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cn <br />LO <br />Q <br />-ch <br />rn <br />LO <br />L <br />0 <br />Vi <br />O <br />Q <br />cD <br />O <br />0 <br />O <br />0 <br />I <br />J <br />L0 <br />L0 <br />L <br />V <br />V) <br />C) <br />Q C2 <br />0 <br />0 <br />J <br />C" <br />0 <br />I <br />0 <br />C <br />vim) <br />-7pO <br />Q <br />C <br />a <br />C) <br />/ <br />d <br />E <br />E <br />O <br />S <br />0 <br />v <br />a0i <br />J <br />y <br />N <br />ti <br />E2 <br />e <br />VI <br />U <br />.0 <br />d <br />0 <br />U <br />J <br />N <br />L7 <br />N <br />O <br />00 <br />v <br />0 <br />0 <br />a <br />cV <br />C'4 <br />O <br />08 <br />0 <br />45 <br />5 <br />0 <br />Cn <br />Cn <br />ATTIC VENTILATION CALCULATIONS - Al <br />Attic Ventilation <br />ATTIC VENTILATION REQUIRED 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 1/300 Rule Off -Ridge Ridge <br />space. The ventilating area may be reduced to 1/300 provided that at least 40% <br />(No Upper Ventilators Vent AmAmt. t <br />(Must Provide Upper Ventilators) <br />but no more than 50% of the required ventilation is provided in the upper portion of <br />Req.) (Ft.) <br />the space to be ventilated. 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 Provided <br />SPACE SQ. FT. SQ. IN. of by Upper <br />**CALCULATIONS BASED ON THE FOLLOWING VALUES, SEE ROOF PLAN** <br />SQ. IN. of SQ. FT. Total SQ. <br />of ventilation to Ventilators <br />(Values to be verified with Manufacturer Specifications) <br />IN of vented IN. of . of SQ. IN. of <br />SQ. <br />ventilation vented be provided (See Elev) <br />. OFF -RIDGE VENTS 138 SO. IN. OF NET FREE AREA / UNIT <br />SOFFIT VENTS 7 SQ. IN. OF NET FREE / SO. FT. <br />required soffit ventilation soffit b upper Ventilation Ventilation <br />y u pp <br />. AREA <br />needed required <br />STUCCO SOFFIT VENTS 126 SQ. IN. OF NET FREE AREA / SQ. FT. <br />needed ventilators <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) 19 = Linear Ft. of Deck -Air Needed) <br />Main <br />28 1 <br />Floor <br />2373 2278 325 1139 81 570 558.0 <br />(Zone 1) <br />420.0 138.0 <br />**NOTE'* <br />GENERAL <br />CONTRACTOR MUST ENSURE THAT PROPER VENTILATION IS PROVIDED AT EAVES/SOFFITS AS <br />REQUIRED BY FLORIDA BUILDING CODE 7TH EDITION (2020) RESIDENTIAL. <br />o <br />M I <br />ui <br />1 <br />I <br />a <br />O <br />J <br />I <br />I <br />T <br />I <br />I <br />o <br />FD I <br />RIDGE I <br />I <br />I <br />4'-O' RIDGE VENT <br />I I <br />I I <br />w Ia <br />O <br />a <br />° <br />y <br />U) <br />T <br />I I <br />I <br />L6 <br />I I <br />I <br />RIDGE <br />11'-0' RIDGE VENT <br />L <br />O <br />I 5:12SLOPE z <br />co <br />� <br />> <br />14'-0' RIDGE VENT <br />u- <br />O <br />O <br />RIDGE <br />0 <br />I <br />I <br />I <br />I <br />5:12 SLOPE <br />� <br />I <br />I <br />I <br />I Q <br />I �\ <br />I <br />� <br />I <br />0 <br />I <br />T <br />' <br />I <br />I <br />I <br />ZONE-1 <br />I <br />ATTIC SPACE <br />I <br />2373 SQ. FT. <br />0 <br />1 0 <br />ROOF PLAN - ELEV-Al_ <br />SCALE: %4"=1'-0" <br />N <br />0 <br />coa <br />c <br />CV <br />-a <br />11•� <br />ar LW <br />� W <br />CD <br />_ CC CJ <br />CV <br />N CC = i <br />N CV t <br />y O tC <br />� <br />d r GVCD <br />d <br />� 3 � <br />c c� <br />s E <br />C9 <br />a L' <br />ta'lift. <br />VIV <br />� \115 <br />CV <br />g^: <br />l t•y%j.g i.�k{`��. <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 <br />Florida Building Code - <br />Residential <br />7th Edition. 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