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VENTED SOFFIT 48 SQ. FT. <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 />e SOFFIT VENTS 7 SQ. IN. OF NET FREE AREA I SQ. FT. <br />%, . ............................ .. ................... .. ............ ...............................................I ............ <br />... I ............................. % I ..................... .......... ..............................................I <br />....... ................................. .......... I .. .. . .... <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) f 9 = (Linear Ft. of Deck -Air Needed) <br />* O'HAGIN (Tile Roof) - 86.25 SQ. IN. OF NET FREE AREA / VENT <br />:A <br />"Formula: (Sq. Ft. Soffit Needed) x 7 (Sq. In. Needed) 86.25 Amount of O'Hagin Vents Needed <br />ZONE-3 <br />... <br />ATTIC <br />SPACE <br />3366 <br />SQ. FT. <br />lyj <br />LL_ <br />LL_ <br />C3 <br />U) <br />C0 <br />ILL. <br />LE <br />LL_ <br />LL_ <br />C0 <br />C/:) <br />M... <br />r11 <br />U-1 <br />U_j <br />F_ <br />ATTIC VENTILATION CALCULATIONS B <br />ATrIC VENTILATION REQUIRED UPPER VENTILATION PROVIDED <br />1/150 Rule 1/300 Rule Ridge Vent Amt <br />(No Upper Ventilators (Must Provide Upper Ventilators) (Ft.) Off-RidgeAmt. <br />Req.) <br />Total Ventilation <br />ATTIC Provided by <br />... <br />Upper <br />SPACE SQ. FT. Total SQ. SQ. FT. SQ. IN. of Ventilators <br />SQ. IN. of of vented IN. of of ventilation to SQ. IN. of SQ. IN. of (See Elev) <br />ventilation vented be provided <br />soffit ventilation Ventilation Ventilation <br />required soffit by upper <br />needed required needed ventilators <br />Main 14.0 5.0 <br />Floor 3366 3231 462 1616 115 808 900.0 <br />... <br />(Zone 3) 210.0 690.0 <br />d <br />U:) <br />0.0 0.0 <br />C-0 <br />0 0 0 0 0 0 0.0 <br />... <br />.... <br />0.0 0.0 <br />F... <br />... <br />LL_ <br />.... <br />.... <br />0.0 0.0 <br />C) <br />0 0 0 0 0 0 0.0 <br />C/3 <br />.7. <br />0.0 0.0 <br />M <br />... <br />Lj_j <br />.... <br />... <br />.... <br />... <br />*'NOTE— <br />GENERAL CONTRACTOR MUST ENSURE THAT PROPER VENTILATION IS PROVIDED AT EAVES/SOFFITS AS <br />... <br />REQUIRED BY FBC 5th ED. RESIDENTIAL. <br />VENTED SOFFIT LEGEND <br />... <br />IF IFFIT IS LABELED AS "NON -VENTING" FIRE PROTECTION WILL BE INSTALLED <br />X .%V. ........ ..... <br />AS REQUIRED BY SECTION R302 OF THE FBC 5th EDITION (2014) RESIDENTIAL. IF <br />... <br />LABELED ASWENTED", NO FIRE PROTECTION WILL BE REQUIRED. <br />................... t7-7 ........ <br />... <br />VENTED SOFFIT <br />................. <br />............. <br />................ <br />VENTED SOFFIT 36 SQ. FT, <br />............... <br />I .......... I ........................................ <br />...................................................I <br />VENTED SOFFIT 20 SQ. FT, <br />ROOF PLAN-B_ <br />SCALE: Y4"=V-0" <br />0 LOG <br />z CY) <br />CD <br />0 <br />z <br />Qz- <br />U) z La <br />U4711 0 <br />Q) C-/) <br />4—J LU <br />U <br />0 LU I, E <br />0 <br />L/711 (n <br />U) cl) <br />U1711 00 <br />ru C14 <br />(D Ce) <br />U-1 0) co <br />C: ca co <br />-0 <br />E 2 r M <br />0 0 0 C%j <br />y C) <br />a) -C CC) <br />a) -� co <br />C) U) 0 ca <br />a) W �� <br />r1f .0 a C:) <br />�d U) 0 -'T <br />< 00) 1 lot) -� _0 <br />N-C�B D-C <br />A I W <br />ave <br />V1111i ruft'. <br />Cj <br />.40 <br />U) C5 <br />04 2E <br />z W _j <br />IX <br />44- <br />E; <br />z 0 <br />LLLU <br />It I I, <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 5 th 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 />C:) <br />C:) <br />z C%4 <br />0 (1) r-, <br />�—j 4-J C:) <br />U0 1 5 ko <br />> C:) <br />M C� <br />4_j <br />U-) 1170 Lr) <br />(1) .2 V_ <br />0 <br />< U_ <br />Ln <br />U CL 00 <br />< <br />z z E <br />z <br />LULU C=) <br />_j C:) <br />Li LL 0 <br />z <br />I.- � a- <br />LU of <br />U L,) 0 <br />0z >_ z < 0 <br />z 0 a- of <br />Z < U 2: < <br />Z z z <br />-Z <br />LU LL,1 <br />04c) Wo <br />C:) U 2 �D_ LLJ 04 <br />CL 0 z @ <br />Ly z <br />L, <br />C:) <br />Lr) <br />r_j <br />fN <br />Lr) < <br />u, 0 <br />LU < <br />0� Ln Ne Ce <br />'acc zo Coe <br />U LLJ ��! 2 <br />0 C) E8z <br />Z u2j: C6 ti <br />CY-- z <br />LU LU 0 21 8 0 <br />(D (2:9� - < U <br />Uj LL' <br />> z LL 8 US <br />> 0 cf, <br />Z.:t <br />Lu LLJ 0 LL <br />0� x 0 <br />< 0 <br />C) ce <br />_j 0 (Y u- <br />V) <br />c) Lo z 0< <br />T-i LU <br />CL <br />0 0- <br />I_- c) ILL LL < u_ <br />z 0 <br />UJI 0 <br />> 0 <br />z <br />116-4 _j <br />SCALE AS NOTED <br />PLOT DATE: 12/7/2012 <br />TECH: MJAMES, <br />VERSION NO. <br />100 <br />JOB NO: 17-1427 <br />SHEET NO. <br />4 <br />OIL <br />I01 <br />k. , <br />1� 1; <br />OIL <br />I01 <br />k. , <br />1� 1; <br />