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VENTED SOF <br />46 SQ. FT. <br />I Ir-► 1-111`1lr—I% r+#-%rr1-r r-n t+A,% r—r <br />VCIV I CV JlJrrl I v/ ow. r I. <br />ATTIC VENTILATION CALCULATIONS - B1 <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 />— <br />Total <br />— <br />---- <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 />ply <br />SQ. IN. of <br />ventilation of vented <br />IN. of <br />f o <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 />q <br />ventilation <br />Soffit <br />yupperVentilation <br />Ventilation <br />needed <br />required <br />needed <br />ventilators <br />Main <br />21.00000 2.000000 <br />Floor 2377 <br />2282 326 1141 81 570 0 <br />591.0 <br />(Zone 1) <br />315.0 276.0 <br />" NOTE•" <br />GENERAL CONTRACTOR MUST ENSURE THAT PROPER VENTILATION IS PROVIDED AT EAVES/SOFFITS AS <br />REQUIRED BY FBC 5th ED. RESIDENTIAL. <br />_ <br />VENTED SOFFIT LEGEND <br />_ _ _ <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 />ITED SOFFIT <br />,Q. FT. <br />ROOF PLAN <br />SCALE: 14'=V-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 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 verged 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 / SO. FT. <br />• O'HAGIN WEATHERMASTER (Shingle Roof) • 72 SQ. IN. OF NET FREE AREA/ FT. <br />" (Sq. R. Soffit Needed) x 7 = (Sq. In, Needed) / 72 = Amount of O'Hagin Vents Needed <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 />Z <br />Z <br />Q <br />J <br />CL <br />Z <br />() 0 <br />W tJ7 <br />. --J w <br />� o <br />V — <br />0 w <br />� <br />m <br />l- <br />o <br />l/) ~ <br />U <br />M 0 <br />� <br />w E <br />' f— <br />—8 <br />rn" <br />c m an <br />l`C 0 " <br />000 <br />_ <br />yyyy <br />C Y <br />LL ono <br />O Y <br />Q rn <br />Lo p •V <br />o <br />AI <br />w.c•e n.c <br />B <br />D. <br />F_ <br />`� a OF <br />nono <br />Wes= v <br />' a4t <br />2� <br />eso <br />O <br />U O <br />❑❑ <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. Engineer's signature <br />and seal Is only for the structural engineering portions of <br />the drawing pages bearing Engineer's signature and seal. <br />O <br />O <br />Z cV <br />O a) N <br />i-+ o <br />r>-+HMO <br />M <br />a U-) 'fU Ln <br />N LL- <br />a .-. <br />clC U Q <br />z <br />00 <br />Q E <br />z <br />Z <br />W <br />d" <br />�z <br />zd <br />F <br />u, & <br />Uz8o <br />$ z� <br />V J W <br />L <br />p <br />iz <br />il> <br />S <br />a <br />n3 <br />0 <br />¢+ <br />a w <br />U_ <br />dS <br />LW <br />0 <br />O <br />O°aj5a <br />� Y P <br />ug�� <br />N <br />W <br />Z�� <br />W <br />Ln <br />W <br />4� <br />J <br />rl <br />LLJ <br />Q <br />Z <br />t5 <br />a <br />W g <br />dM- <br />o <br />� <br />g <br />N <br />SCALE : AS NOTED <br />DATE : 2/24/2014 <br />TECH: MJAMES <br />VERSION N0. 10 <br />SHEET NO. <br />5.0 <br />