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0 <br />_C1 <br />E! <br />oo <br />4- <br />c14 <br />LC) <br />M <br />C14 <br />A <br />Ln <br />C'4 <br />LC) <br />cD <br />o <br />oo <br />cc) <br />C-) <br />t� <br />C' <br />E <br />E <br />0 <br />2 <br />a_ <br />U-) <br />ATTIC VENTILATION CALCULATIONS - B <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 />SO FT <br />' * <br />80, IN. of <br />by Upper <br />SO. 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 Lipper <br />needed <br />ventilators <br />Main <br />23.0 <br />1.0 <br />Floor <br />2719 <br />2610 <br />373 <br />1305 <br />93 <br />653 <br />4830 <br />345.0 <br />— <br />138�O <br />(Zone 1) <br />­NOTL** <br />GENERAL CONTRACTOR MUST ENSURE THAT PROPER VENTILATION IS PROVIDED AT EAVES/SOFFITS AS <br />REQUIRED BY FBC Sth ED. RESIDENTIAL. <br />I I <br />ROOF PLAN - ELEV-B <br />SCALE: Y4"— 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 />R703.7 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-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 />R703.4 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 frarning <br />components. Flashing shall be installed at the following locations. <br />• Exterior window/door openings. <br />• Intersection of chimneys or other masonry construction 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 />I Attic Ventilation I <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 ManUfaCtLirer Specifications) <br />• OFF -RIDGE VENTS 138 SQ. IN OF NET FREE AREA / UNIT <br />• SOFFIT VENTS 7 SO IN. OF NET FREE AREA / SQ. FT. <br />*ff not enough vented soffit is provided due to fire protection, the contractor shall use I <br />following approved vent& <br />- LOMANCO DECK -AIR (Shingle Root) - 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 />4--J <br />M <br />0 <br />0 <br />L.0 <br />E <br />. . . . . . . . . . . <br />Q) C"� <br />0 <br />C) <br />I-_ U_ W <br />CL <br />M < C) <br />Al J <br />BID. <br />\,IV/ <br />U) E; <br />LU <br />LU <br />LU <br />z , <br />Jg- <br />z <br />LL LU , -�c <br />.0 <br />'El <br />�:�Ww F G <br />4L <br />To the best of the Enginoer's knowledge, information and beliet <br />the structural plans and specifications contained within these <br />drawings comply with the 2017 Florida Building Code - <br />Residential 6th Edition. Engineers signature and seal is only for <br />the structural engineering portions of the drawing pages thparinq <br />Engineers signature and seal <br />LE N NAIN <br />4600 W. Cypress St, Suite 200 1 Tampa, FL 3360 7 <br />www.LennarTampa.com <br />CZ <br />C) <br />< <br />cl: <br />z <br />0 <br />0 <br />0 <br />U <br />< <br />z <br />0 <br />-0 <br />U_ <br />Ln 3: <br />0 <br />z <br />0 <br />> <br />0 <br />U <br />cr_ <br />0 <br />J <br />W <br />P <br />< <br />z <br />00 <br />0 <br />go. <br />LU <br />L0 <br />di <br />< <br />8 0 <br />T__1 <br />I " <br />LU <br />2: <br />< <br />�' -- U <br />U) F- , (-) <br />< < <br />F- <br />00 <br />"0 <br />r-4 <br />< <br />Z <br />tTJ <br />0 <br />7 <br />Z) V) S <br />9 z <br />0 <br />C:) <br />LU <br />0 <br />Q <br />0_ <br />Lf) <br />S <br />SCALE AS NOTED <br />DATE 10/2/2018 <br />TECH: MIAMES <br />VERSION No. 4m2 <br />SHEET NO. <br />5.1 <br />