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02 <br />00 <br />0 <br />O <br />S <br />00 <br />ATTIC VENTILATION CALCULATIONS - 131 <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 mt <br />A <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. 1N. 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 />0.000000 <br />0,000000 <br />Floor <br />0 <br />0 <br />0 <br />0 <br />0 <br />0 <br />0.0 <br />0.0 <br />0.0 <br />(Zone 1) <br />Upper <br />9 <br />2.000000 <br />Floor <br />1533 <br />1472 <br />210 <br />736 <br />53 <br />368 <br />411.0 <br />276.0 <br />(Zone 2) <br />135.0 <br />**NOTE** <br />GENERAL CONTRACTOR MUST ENSURE THAT PROPER VENTILATION IS PROVIDED AT EAVES/SOFFITS AS <br />REQUIRED BY FBC 6th ED. RESIDENTIAL. <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-Resisitive Barriers. <br />Water-resisitive 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 />R703.4 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 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 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 />(DAM <br />z M <br />0 <br />10 <br />z <br />Q <br />i2 <br />V) <br />(DM <br />i-� w <br />p <br />O W <br />E <br />O0 <br />d✓ <br />LU <br />0 <br />a1M M <br />c to cn <br />O CU C,U <br />_ <br />) <br />_ <br />00 <br />.5 00 <br />Nao <br />L'Y <br />Q rn <br />,ry 0� <br />A Q d <br />Al I <br />B,D,C <br />N,CTol <br />/ <br />® <br />� �5E <br />yM om` �� <br />�� <br />�eL1.IJ <br />`: <br />To the best of the Engineer's k'irdwledge, information, and <br />belief, the structural plans and specifications contained <br />within these drawings comply with the 2017 Florida <br />Building Code - Residential 6th Edition. Engineer's <br />signature and seal is only for the structural engineering <br />portions of the drawing pages bearing Engineer's signature <br />and seal. <br />0 <br />0 <br />z N <br />0 N <br />1'--i � C) <br />>J)MO <br />M <br />z <br />Q 'gyp <br />d cn•�d' <br />U') 0 N <br />Q) Ln <br />U_ <br />H <br />C L 00 <br />Q � <br />� <br />fu <br />LUJ <br />z <br />CC <br />0, <br />O <br />w � <br />z¢a <br />f <br />~ <br />ZYZ <br />Uz00 <br />FZ—LuwM <br />0 w z <br />0 J <br />J <br />0 oc <br />UFFzwO <br />T <br />O� <br />zz <br />zz <br />Ily- <br />g <br />L0 <br />O <br />N <br />-a <br />Lr) <br />z <br />� <br />o <br />Q <br />U <br />= <br />N <br />_J <br />0— <br />O <br />T21-1 <br />�oz <br />I—u F <br />GY' <br />O <br />LUU <br />M <br />Cc.0PR:,�O. <br />W <br />w C z Q <br />C7Q <br />Q <br />�} <br />V <br />Q <br />CQ og <br />p~ O C <br />O <br />Z <br />w LL o <br />a <br />LouW <br />J <br />ri <br />UJ <br />5 <br />W <br />Q <br />0¢u-8 <br />n~Ozo <br />2 U <br />Lu a I — <br />M <br />W <br />Z <br />�L <br />= Q Z <br />Uz <br />N <br />Z <br />w <br />m <br />� <br />ao <br />g <br />= <br />,--I <br />a <br />to <br />SCALE : AS NOTED <br />DATE : 3/29/2018 <br />TECH: JMUROSKI <br />VERSION NO. 5ol <br />SHEET NO. <br />5.0 <br />MIM <br />