Laserfiche WebLink
....•..,....w..,...,���,.L���.,� b.w.�+��.�w•wrurw�ruauwrkuewruiruiu�a�uir�• ni wl LLY isuu�I��i,14r�W�YYWU,YYuYlJ1111iI�JN9�Ylilli� <br />ATTIC VENTILATION CALCULATIONS <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 />SQINof <br />SQIN. of <br />Ventilators <br />ventilation <br />soffit <br />ventilation <br />vented <br />t d <br />b prove <br />d id <br />. . <br />Ventilation <br />. <br />Ventilation <br />(See Elev ) <br />re <br />required <br />q needed <br />required <br />soffit <br />by upper <br />needed <br />ventilators <br />Main <br />19 <br />2 <br />Floor <br />2276 <br />2185 <br />312 <br />1092 <br />78 <br />546 <br />561.0 <br />285.0 <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 FLORIDA BUILDING CODE 7TH EDITION (2020) RESIDENTIAL. <br />ROOF PLAN - ELEV-Al <br />SCALE: %4'=1'-0" <br />I Attic Ventilation I <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 138 SQ. IN, OF NET FREE AREA / UNIT <br />• SOFFIT VENTS 7 SQ. IN. OF NET FREE AREA / SQ. FT. <br />• STUCCO SOFFIT VENTS - 126 SQ. 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 />c� <br />0 <br />N <br />1 <br />�fl <br />t <br />N <br />O <br />kCNv <br />ri <br />• V <br />t+h;• P� <br />� <br />it <br />ND <br />r: <br />IS <br />w <br />4!4 <br />r•,y-� <br />4 <br />1w <br />4C, <br />40 1 <br />d� <br />J ` �} <br />To the best of the Engineers knowledge, information and belief, <br />the structural plans and specifications contained within <br />these <br />drawings comply with the 2020 <br />Florida Building Code <br />- <br />Residential 7th Edition. Engineers signature and seal <br />is only for <br />the structural engineering portions of the drawing pages bearing <br />Engineer's signature and seal. <br />W <br />Q <br />v E <br />o co g ca st <br />N N <br />N Q r -1LL <br />W J <br />a- <br />H! <br />� <br />Q <br />cnr-- 1-�'R - w <br />N O EL — <br />wa <br />0 <br />JLLLL u <br />O <br />Z <br />_ m C I_ O <br />— <br />_r_ ° (I C) <br />-:5'CNto U O J <br />Ca <br />a <br />W <br />z <br />CL IL <br />��OjO' d ¢ <br />00 d <br />N M z Of SQ 0 <br />O U C¢J � N <br />Z <br />WIR <br />DO❑ <br />� N O <br />O <br />Z <br />z <br />o_ <br />n <br />Ln <br />z �O <br />W � <br />OLU <br />U0 o <br />c N <br />U <br />W m <br />pE <br />o•... <br />w N <br />¢ <br />to, <br />N - <br />44 <br />O <br />w <br />Mw <br />M <br />z <br />¢ <br />J <br />c <br />zot' <br />g <br />�P <br />ppU <br />WX <br />I <br />a <br />I <br />2O <br />V <br />o¢ <br />U <br />O, <br />C> E <br />Nro <br />It <br />p <br />¢ 0 <br />z <br />� <br />CO C <br />Y <br />U <br />W. E <br />0 <br />Z <br />N <br />J <br />tim <br />¢ ° <br />z <br />'¢W <br />cn <br />3 <br />o�d <br />z z <br />30 <br />W <br />Q_ <br />w LL <br />a <br />N W <br />=� <br />CZ)wa <br />< <br />�00 <br />CD <br />co <br />a x <br />C <br />O <br />O <br />1 <br />V) <br />> Lo <br />^ <br />V <br />N <br />N <br />ca <br />ca <br />0 <br />L <br />Al <br />W <br />1` <br />0 <br />O <br />0 <br />•' <br />r� <br />Q <br />> <br />O <br />r1 <br />o <br />(j <br />l� <br />m <br />O <br />�..../ <br />N <br />E <br />r <br />co o <br />d7 <br />Z <br />r <br />NLO <br />r <br />E <br />E <br />M <br />o <br />z <br />m <br />z <br />E E 10 <br />N <br />c <br />c° <br />E o <br />U J <br />_0 is <br />Q ❑ <br />(1)a <br />JOB <br />NO: <br />21-2031 <br />SCALE : <br />AS NOTED <br />SHEET NO. <br />5 <br />