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O <br />Q <br />C <br />N <br />00 <br />N <br />O <br />co <br />N <br />r\ <br />00 <br />N <br />W <br />g <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 />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 Eiev ) <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 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 />C9 <br />CM <br />_ o <br />Z CO <br />Z <br />U, z <br />C„ <br />w <br />+V — <br />OLU <br />Ln <br />t'n <br />m N <br />LLJ <br />r- U <br />a)pp <br />s M <br />_ � <br />U <br />O o N <br />I= S <br />o <br />Q <br />o 0 <br />rn <br />av <br />rn Q d <br />A 1 <br />B D® <br />NCBDC <br />N �O <br />Z IW _gi z <br />N LL <br />W a N- <br />— > E a <br />V <br />Z o <br />Ga <br />'w <br />z <br />g (gip �Q <br />co <br />IS LL <br />W a N¢M�'cU /� A <br />O v U O <br />WWW.FDSENG.COM <br />%\0111 �e�i!��i �# C'V <br />�Y <br />iA <br />E " <br />c` <, a. <br />C, <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 ( Tampa, FL 33607 <br />www.LennarTampa.com <br />oz <br />rXLu <br />0. <br />Q <br />} <br />Z p~p,, <br />Q <br />W C' <br />v�20O0 <br />~Z <br />0 :Q <br />2 aZ <br />W <br />r��z-cyy O Z <br />J <br />j N <br />A <br />m <br />Q <br />L <br />^, <br />W <br />z <br />> U <br />i <br />Z <br />z <br />F <br />J <br />1�1 <br />Q <br />OU <br />TV_0lt <br />V <br />w <br />J <br />1 'LL <br />r-L <br />µ0 z <br />~ Y <br />O 11-2 <br />O <br />U <br />LL, i <br />0. <br />1P Q J <br />t� <br />I= <br />Z W <br />¢ <br />• <br />Q ¢ £Q <br />W _ <br />Z <br />h <br />2O 0 <br />� <br />z <br />T-I <br />z a R ti <br />J <br />Q W y <br />T—I <br />W <br />¢ <br />a <br />z <br />w .F- <br />g~o <br />��Z <br />00 <br />z <br />�zo <br />m <br />O <br />z <br />`� <br />w <br />_ <br />Z <br />` W <br />rn <br />T-4 <br />a <br />cn <br />s <br />SCALE : AS NOTED <br />DATE : 10/29/2018 <br />TECH: MJAMES <br />VERSION N0. <br />4nO <br />SHEET NO. <br />5.0 <br />