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m <br />v <br />N <br />rn <br />S <br />N <br />ifJ <br />L0 <br />73 <br />00 <br />i <br />it <br />m <br />v <br />N <br />aT <br />0 <br />J <br />00 <br />00 <br />ATTIC VENTILATION CALCULATIONS - Al <br />ATTIC VENTILATION REQUIRED <br />UPPER VENTILATION PROVIDED <br />1/150 Rule <br />1/300 Rule <br />Ridge <br />Off -Ridge <br />(No Upper Ventilators <br />(Must Provide Upper Ventilators) <br />Vent Amt <br />Amt. <br />Req.) <br />(Ft.) <br />Total <br />Ventilation <br />ATTIC <br />Provided <br />SPACE <br />SQ. FT. <br />Total SQ. <br />SQ. FT. <br />SQ. IN. of <br />b Upper <br />y pp <br />SQ. IN. of <br />of vented <br />IN. of <br />of <br />ventilation to <br />SQ. IN. of <br />SQ. IN, of <br />Ventilators <br />ventilation <br />soffit <br />ventilation <br />vented <br />be provided <br />Ventilation <br />Ventilation <br />(See Elev) <br />required <br />needed <br />required <br />soffit <br />by upper <br />needed <br />ventilators <br />Main <br />23.00000 <br />1.000000 <br />Floor <br />2008 <br />1928 <br />275 <br />964 <br />69 <br />482 <br />0 <br />483.0 <br />345.0 <br />138.0 <br />(Zone 1) <br />**NOTE** <br />GENERAL CONTRACTOR MUST ENSURE THAT PROPER VENTILATION IS PROVIDED AT EAVES/SOFFITS AS <br />REQUIRED BY FBC 6th ED. RESIDENTIAL. <br />ROOF PLAN <br />SCALE: %4"=1'-0" <br />General Notes <br />ROOF CRITERIA: <br />• 12" OVERHANG U.N.O. <br />• PLUMB CUT FASCIA ROOF <br />• PITCH PER ELEVATION <br />**G.C. VERIFY ROOF PITCH** <br />ROOF PITCH VARIES PER SUBDIVISIONS IT IS THE <br />CONTRACTORS RESPONSIBILITY TO VERIFY <br />ROOF SLOPE REQUIREMENTS WITH TRUSS <br />MANUFACTURER. <br />**ELECTRICAL SPECIFICATION NOTES** <br />ELECTRICAL CONTRACTOR MUST VERIFY WITH <br />THE SPECIFICATIONS FOR THE TYPE OF FIXTURE <br />TO BE USED. LIGHT FIXTURES SHOWN ARE FOR <br />LOCATION PURPOSES. <br />Exterior Covering <br />R703.7 Exterior plaster. <br />Installation of these materials shall be incompliance with ASTM C <br />926 and ASTM C 1063. <br />R703.7.1 Lath. <br />All Lath and lath attachments shall be of corrosion -resistant <br />materials. Attached per ASTM C 1063. <br />R703.7.2 Plaster. <br />Plastering w/ portland cement plaster shall be not less than three <br />coats when applied over metal lath or wire lath and shall be not <br />less than two coats when applied over masonry, concrete. <br />R703.7.3 Water -Resistive Barriers. <br />Water -resistive barriers shall be installed where cement plaster <br />(stucco) is to be applied over wood -based sheathing, shall include <br />a water -resistive vapor -permeable barrier. The individual layers <br />shall be installed independently such that each layer provides a <br />separate continuous plane and any flashing intended to drain to <br />the water -resistive barrier is directed between the layers. The <br />barriers shall consist of one of the following. <br />1. Two layers of an approved water resistant barrier material in <br />accordance with R703.2. <br />2. One layer of an approved water -resistive barrier (paper <br />backed stucco lath) over an approved synthetic house wrap. <br />R703.4 Flashing. <br />Approved corrosion -resistant flashing shall be applied <br />shingle -fashion in a manner to prevent entry of water into the wall <br />cavity or penetration of water to the building structural framing <br />components. Flashing shall be installed at the following locations. <br />• Exterior window/door openings. <br />• Intersection of chimneys or other masonry constructions with <br />frame walls. <br />• Under and at the ends of masonry, wood or metal copings <br />and sills. <br />• Continuously above all projecting wood trim. <br />• Where exterior porches, decks or stairs attach to a wall or <br />floor assembly of wood -frame construction. <br />• At wall and roof intersections <br />• At Built-in gutters. <br />Attic Ventilation <br />Attic Ventilation to be in compliance with the Florida Building Code 6th Edition <br />(2017) 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 />M <br />—o <br />Q <br />w <br />�V — <br />0 w <br />E <br />v <br />t// co <br />CD <br />m N <br />W <br />E ' <br />pCw�ch <br />M <br />0 <br />-� <br />N m <br />Ooo <br />9 y <br />�.✓ <br />L LL 00 <br />O Y <br /><Crn <br />I` <br />�Qc <br />rn Q o <br />A® <br />B D• <br />N C H D C <br />N �O <br />C7 g M� <br />Z LU N ooz w Z <br />u � w <br />ii � o Ltl <br />W a �V. a w <br />W �E a <br />v�ia'a <br />Z0 EslLL <br />_.,,/ <br /><3 oo: <br />W <br />�frE <br />lE�41�l1x <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 2017 Florida Building Code - <br />Residential 6th 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 />4600 W. Cypress St, Suite 200 1 Tampa, FL 33607 <br />www.LennarTampa.com <br />Z <br />W� <br />Za <br />f a <br />W¢iYof <br />MOO <br />Z W a�a <br />� W Z <br />2: J <br />aw0. <br />0 �� <br />W N <br />W <br />ti <br />L <br />LU <br />ul <br />Z Z <br />1 <br />/� <br />U <br />Z Z <br />a <br />G <br />CL <br />J Uzi <br />O <br />J/ <br />TI <br />0_0000 <br />LL <br />~ <br />¢-g <br />v <br />a <br />' ^ <br />i O <br />0 <br />ra0� <br />JLr)J <br />T <br />ZW<� <br />ti <br />Q <br />4a�E <br />O 0 u- O <br />Z <br />Z <br />+--I <br />LL O f W <br />LU <br />J <br />V-I <br />W <br />2: <br />W <br />2: <br />a <br />1-Zo U <br />g¢I- <br />0 <br />1�o <br />00 <br />Q <br />z <br />Z <br />a< <br />CY <br />m <br />Cb <br />Z <br />g <br />LL1 <br />= <br />Z <br />aLu <br />� <br />,--i <br />a <br />cn <br />o <br />SCALE : AS NOTED <br />DATE : 7/30/2018 <br />TECH: M)AM ES <br />VERSION NO" 10 <br />O <br />SHEET NO. <br />5,0 <br />