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a`> <br />it <br />m <br />v <br />v <br />x <br />v- <br />u•) <br />0 <br />cV <br />t— <br />r <br />M <br />I <br />00 <br />i <br />m <br />n <br />CD <br />v <br />LO <br />O <br />0 <br />J <br />00 <br />c0 <br />02 <br />tR <br />Q <br />W <br />ATTIC VENTILATION CALCULATIONS <br />ATTIC VENTILATION REQUIRED <br />UPPER VENTILATION PROVIDED <br />11150 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 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 />19.000000 <br />2.000000 <br />Floor <br />2276 <br />2185 <br />312 <br />1092 <br />78 <br />546 <br />561.0 <br />285.0 <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"=V-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 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 />zM <br />0 <br />Z <br />z <br />U) Z_ <br />Cn CD <br />C <br />w <br />�U — <br />Ow <br />o <br />U <br />o0 <br />m N <br />W <br />^ 8 <br />N Cl) <br />O) co <br />m ,O M <br />9? = <br />O_Oo <br />a, <br />� 00 <br />o m r� <br />L <br />¢ <br />�v <br />rn Q o <br />B D• <br />N�� <br />V O a <br />ZLu�M Z z <br />. c <br />LL <br />W Q (D a <br />LU V <br />Z 0 <br />H o � <br />CD <br />�yE� <br />W p N o "J�'� <br />�,. J .• • •NG eo <br />6 <br />CO <br />N,�'!•: <br />rt , ri z <br />era �• <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 />LENNAR <br />4600 W. Cypress St, Suite 200 1 Tampa, FL 33607 <br />www, Lennaffampa.com <br />o <br />Z <br />0 <br />�o <br />z Q <br />of <br />�F <br />zaa <br />w¢�CC <br />Uz00 <br />O 0 a <br />�gLZ <br />J <br />W 0 <br />w w N <br />8 Lu <br />O Lu <br />L <br />Z Z <br />ao <br />f <br />z <br />N3 <br />^< <br />0 <br />`. <br />Qf <br />l� <br />�Y00d <br />F <br />O <br />J <br />r� <br />O <br />z 0 U <br />i2ma <br />1 <br />O <br />oao< <br />N <br />r•i <br />z . z J <br />Q <br />°�Ce� <br />Z <br />I� <br />o - <br />Z <br />r--I <br />Lu <br />Lu a & <br />= <br />J <br />di <br />LLJ <br />Q <br />¢ z <br />g~o <br />CO <br />57 <br />Q <br />z <br />�<Z <br />Z <br />aoo <br />m <br />co <br />Z <br />g <br />W <br />= <br />az <br />Z <br />rn <br />,-4 <br />a <br />o <br />SCALE : AS NOTED <br />DATE : 3/16/2018 <br />TECH: MJAM ES <br />VERSION N0. 4n0 <br />SHEET NO. <br />5.0 <br />