Laserfiche WebLink
ATTIC VENTILATION CALCULATIONS - Al (TRA) <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 />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 6th ED. RESIDENTIAL. <br />ROOF PLAN - ELEV-Al <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 />R703.7 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 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 />Coastal Flashings <br />All flashing material for coastal locations (ex: within 3,000 feet of the <br />ocean) shall be corrosion resistant material (ex: zinc and/or stainless <br />steel) and shall be selected for compatibility with adjacent wood <br />preservatives per the manufacturer's recommendations. <br />Ftele�gt�kQa&fddlR���t <br />5 <br />p��e <br />L` �0�T 'I <br />a; q FF <br />_ uV <br />A ° <br />c�� t <br />c <br />6 C—* <br />a <br />• <br />ee <br />f�De <br />"?a <br />F 1 ,• <br />a..eee e••• <br />�/ <br />'�fflfe l41)(@� <br />To the best of the Engineer's knowledge, information and belief, <br />the structural plans and specifications contained within these <br />drawings comply with the 2017 <br />Florida Building Code - <br />Residential <br />6th Edition. Engineer's signature and seal is only for <br />the structural engineering portions of the drawing pages bearing <br />Engineer's signature and seal. <br />i, <br />W <br />VM <br />v° <br />` <br />.0 e� <br />� <br />Cc:NO 0 m ; <br />,NN tJ <br />N LL <br />00 <br />d <br />o <br />W <br />4t <br />2 Mr -a J Xk W <br />J riJWn <br />gLL <br />s <br />�"d� <br />iii <br />Q <br />N M W N <br />a Lu W <br />� > m LL lK Y <br />Z <br />a •o. z o <br />O X <br />a m <br />i <br />Wz- <br />IL <br />m ❑Cr <br />C N T m m ❑ <br />2E�rn _,❑a0 <br />? <br />N Q 2 O <br />Cr co Z <br />i <br />z <br />U, J <br />dV ❑��❑ <br />_. <br />«a W <br />_ coz N o <br />1� <br />z <br />drum <br />=ME <br />z v <br />o <br />� N <br />_ M <br />2 � <br />C <br />Vi y <br />Q <br />L1 <br />n <br />Q) O <br />Ln <br />to <br />w N <br />O <br />oats <br />f6 <br />U 00 <br />U 0 N <br />U)0 <br />481 <br />4 <br />0 <br />co <br />w <br />Cl) <br />w ¢ <br />o <br />z <br />a <br />LJ- <br />a E <br />za <br />wo <br />z <br />>ry <br />z® <br />p a <br />F--• <br />C::,E <br />X 0 <br />O ¢ <br />az <br />0 0 <br />U <br />0 < <br />az <br />CD¢ <br />CV <br />< <br />wW <br />L03 <br />C <br />Z <br />Y <br />U <br />m O <br />O <br />z <br />(fi <br />Wm <br />QW <br />2zU <br />fn <br />U) <br />OFW, <br />O <br />O <br />a <br />W <br />oLL <br />=3 <br />C7 r <br />O <br />� <br />� <br />ui� <br />za <br />}0 <br />a <br />OUP <br />0 CN <br />= <br />� <br />> d- <br />J <br />L <br />� <br />m <br />0 <br />�>CN <br />O <br />LPL <br />J <br />�-•. <br />O <br />70 <br />Cfl <br />r <br />rn <br />�' <br />• — <br />Z T' <br />t <br />OLO <br />0 <br />r <br />CO <br />rn n <br />0 <br />r <br />N <br />� ` Y <br />C,)T <br />v; N <br />O <br />Z <br />W <br />z <br />E O <br />U) T- <br />m <br />a <br />E <br />U � <br />¢ o <br />� <br />JOB <br />NO : <br />20-1130 <br />SCALE : <br />AS NOTED <br />SHEET NO. <br />5 <br />