra <br />U <br />- <br />Z <br />0 < <br />y <br />m(D <br />O <br />Z <br />>Z <br />Z <br />ZF <br />J <br />m <br />7� <br />¢ <br />2N <br />N <br />oa <br />'�zo <br />LL <br />a <br />mw <br />=I= <br />¢o 3. <br />3 <br />CD <br />u i Y <br />a o <br />cD <br />of <br />Z¢ <br />o~ <br />U 3 <br />E2 <br />co <br />L <br />m <br />0 <br />'' <br />c <br />00 <br />0 <br />a <br />Cfl <br />N <br />r <br />CD <br />•— <br />Z <br />i.f) <br />r <br />N N <br />r <br />O <br />T 00 <br />V�i <br />O <br />z <br />E <br />E <br />a <br />U <br />Q p <br />JOB <br />NO: <br />20-0557 <br />SCALE : <br />AS NOTED <br />SHEET NO. <br />5 <br />"� _ �I _. . I I Ill 11 1. tl. it,ll 11 III IIiit'Ah-IlKillit W I'll I lklr'L4 <br />