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(7�4 <br />r- <br />C14 <br />C:) <br />C14 <br />72 <br />C=> <br />CD <br />C14 <br />C=) <br />C14 <br />�0_ <br />00 <br />Cn <br />W <br />E <br />r. <br />M <br />ATTIC VENTILATION CALCULATIONS - Al <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 <br />soffit <br />ventilation <br />vented <br />be provided <br />Ventilation <br />' ' <br />Ventilation <br />(Se' a Elev) <br />required <br />needed <br />required <br />'offit <br />11, <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 />— <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 <br />SCALE: )/4"=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 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 />9 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 SO. 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 ol-lagin 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 />e 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 />C) <br />C) <br />13 <br />V) 0 <br />4—J LU <br />U <br />LLJ <br />r� <br />V) <br />E <br />0 <br />ZD <br />q) <br />(0 c') <br />V) <br />0 C) <br />U_J <br />E <br />0 <br />CM C', <br />r- Co M <br />.0 C', <br />C) W <br />-r- LL_ OD <br />:5 - 00 <br />0 M <br />C, _V_ <br />0- C> <br />< C) <br />0 747, <br />0� <br />< Ci <br />ALI <br />E11DO <br />D,% <br />Nf <br />bc) <br />c_0 AM <br />CM <br />U <br />MW4W <br />% <br />, 0 <br />tP L <br />0 ts 10 <br />01 <br />z Nf%_ <br />UL U, 1z ?I I,,%% <br />il—I <br />L) <br />C_�) <br />1:11:1 <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 2017 Florida <br />Building Code - Residential 6th Edition. Engineer's <br />signature and seal is only for the structural engineering <br />porti on 5 ofthe drawing pages bearing Engineer's signature <br />and seat. <br />0 <br />z <br />0 <br />1­4 4-J <br />Lr) I =5 <br />z <br />> <br />p <br />f0 Ln <br />< -0 <br />cL In rr <br />ON <br />zC� <br />LL <br />U CL 00 <br />z 3i E <br />z <br />LU CD <br />W <br />_J C:) <br />1.0 <br />0, <br />Lu <br />zg <br />< <br />< <br />L, z 0 0 <br />U 0 <br />_02� <br />Ir- <br />Z, " (if <br />lz� <br />BE <br />0 U4 z <br />O—W <br />CE 8 <br />U uJ cli <br />z <br />>< 8 <br />> <br />zz <br />w <br />z <br />V) <br />_0 <br />0 <br />z <br />0 <br />U <br />< <br />-Z <br />LL. <br />LLI <br />> g <br />0 <br />i:� P zo <br />0 <br />0 <br />< �4 �2 <br />Xx: <br />0 <br />U 2 <br />r- 1,1, � <br />r,4 <br />fr <br />0 < 0 <br />z - <br />9 0 Lu Ce <br />z <br />0 ce <br />U- D 0 <br />Z <br />Lr) <br />Lil <br />Cy <br />LOU 0 z <br />< Q�� =) <br />< <br />Z8 <br />0�- <br />LU <br />r-4 <br />C) <br />< z <br />q;� <br />V) <br />ca <br />0 <br />r-J <br />06 <br />Z <br />:5 <br />LU <br />Z <br />0 <br />z <br />uJ <br />rn <br />T-q <br />a- <br />Ln <br />Am <br />SCALE AS NOTED <br />DATE 3/19/2018 <br />TECH: MJAMES <br />VERSION NO - 4n0 <br />SHEET NO. <br />5.0 <br />