Laserfiche WebLink
ATTIC VENTILATION CALCULATIONS <br />- B1 TRB) <br />Attic Ventilation <br />ATTIC VENTILATION REQUIRED <br />UPPER VENTILATION PROVIDED <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 />1/150 Rule <br />1/300 Rule <br />Ridge <br />Off -Ridge <br />space. The ventilating area may be reduced to 11300 provided that at least 40% <br />(No Upper Ventilators <br />(Must Provide Upper Ventilators) <br />Vent Amt <br />Amt. <br />but no more than 50% of the required ventilation is provided in the upper portion of <br />Req.) <br />(Ft.) <br />the space to be venblated.Upper ventilators shall be located no more than 3 feet <br />Total <br />(measured vertically) below the ridge or highest point of the space, with the <br />Ventilation <br />balance of the required ventilation provided by eave or cornice vents. <br />ATTIC <br />Provided <br />-CALCULATIONS BASED ON THE FOLLOWING VALUES, SEE ROOF PLAN** <br />SPACE <br />SO. IN. SQ. FT. <br />Total SQ. <br />SQ. FT. <br />SQ. IN. of <br />by Upper <br />(Values to be verified with Manufacturer Specifications) <br />of <br />of vented <br />IN. of <br />of <br />ventilation to <br />SQ. IN. of <br />SQ. IN. of <br />Ventilators <br />. OFF -RIDGE VENTS 138 SO. IN. OF NET FREE AREA! UNIT <br />ventilation <br />required soffit <br />ventilation <br />vented <br />be provided <br />Ventilation <br />Ventilation <br />(See Elev) <br />.SOFFIT VENTS - 7 SQ. IN. OF NET FREE AREA I SQ. FT. <br />needed <br />required <br />sofrd <br />by upper <br />. STUCCO SOFFIT VENTS - 126 SQ. IN. OF NET FREE AREA / SQ. FT. <br />needed <br />ventilators <br />*If not enough vented soffit is provided due to fire protection, the contractor shalt use the <br />following approved vents: <br />• LOMANCO DECK -AIR (Shingle Roof) - 9 SO. 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 />Main 21 2 <br />Floor 2377 2282 326 1141 81 570 <br />(Zone 1) 315.0 276.0 <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 />591.0 <br />ROOF PLAN - ELEV-B1 <br />SCALE: %4"=1'-0" <br />N <br />O <br />N <br />(V <br />CV <br />M <br />,d0y�1143i1;lt� o <br />L-E (.tin O j'�i <br />�.`�0��.•�C r rV •s'1✓s �.� <br />• <br />'' Fd0 P 78750 <br />: a t"E <br />CF .` <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 2020 Florida Building Code - <br />Residential 7th 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 />W <br />!• <br />a <br />o E <br />8 �# <br />Lo <br />to <br />NJ <br />Q <br />U)Mv� L Y <br />J LL LL Lu <br />a w <br />O <br />Z <br />ipc� O <br />jp N co L.L O J <br />ma <br />-rn <br />< ¢ <br />z <br />ILW <br />a <br />N M Z -W y 0 <br />Z <br />ODUmai <br />W <br />V M � <br />Z N � <br />Z � <br />Z n <br />J <br />/n <br />N <br />M <br />♦(nLZ .3 <br />L <br />W <br />V <br />O <br />W s <br />V) <br />c �' <br />Ln <br />w � <br />zL <br />L <br />U o <br />c d <br />0 <br />Q Y <br />• <br />N <br />(O� <br />M <br />4 <br />W <br />g <br />O <br />ZZZ <br />Q <br />J <br />L.L <br />Ha <br />f0 <br />� <br />>Z <br />Q <br />H <br />i <br />R0 <br />O <br />oa <br />00 <br />z <br />- <br />C <br />O fo <br />zr <br />az <br />p <br />O � <br />wz <br />N <br />L <br />o <br />< o <br />¢� <br />m `< <br />ro <br />- <br />�yU <br />y0 <br />O <br />Zz <br />z <br />QW <br />n <br />a <br />W <br />�° <br />— <br />o <br />� <br />w <br />O <br />>_ <br />a� <br />003 <br />VO <br />z� <br />�O <br />> LnCd <br />J <br />O <br />Cd <br />L <br />1= <br />0 <br />> <br />U <br />d' <br />�— <br />W <br />N <br />Q <br />Y <br />0 <br />O <br />CL <br />C m <br />o <br />... <br />E <br />d. <br />= N <br />O <br />r <br />O1 <br />.� <br />T <br />N <br />r <br />rn <br />E <br />c CV <br />M N <br />co <br />z <br />z <br />E O <br />y <br />ii <br />E <br />0 <br />a o <br />JOB <br />NO: <br />21-4279 <br />SCALE : <br />AS NOTED <br />SHEET NO. <br />5 <br />