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rn <br />LO <br />0 <br />N <br />n <br />L0 <br />co <br />co <br />to <br />I <br />m <br />J <br />R,, <br />Q <br />00 <br />.1 <br />0 <br />a <br />V) <br />w <br />ATTIC VENTILATION CALCULATIONS - B <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 />A <br />Vent mt <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 />by Upper <br />SQ. IN. of <br />of vented <br />IN. of <br />of <br />ventilation toSQ. <br />IN. of <br />of <br />Ventilators <br />ventilation <br />soffit <br />ventilation <br />vented <br />be provided <br />Ventilation <br />en <br />en ila <br />Ventilation <br />(See Elev ) <br />required <br />needed <br />required <br />soffit <br />by upper <br />needed <br />ventilators <br />Main <br />23.0 <br />1.0 <br />Floor <br />2719 <br />2610 <br />373 <br />1305 <br />93 <br />653 <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 - ELEV-B <br />SCALE: %4"=1 r-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 />R703.6 Exterior plaster. <br />Installation of these materials shall be in compliance with ASTM C <br />926 and ASTM C 1063. <br />R703.6.1 Lath. <br />All Lath and lath attachments shall be of corrosion -resistant <br />materials. Attached per ASTM C 1063. <br />R703.6.2 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 />R703.6.3 Water-Resisitive Barriers. <br />Water- resis itive 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 (paperbacked <br />stucco lath) over an approved synthetic house wrap. <br />R703.8 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 contructions 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 o <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 />• OFF -RIDGE VENTS 138 SQ. IN, OF NET FREE AREA / UNIT <br />• SOFFIT VENTS 7 SQ. IN. OF NET FREE AREA / SQ, FT. <br />*If not enough vented soffit is provided due to fire protection, the contractor shall use <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) / 9 = Linear Ft. of Deck -Air Needed) <br />0 V <br />zM <br />_ <br />z <br />P <br />a <br />U? z <br />V1 Cr1 <br />w <br />�U — <br />O W <br />N <br />m <br />o <br />�Ln f- <br />U <br />o <br />m N <br />W <br />N ch <br />CU Cl) <br />_ <br />O o `4 <br />_ <br />U <br />t if M <br />f" O <br />�C rn <br />O- p <br />u, o_ 7r <br />rn Q d <br />A 1 <br />B D® <br />D N C B.C <br />N__..e. <br />N � <br />ew m� <br />v O <br />� " <br />Z W M N 6 z w <br />LU <br />LL o <br />r o� w w <br />LU ^ a w <br />_ <br />� W U -E a <br />< o <br />C4 o� w <br />..., ..Q+N 4r.M OL <br />&;C-0- •.511 <br />W.F <br />' %o \ <br />-• a <br />q^. '�a 1 �r•.M '• <br />of e•n .v �. .. <br />ESSpp <br />pe§�� <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. Engineers signature and seal is only for <br />the structural engineering portions of the drawing pages bearing <br />Engineer's signature and seal. <br />L AR <br />4600 W. Cypress St, Suite 2001 Tampa, FL 33607 <br />www.LennarTampa.com <br />0o <br />�o <br />z9 <br />f <br />¢z <br />aF <br />IL <br />w Q K of <br />UZOO <br />zuJ¢ <br />M w Z <br />a <br />O a� <br />U W N <br />m <br />'< <br />z <br />Zo <br />Q V <br />`rZ <br />z <br />V <br />0 <br />fu <br />a`� <br />�O <br />O <br />z <br />o <br />C <br />g <br />in <br />N <br />M.moof�-yO <br />g . <br />T111 <br />V <br />PER2 <br />o2: - <br />zaz;� <br />< g <br />Q <br />Q <br />2�Qaa <br />Z <br />Z <br />fV <br />CV� <br />Lu �r o <br />LV <br />J <br />L// <br />rl <br />UJI <br />Q <br />� <br />¢LU LL <br />O <br />cn u <br />8 <br />Z <br />z <br />�Qz <br />m <br />z <br />� <br />o� <br />j� <br />O <br />00 <br />= <br />a <br />rn <br />*-1 <br />a <br />cn <br />s <br />SCALE : AS NOTED <br />DATE : 10/2/2018 <br />TECH: MJAM ES <br />VERSION NO. 42 <br />SHEET NO. <br />5.1 <br />