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VENTED SOFFIT <br />46 SQ. FT. <br />VENTED SOFFIT <br />67 SQ. FT. , <br />ATTIC VENTILATION CALCULATIONS - A <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 />Vent Amt <br />Amt. <br />Req.) <br />(Ft.) <br />Total <br />Ventilation <br />ATTIC <br />Provided <br />SPACE <br />SQ. FT, <br />Total SO. <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 />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 5th ED. RESIDENTIAL. <br />VENTED SOFFIT LEGEND <br />IF SOFFIT IS LABELED AS "NON -VENTING" FIRE PROTECTION WILL BE INSTALLED <br />AS REQUIRED BY SECTION R302 OF THE FBC 5th EDITION (2014) RESIDENTIAL. IF <br />LABELED AS "VENTED", NO FIRE PROTECTION WILL BE REQUIRED. <br />VENTED SOFFIT <br />:.: <br />N <br />RIDGE <br />._011 <br />ZONE-1 <br />ATTIC SPACE <br />2373 SQ. FT. <br />41 :125 SLOPE <br />4'-0' ROOF VENT <br />14'-0' RIDGE VENT <br />........ <br />VENTED SOFFIT <br />58 SQ. FT. <br />15'-0' RIDGE VENT JJ <br />W <br />D_ <br />O <br />N <br />VENTED SOFFIT <br />8 SQ. FT. <br />5:12 SLOP <br />w <br />a <br />O <br />N <br />VENTED SOFFIT <br />10 SQ. FT. <br />VENTED SOFFIT <br />19 SQ. FT. <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 />R703.6 Exterior plaster. <br />Installation of these materials shall be in compliance with ASTM C <br />926 and ASTM C 1063. <br />R703.6.1 Lath. <br />All Lath and lath attachments shall be of corrosion -resistant <br />materials. Attached per ASTM C 1063. <br />R703.6.2 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 />R703.6.3 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 />R703.8 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 5th Edition <br />(2014) 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 11300 provided that at least 40% <br />but no more than 50% of the required ventilation is provided in the upper portion o <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 I LINEAR FT. <br />• OFF -RIDGE VENTS 138 SQ. IN. OF NET FREE AREA / UNIT <br />• SOFFIT VENTS 7 SQ. IN. OF NET FREE AREA I SQ. FT. <br />*If not enough vented soffit is provided due to fire protection, the contractor shall use the <br />following approved vents: <br />• LOMANCO DECK -AIR (Shingle Roof) - 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) / 86.25 = Amount of O'Hagin Vents Needed <br />IBM <br />(DV <br />00 <br />zo <br />� coo, <br />z <br />o <br />Q <br />J <br />C M W <br />Q a - <br />z <br />a�� <br />cc <br />O C M <br />Co <br />_ <br />02 <br />00 <br />_ <br />O W <br />M <br />U <br />O M M <br />W <br />E- o <br />� W <br />aN <br />— U <br />all, = (1)m <br />m _O oo <br />u n <br />a) <br />U m <br />oYv <br />Lv Y <br />t <br />0 <br />Q m <br />coo Q <br />rn <br />A <br />1 <br />NCBDG <br />B <br />De <br />A <br />rj <br />•* <br />n �— <br />� <br />� a..` � NL -j cc�� � <br />� lo, <br />�' ' LL` <br />j�IL�S �ul <br />t <br />F L <br />_Q <br />w <br />CPI <br />Z tt <br />LL W Q N <br />�' r <br />` w <br />� <br />iilSim, t <br />V m <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 Florida Building <br />Code 5th Edition (2014) Residential. 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