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VENTED SOFFIT 40 <br />0 f-% c7r <br />VENTED SO <br />40 SQ. FT. <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 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 of vented <br />IN. of <br />of <br />Ventilation to <br />SQ. IN. of <br />SQ. IN. of <br />Ventilators <br />ventilation soffit <br />ventilation <br />vented <br />be provided <br />Ventilation <br />Ventilation <br />(See Elev) <br />required 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 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 ASWENTED", NO FIRE PROTECTION WILL BE REQUIRED. <br />VENTED SOFFIT <br />JTED SOFFIT <br />')Q. FT. <br />+ ZONE-1 <br />ATTIC SPACE <br />---35 SQ. FT. <br />VENTED SOFFIT <br />19 SQ. FT. <br />ROOF PLAN <br />SCALE: Y4"=1'-0" <br />General Notes <br />ROOF CRITERIA: <br />0 12" OVERHANG U.N.O. <br />0 PLUMB CUT FASCIA ROOF <br />0 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 />0 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 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 16 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 />• O'HAGIN WEATHERMASTER (Shingle Roof) - 72 SQ. IN. OF NET FREE AREA/ FT. <br />(Sq. Ft. Soffit Needed) x 7 = (Sq. In. Needed) / 72 = Amount of O'Hagin Vents Needed <br />• LOMANCO DECK -AIR (Shingle Roofl - 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 />9 O'HAGIN (Tile Roof) - 86.25 SQ. IN. OF NET FREE AREA I VENT <br />**Formula: (Sq. Ft. Soffit Needed) x 7 = (Sq. In. Needed) / 86.25 = Amount of O'Hagin Vents Needed <br />(D LO <br />z C� <br />—0 <br />z co <br />z <br />z <br />C—/) <br />4-J LU <br />U <br />0 UJI <br />E <br />0 <br />W cy) <br />L40 <br />.2 0 <br />0 <br />LU <br />E <br />8 <br />0) Cl) <br />C: M Cl) <br />2 M cl) <br />0 - N <br />aim 0 <br />.2 0 <br />U_ 00 <br />:5 -00 <br />C) <br />a) <br />0 <br />CL 0 <br />0 <br />-1z <br />0 <br />< <br />Lo 1* <br />0. <br />< c; <br />_8D. <br />N,C 1,D c <br />V <br />J�; <br />co <br />0 co;4 <br />V: tu <br />a) <br />LLW it <br />*%filmilo) <br />scl mo <br />d a) <br />L) <br />< 0 <br /><J �— <br />I R El <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 Sth Edition (2014) Residential. 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