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Ck:: <br />(D <br />C) <br />CID <br />Tle <br />Fn <br />W <br />CD <br />CY) <br />C� <br />C) <br />0. <br />Z W <br />E <br />0 <br />00 <br />CD <br />=D <br />ATTIC VENTILATION CALCULATIONS - B1 <br />ATnC 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 />by Upper <br />SQ. IN. Of of vented <br />IN of <br />of <br />ventilation to <br />SQ. IN. of <br />SQ. IN of <br />Ventilators <br />ventilation soffit <br />ventilation <br />vented <br />be provided <br />Ventilation <br />Ventilation <br />(See Elev) <br />required needed <br />required <br />soffit <br />by upper <br />needed <br />ventilators <br />Main <br />21.00000 <br />2,000000 <br />Floor <br />2377 <br />2282 <br />326 <br />1141 <br />81 <br />570 <br />0 <br />591.0 <br />315.0 <br />� 276.0 <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: Y4""=1'-0" <br />General Notes <br />ROOF CRITERIA: <br />0 12" OVERHANG U.N.O. <br />0 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 />e Exterior window/door openings. <br />Intersection of chimneys or other masonry constructions with <br />frame walls. <br />0 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 />U) <br />tn (D <br />U_ <br />4--J LU <br />0 LU <br />V) <br />E <br />0 <br />M (—) <br />2 Cl) <br />-2 C� <br />CO r— <br />C4 <br />LU <br />E <br />8 <br />(D M <br />cc) n, c2) <br />[2 -0 M <br />- <br />0 'a CIJ <br />C) <br />) <br />T <br />LL co <br />t -00 <br />.5 <br />0 ca <br />0� .he <br />< 0 <br />CD <br />FZ- <br />C> <br />0 !1r, <br />T CD_ <br />M < C; <br />A I <br />MD. <br />C I D c <br />IV <br />A <br />-XI <br />4k <br />Lu e. <br />U) <br />LU 0. <br />LU <br />-,ug <br />z 0 _�- <br />G U) :% <br />I[A � E m <br />z <br />LU Ul <br />I M <br />QW <br />WWITDclo <br />0 <br />Cb <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 />Residental 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 sea[. <br />AM 00% <br />LENNAkm <br />4600 W. Cypress St, Suite 2001 Tampa, FL 33607 <br />www.LennarTampa.com <br />0 Z <br />1 0 <br />z g <br />z <br />< <br />LU c: <br />8 0 <br />M z z <br />uawz <br />U�, <br />Co <br />CN <br />Lu <br />zz <br />z <br />z <br />C: <br />2: <br />a) <br />z <br />< <br />0 <br />70_ <br />< <br />z <br />U <br />> g <br />00Z <br />.10 <br />ILL. <br />< �e P <br />_J <br />0 <br />0 <br />2: 0 <br />5� - <br />0 W, <br />U0 ��, 0 < <br />r*4 <br />z z <br />�2 < <br />< <br />< UJ <br />C1 0 <br />Pdw <br />z <br />z <br />Lwu 2: 0 <br />2 �i <br />UJI <br />Ln <br />Lij <br />, <br />8w,�8 <br />q <br />Lij <br />5,1H <br />< <br />00 <br />< <br />z <br />< <br />L0 <br />z <br />< <br />9z <br />i Cal <br />0 <br />C� <br />Z <br /><1 <br />UJ <br />X: <br />V) <br />. z I <br />rn <br />__1 <br />CL <br />U" <br />SCALE AS NOTED <br />DATE 3/7/2018 <br />TECH: JIVILIROSKI <br />VERSION No' 4mO <br />SHEET NO. <br />5.0 <br />I <br />5. <br />