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s] <br />Y. <br />a <br />a <br />d- <br />rn <br />a <br />c <br />a� <br />v <br />S <br />00 <br />O <br />O <br />J <br />a <br />00 <br />2 <br />E <br />s <br />a <br />N <br />N <br />0 <br />M <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 ppe <br />SQ. IN. of <br />of vented <br />IN. of <br />f o <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 />29.00000 <br />1.000000 <br />Floor <br />2373 <br />2278 <br />325 <br />1139 <br />81 <br />570 <br />0 <br />573.0 <br />435.0 <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 in compliance 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 windowldoor 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 />Is 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 SO. IN, OF NET FREE AREA / UNIT <br />• SOFFIT VENTS - 7 SQ. IN, OF NET FREE AREA / SQ. FT. <br />' <br />w <br />Z � <br />—o <br />Z <br />E3 <br />U) <br />V) (D <br />C 2 <br />w <br />M C) <br />u — <br />Wm <br />OW <br />D_V/'t'n r- <br />� <br />C) <br />o 0 <br />m N <br />W <br />wi ~ <br />pN�C" <br />N :co <br />S M <br />T Qt <br />`f 'Jj <br />O O <br />LL <br />9? <br />01 <br />gip" <br />O Y <br />N o 0 <br />U.) 0 v <br />�i Q O <br />A® <br />B D. <br />NyC B.D C <br />: <br />Jl <br />co <br />�N92 f'i z <br />U) CN <br />Z_ <br />`U <br />,W— IC <br />W n IMI,�/ <br />'rw` w'F/DSEN Et <br />a L �* <br />QUO;: <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 />Oz <br />z¢ <br />zdf <br />f� <br />u� ¢ � X <br />�480 <br />Za <br />641 <br />� 4 w zZ <br />a 0 J <br />0 <br />N <br />L <br />gz <br />fz <br />yr 3 <br />a <br />d' <br />¢ <br />�w <br />o <br />= <br />CL <br />9H <br />000 <br />¢UA <br />o <br />� <br />O <br />f0 <br />S7ma <br />...;�_"... <br />O <br />U W O Q <br />J <br />Cr <br />�z� <br />Q <br />�oLu <br />o <br />Z <br />Z <br />rl <br />2: or <br />sa2�i <br />Q <br />J <br />r-1 <br />W <br />W <br />w w <br />PzUU <br />g� <br />N <br />� <br />Q <br />Q <br />Z <br />Q z <br />d- <br />z <br />m <br />06 <br />Z <br />V)o <br />rn <br />,-11 <br />a <br />(n <br />0 <br />SCALE : AS NOTED <br />DATE : 10/2/2018 <br />TECH: MJAMES <br />VERSION NO. <br />4x0 <br />SHEET NO. <br />5.0 <br />