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�I��IIfI:IIt•411YLLN'orl,lLlLdIWY�II�IlI�iY�1011�1YW� fi�u�l ®11W�Iw�rw��� �—� Lllywn�iss?s.��i�°��•wa•—�� <br />Di <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 />SQIN. of <br />SQ. iN. of <br />Ventilators <br />ventilation <br />soffit <br />ventilation <br />vented <br />be provided <br />. <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 />4,000000 <br />2.000000 <br />Floor <br />1080 <br />1037 <br />148 <br />518 <br />37 <br />259 <br />336.0 <br />60.0 <br />276.0 <br />(Zone 1) <br />Main <br />0.0 <br />0.000000 <br />Floor <br />16 <br />15 <br />2 <br />8 <br />1 <br />4 <br />0.0 <br />0.0 <br />(Zone 2) <br />0.0 <br />Upper <br />16.000000 <br />0.000000 <br />Floor <br />1166 <br />1119 <br />160 <br />560 <br />40 <br />280 <br />240.0 <br />(Zone 3) <br />240.0 <br />0.0 <br />"*NOTE" <br />GENERAL CONTRACTOR MUST ENSURE THAT PROPER VENTILATION IS PROVIDED AT EAVES/SOFFITS AS <br />REQUIRED BY FBC 6th ED. RESIDENTIAL. <br />ROOF PLAN <br />SCALE: %4"=l'-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 SO. 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 />a <br />CD <br />0 <br />FLJ`l= <br />� <br />z o <br />z <br />z <br />� a <br />(nV1 z a <br />n' o <br />U U <br />Vl _ <br />�i Y <br />V E <br />o <br />u <br />U ° <br />m <br />�— 2 emi <br />a j'.... <br />= 0 <br />U ) N <br />Y <br />° <br />A <br />o� <br />Z Mrd <br />N N <br />w z <br />is <br />N Q <br />k i <br />GJ 8 <br />To the best of the Engineer's knowledge, information and belief, <br />the structural plans and specifications contained within <br />these <br />drawings comply with the 2017 Florida Building Code <br />- <br />Residential 6th Edition. Engineers signature and seal <br />is only for <br />the structural engineering portions of the drawing pages bearing <br />Engineer's signature and seal. <br />C::,w <br />co <br />M <br />z <br />CJ <br />z <br />o <br />� <br />U_ <br />zo <br />0 0 <br />>m <br />Q N <br />Q O <br />E V <br />Z <br />Z <br />�K <br />O E <br />ap <br />aZ <br />N <br />�o <br />¢ <br />¢� <br />L <br />Cn C <br />Z <br />Y <br />m O <br />O, <br />r) <br />iz <br />F <br />o LL <br />z z <br />go <br />a <br />m <br />W <br />W <br />C=)O <br />z <br />w <br />�F <br />>� <br />co <br />V <br />0- <br />z �¢ <br />OU <br />C O <br />O <br />in <br />^L1 <br />W <br />> <br />N <br />■� <br />T <br />0 <br />�1 <br />0 <br />C <br />N <br />Co <br />%%-.00 <br />W N <br />T <br />T <br />O <br />V <br />oO <br />N 0)■ <br />00 <br />'d O <br />N rn N <br />r <br />N= <br />LO <br />r r N <br />o <br />CU <br />:3 O N <br />Z <br />Z <br />E Q <br />E <br />N <br />C <br />o -0 m <br />m <br />JOB <br />NO: 19-5899 <br />SCALE : AS NOTED <br />SHEET NO. <br />5.0 <br />