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OF <br />EIE <br />V-0" <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 U <br />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 />ventilation of vented <br />IN. of <br />of <br />vented <br />ventilation to <br />be provided <br />SQ. IN. of <br />SQ. IN. of <br />Ventilators <br />See Elev <br />( ) <br />required soffit <br />ventilation <br />soffit <br />by upper <br />Ventilation <br />Ventilation <br />needed <br />required <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 />1535 <br />1474 <br />211 <br />737 <br />53 <br />366 <br />1 <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 />ROOF PLAN <br />SCALE: %4t=1 t-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 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 />• O'HAGIN WEATHERMASTER (Shingle Roof) - 72 SO. IN. OF NET FREE AREA/ FT. <br />** (Sq. Ft. Soffit Needed) x 7 = (Sq. In. Needed) 172 = Amount of O'Hagin Vents Needed <br />• LOMANCO DECK -AIR (Shingle Root) - 9 SQ. IN. OF NET FREE AREA / FT. <br />"Formula: (Sq. Ft. Soffit Needed) x 7 = (Sq. In. Needed) / 9 = Linear Ft. of Deck -Air Needed) <br />• O'HAGIN (Tile Roof) - 86.25 SQ. IN. OF NET FREE AREA / VENT <br />**Formula: (Sq. Ft. Soffit Needed) x 7 = (Sq. In. Needed) 186.25 = Amount of aHagin Vents Needed <br />_zo <br />z�z <br />Q <br />a <br />U) Z <br />C1 <br />( <br />{--+ w <br />C� o <br />* V — <br />.e <br />O <br />U <br />rNi <br />■ <br />C',w c m � <br />O O N <br />U. <br />3310 <br />Iti <br />Q rn <br />�i Q o <br />A <br />I <br />Nc b <br />B <br />D <br />-. � � �lJ � 2YJ N <br />'�Q <br />• <br />�. O°~ <br />W $ .•' <br />To the best of the Engineer's knowledge, 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 />1f <br />0 <br />CD <br />Z 1714 <br />O NN <br />> (/) M O <br />z <br />M <br />Qf.� V-MpLn <br />to :2 <br />0 <br />aau� <br />^ <br />H <br />z <br />U a <br />< 000 <br />a <br />z Ev <br />Z <br />W <br />J� <br />J <br />z <br />w <br />za <br />SFm <br />gz8o <br />W <br />�gZZ <br />O <br />� <br />g8 <br />Z <br />GC <br />U) <br />Z <br />a) <br />L0 <br />U)3 <br />J <br />a <br />U <br />_ <br />LL <br />9W <br />Zo <br />� <br />O <br />u�y�,�LLJ <br />8 V <br />V 0 <br />c <br />Lazo <br />Q <br />Z <br />^ <br />gw <br />W <br />.-t <br />t4 <br />Q <br />W <br />Zg <br />a <br />N <br />°° <br />O <br />oo <br />g <br />= <br />�o <br />a z <br />rn <br />7- 4 <br />a <br />U0 <br />f <br />SCALE : AS NOTED <br />DATE : 3/19/2018 <br />TECH: MJAM ES <br />VERSION NO. 5mO <br />SHEET NO. <br />5.0 <br />