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F <br />U <br />C <br />U <br />a <br />CS <br />H <br />U <br />U <br />C <br />u <br />c <br />U <br />G <br />U <br />VE <br />\/rAlTrr% n/1rrIT AA nn rT <br />V 1-111 LV WWI 1 11 T W%A. 1 I. V I -IV I L.V VVI I I I T W%A. I I. <br />D <br />J <br />J <br />Attic Ventilation to be in compliance with the Florida Building Code 5th Edition <br />(2014) 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 comice 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 />• O'HAGIN WEATHERMASTER (Shingle Roof) - 72 SQ. IN. OF NET FREE AREA/ FT. <br />' (Sq. Ft. Soffit Needed) x 7 = (Sq. In. Needed) 172 = Amount of O'Hagin Vents Needed <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 />• O'HAGIN (Tile Roof) - 86.25 SQ. IN. OF NET FREE AREA / VENT <br />**Formula: (Sq. Ft. Soffit Needed) x 7 = (Sq. In. Needed) / 86.25 = Amount of O'Hagin Vents Needed <br />ATTIC VENTILATION CALCULATIONS - A <br />ATTIC VENTILATION REQUIRED <br />UPPER VENTILATION PROVIDED <br />1/150 Rule <br />1/300 Rule <br />Ridge Vent Amt <br />(No Upper Ventilators <br />(Must Provide Upper Ventilators) <br />(Ft.) <br />Off -Ridge Amt. <br />Req.) <br />Total Ventilation <br />ATTIC <br />Provided by <br />SPACE <br />SQ. FT. <br />Total SQ. <br />SQ. FT. <br />SQ. IN. of <br />Upper <br />Ventilators <br />SQ. IN. of <br />ventilation <br />of vented <br />IN. of <br />of <br />vented <br />ventilation to <br />be provided <br />SQ. IN. of <br />SQ. IN. of <br />(See Elev) <br />required <br />soffit <br />ventilation <br />soffit <br />by upper <br />Ventilation <br />Ventilation <br />needed <br />required <br />needed <br />ventilators <br />Main <br />22.0 <br />3.0 <br />Floor <br />3366 <br />3231 <br />462 <br />1616 <br />115 <br />808 <br />744.0 <br />330.0 <br />414.0 <br />(Zone 3) <br />0.0 <br />0.0 <br />0 <br />0 <br />0 <br />0 <br />0 <br />0 <br />0.0 <br />0.0 <br />0.0 <br />0.0 <br />0.0 <br />0 <br />0 <br />0 <br />0 <br />0 <br />0 <br />0.0 <br />0.0 <br />1 0.0 <br />"NOTE** <br />GENERAL CONTRACTOR MUST ENSURE THAT PROPER VENTILATION IS PROVIDED AT EAVES/SOFFITS AS <br />REQUIRED BY FBC 5th ED. RESIDENTIAL. <br />VENTED SOFFIT LEGEND <br />IF SOFFIT IS LABELED AS "NON -VENTING" FIRE PROTECTION WILL BE INSTALLED <br />AS REQUIRED BY SECTION R302 OF THE FBC 5th EDITION (2014) RESIDENTIAL. <br />IF <br />LABELED AS "VENTED", NO FIRE PROTECTION WILL BE REQUIRED. <br />• • <br />VENTED SOFFIT <br />ROOF PLAN -A <br />SCALE: %4"=V-0" <br />z M <br />o <br />O_ <br />z <br /><C <br />J <br />co z <br />0 <br />nU0n <br />1 <br />Q) C <br />(DM <br />w <br />U — <br />LU <br />O <br />m <br />E <br />o <br />in <br />(%) <br />o 0 <br />U <br />W <br />a)M <br />C @ M <br />h— E <br />— c0i <br />2 d Cl) <br />O 0 0 <br />Ua) <br />L lL W <br />P I <br />Y <br />U)Qa <br />Lo O v <br />Q m <br />ma o <br />A <br />1 <br />11 <br />cg1D. 17 <br />� <br />Urfa <br />f� b.obm) <br />0 " <br />W <br />'E.��.r�. <br />Z¢-�0) x' <br />`� <br />A N P_Qae .. <br />.w ..�li. <br />LL W a N a co 2/r rf•etsl,* <br />0 <br />O V <br />U O <br />To the best of the Engineer's knowledge, information, and <br />belief, the structural plans and specifications contained <br />within these drawings comply with the Florida Building <br />Code 5th Edition (2014) Residential. Engineer's signature <br />and seal is only for the structural engineering portions of <br />the drawing pages bearing Engineer's signature and seal. <br />i <br />O <br />O <br />Z N <br />OuN <br />1­4�o <br />> (n M C:)O <br />M <br />Q <br />Q - � <br />C)- M <br />QI Ufo <br />Q 00 <br />Q � <br />� <br />§ <br />Z fu <br />Lu C:) <br />W <br />J C) <br />Oz <br />wLL0 <br />Wm<Zff <br />U (N) 0 <br />O0 z Q U <br />zQQUQQ <br />_2?w <br />Z <br />uj <br />}aUcl�01rn <br />r / 1 <br />�L <br />04MQ� O <br />= = W N <br />I—a0Z <br />= w <br />OJ <br />rl <br />L0 <br />17-4 <br />Ln <br />rl <br />J <br />' O <br />` <br />< N (v) 0 <br />0 O � <br />z <br />O <br />O <br />rw <br />t-~Zce <br />tpIw� <br />0 <br />z a,� O rz Z <br />(� <br />L <br />Z <br />,0 <br />"' '.0 z 0 0 <br />Q U - QU� <br />j <br />LU <br />N <br />l__ g �y ci <br />88'�82 <br />Z <br />i7nLULU <br />0 <br />< <br /><<w0o <br />? Q <br />n <br />clL <br />O <br />T� <br />�UWC <br />w <br />as~� <br />0 <br />O <br />" <br />z <br />O <br />O <br />O <br />g <br />IZ-.I <br />J <br />a <br />SCALE : AS NOTED <br />PLOT DATE: 12/7/2012 <br />TECH: MJAMES <br />VERSION NO. <br />100 <br />JOB NO: 17-5174 <br />SHEET NO. <br />4 <br />