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F— <br />IL <br />d <br />cn <br />GV <br />H <br />IL <br />LL <br />0 <br />0 <br />F— <br />Z <br />L1J <br />V L111 L—LJ VVI 11 1 V4 VV(. 11. <br />IL <br />d <br />T <br />t• <br />F_— <br />LL_ <br />ILL- <br />0 <br />w <br />F— <br />Z <br />LU <br />Attic Ventilation <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 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 />• O'HAGIN WEATHERMASTER (Shingle Roof) - 72 SQ. IN. OF NET FREE AREA/ FT. <br />(Sq. Ft. Soffit Needed) x 7 = (Sq. In. Needed) / 72 = Amount of O'Hagin Vents Needed <br />• LOMANCO DECK -AIR (Shingle Roof) - 9 SQ. IN. OF NET FREE AREA / FT. <br />"Formula: (Sq. FL Soffit Needed) x 7 = (Sq. In. Needed) 19 3 Linear Ft. of Deck -Air Needed) <br />• O'HAGIN (Tile Roof) - 86.25 SO. IN. OF NET FREE AREA / VENT <br />"Formula: (Sq. Ft. Soffit Needed) x 7 - (Sq. In. Needed) 186.25 = Amount of O'Hagin Vents Needed <br />ATTIC VENTILATION CALCULATIONS <br />- A <br />UPPER VENTILATION PROVIDED <br />ATTIC VENTILATION <br />REQUIRED <br />1/150 Rule <br />1/300 Rule <br />Ridge Vent Amt <br />(No Upper Ventilators <br />(Must Provide Upper Ventilators) <br />(Ft.) Off -Ridge Amt. <br />Req.) <br />Total Ventilation <br />ATTIC <br />Provided by <br />SPACE <br />SQ. IN. of SQ. FT. <br />Total SQ. <br />SQ. FT. <br />of <br />SQ. IN. of <br />ventilation to <br />Upper <br />Ventilators <br />ventilation of vented <br />IN. of <br />vented <br />be provided <br />SQ. IN. of SQ. IN. of (See Elev) <br />required soffit <br />ventilation <br />soffit <br />by upper <br />Ventilation Ventilation <br />needed <br />required <br />needed <br />ventilators <br />Main <br />7.0 <br />4.0 <br />Floor <br />3235 <br />3106 <br />444 <br />1553 <br />111 <br />776 <br />657.0 <br />(Zone 1) <br />105.0 <br />552.0 <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 />0.0 <br />0.0 <br />0.0 <br />0 <br />0 <br />0 <br />0 <br />0 <br />0.0 <br />0 <br />0.0 <br />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. IF <br />LABELED AS "VENTED", NO FIRE PROTECTION WILL BE REQUIRED. <br />VENTED SOFFIT <br />R100-F.-P-LAN-A <br />SCALE: %4"=1'-0" <br />0 <br />z M <br />Z <br />Z <br />Q <br />a <br />z <br />l/) 0 <br />V,/ uo <br />+_j u.l <br />U — <br />LU <br />O <br />Oo <br />.�(n = <br />� ~ <br />0 <br />m f` <br />U <br />L U <br />U <br />WW~6�N p <br />M M <br />C r6 M <br />O *—co p <br />= 4) <br />COCL <br />Y <br />Q Cl <br />u7 COS <br />Q O <br />A' <br />B D® <br />x c.n•n•c <br />p o wN <br />Nto N <br />A:° <br />• <br />M <br />N <br />�� <br />ig <br />w <br />p <br />i" <br />_l Q <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 />0 <br />O <br />Z N <br />O a) N <br />t-I 4-1 o <br />I> CD <br />M <br />Q U Ln <br />a •L <br />a <br />ce V a00 <br />E ..� <br />� <br />Z M <br />WJ <br />00 <br />Et' <br />0 <br />W <br />Uj z a <br />�zo0 r <br />zrav00. <br />z�� <br />{{{{uuuui- <br />L9zp� W <br />Si Oc� <br />a <br />a 3a <br />o�apZO <br />Ul <br />O <br />Ln <br />N <br />ul <br />�+ J <br />L J Q O � <br />N XU <br />z <br />Q <br />z9 W�� <br />z <br />W <br />in Z z <br />~ �i <br />�./ Z <br />~ W U <br />LU0. <br />>- <br />Ln <br />N <br />Noz':E <br />0 <br />o <br />N LL <br />uL <br />Z <br />.. 0 <br />Z <br />J <br />a <br />SCALE : AS NOTED <br />PLOT DATE : 12/7/2012 <br />TECH: MJAMES <br />VERSION NO. <br />106 <br />JOB NO: 17-5177 <br />SHEET NO. <br />4 <br />