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• <br />:: <br />:: :: <br />RIDGE <br />:.....::. I rl <br />o, <br />O <br />r <br />` <br />N <br />I <br />In <br />ai <br />RIDGE <br />" <br />15'-0' RIDGE VENT <br />I <br />\Q L <br />w <br />a <br />.Z. <br />0 <br />I <br />w <br />$ <br />:125 SLOPE > <br />14'-0' RIDGE VENT <br />olI <br />I GE <br />r <br />a <br />I <br />o <br />:• <br />� <br />••.......... <br />LO <br />$ <br />5:12 SLOP <br />•r <br />3 <br />y <br />U <br />a <br />on <br />CDN <br />0 <br />ROOF <br />PLAN <br />W <br />Y4"=1'-0" <br />SCALE: <br />ATTIC VENTILATION CALCULATIONS - Al <br />General Notes <br />ATTIC VENTILATION REQUIRED UPPER VENTILATION PROVIDED <br />ROOF CRITERIA: <br />1/150 Rule Ridge <br />• 12" OVERHANG U.N.O. <br />(No Upper Ventilators 1l300 Rule (Must Provide Upper Ventilators) Vent Amt Amt. <br />• PITCH PER ELEVATION <br />Off -Ridge <br />• PLUMB CUT FASCIA ROOF <br />Req.) (Ft.) <br />-. -.- Total <br />Ventilation <br />*"G.C. VERIFY ROOF PITCH** <br />ATTIC Provided <br />ROOF PITCH VARIES PER SUBDIVISIONS IT IS THE <br />SPACE SQ. FT. SQ. IN. of b Upper <br />CONTRACTORS RESPONSIBILITY TO VERIFY <br />SQ. IN. of SQ. FT. Total SQ. Y Ppe <br />of vented IN. of of ventilation to SQ. IN. of SQ. IN. of <br />ROOF SLOPE REQUIREMENTS WITH TRUSS <br />Ventilators <br />ventilation vented be provided (See Elev) <br />MANUFACTURER. <br />required soffit ventilation soffit by upper Ventilation Ventilation <br />needed required needed ventilators <br />Main 29.00000 1.000000 <br />Floor 2373 2278 325 1139 81 570 0 _. 573.0 <br />(Zone 1) T 435.0 138.0 <br />**NOTE** <br />GENERAL CONTRACTOR MUST ENSURE THAT PROPER VENTILATION IS PROVIDED AT EAVES/SOFFITS AS <br />Exterior Covering <br />REQUIRED BY FBC 6th ED. RESIDENTIAL. <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 />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 />CL <br />• Intersection of chimneys or other masonry <br />constructions with <br />frame walls. <br />• Under and at the ends of mason <br />rLO y <br />, 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 />w <br />(2017) Residential R806. <br />The Minimum net free ventilating area shall be 1l150 of the area of the vented <br />Q O <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.Uppervantilators 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 save or cornice vents. <br />**CALCULATIONS BASED ON THE FOLLOWING VALUES, SEE ROOF PLAN** <br />............. <br />(Values to be verified with Manufacturer Specifications) <br />CDVO <br />• RIDGE VENTS - 15 S0. IN. OF NET FREE AREA / LINEAR FT. <br />• OFF -RIDGE VENTS - 138 S0. IN. OF NET FREE AREA /UNIT <br />• SOFFIT VENTS - 7 S0. IN. OF NET FREE AREA / SQ. FT. <br />General Notes <br />Z <br />c <br /><c <br />a <br />C <br />tn,J).9 <br />' <br />W <br />� <br />.I..J w <br />*V — <br />0 w <br />� <br />M <br />U <br />w <br />S <br />m N <br />�M <br />