Laserfiche WebLink
s <br />a <br />Q <br />E <br />r7 <br />co <br />0 <br />CV <br />M <br />UJ <br />W <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 />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 />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 <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 -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 />�r <br />z M <br />—o <br />Z N <br />z� <br />r <br />V) C9 <br />w <br />(Dm <br />4--J <br />0 <br />U — <br />O w <br />f- <br />v , <br />CCS F— <br />U <br />to <br />o� <br />mN <br />W <br />t —E <br />— 8 <br />CDcM <br />c M <br />�O M <br />_ <br />N <br />O O N <br />cl <br />o <br />01- o <br />t V- 0 <br />cc <br />¢ CDav <br />co0 o 0 <br />rn Q o <br />BD. <br />v <br />N b <br />LU O M o <br />o o c� o <br />o <br />Z W a <br />U) <br />us aW <br />ZV � � �' <br />0 U <br />x <br />0 <br />N g -�� <br />LLZ <br />W a �,[#11Illf,0 ° <br />❑/� <br />4VW.FDSF COO <br />k 3^`y�? <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 Florida Building Code - <br />Residential 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 />LENNAR <br />4600 W. Cypress St, Suite 200 1 Tampa, FL 33607 <br />www.LennarTampa.com <br />oZ <br />0 <br />�5 <br />wo <br />of <br />f� <br />w¢lr0� <br />�zo0 <br />ooce <br />Lu <br />�ozz <br />LU <br />uJ 00 <br />O��o <br />U on <br />Z 0 <br />8uJ <br />S.. <br />� <br />Z °Z <br />r U <br />f7g, Z <br />C <br />V7 <br />� <br />< <br />�' <br />J <br />J <br />U <br />= <br />S <br />°0o <br />o <br />J 4k ¢ <br />LL <br />O <br />ahe <br />O <br />� 0.a ° J <br />fV <br />CC <br />Z¢Z;� <br />Wa <br /><aw� <br />a <br />aa� <br />2o�o <br />z <br />Z <br />�--� <br />of a <br />J <br />Ln <br />r-1 <br />W <br />Q <br />aW�� <br />v,Fw° <br />g¢a <br />l� <br />d- <br />Q <br />z <br />z <br />CtQ° <br />z <br />1 o <br />In <br />0 <br />oo <br />g <br />=LLJ <br />SCALE : AS NOTED <br />DATE : 7/31 /2018 <br />TECH: MJAM ES <br />VERSION NO. 4mO <br />SHEET NO. <br />5.0 <br />