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Attic Ventilation <br />Attic Ventilation to be in compliance with the Florida Building Code 5th Edition <br />(2014) Residential R806. <br />LOU <br />The Minimum net free ventilating area shall be 1/150 of the area of the vented <br />rm"M 11) <br />space. The ventilating area may be reduced to 11300 provided that at least 40% <br />lW __El <br />but no more than 50% of the required ventilation is provided in the upper portion o <br />the space to be ventilated.Upper ventilators shall be located no more than 3 feet <br />- VENTED SOFFIT 47 SQ. FT. (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 Ff. <br />.. ' ............. • .......... • ..... • • ............. • ... • ..... • .. • ..... •....................Q.....................................................................:............................ • • • OFF -RIDGE VENTS 138 SQ. IN. OF NET FREE AREA / UNIT <br />• SOFFIT VENTS - 7 SQ. IN. OF NET FREE AREA / SQ. FT. <br />7.1 :: • *If not enough vented soffit is provided due to fire protection, the contractor shall use the <br />jj • .. following approved vents: <br />.'.:�1 ''• �': • LOMANCO DECK -AIR (Shingle Roof) - 9 SQ. IN. OF NET FREE AREA / FT. <br />j -Formula: (Sq. Ft. Soffit Needed) x 7 = (Sq. In. Needed) / 9 = Linear Ft. of Dock -Air Needed) <br />• O'HAGIN (Tile Roof) - 86.25 SO. IN. OF NET FREE AREA / VENT <br />.Formula: (Sq. Ft. Soffit Needed) x 7 = (Sq. In. Needed) 186.25 = Amount of UHagin Vents Needed <br />i is •: . <br />:1 ��• <br />V. <br />• 4 <br />• • '•• <br />i <br />•'1� I': <br />:;:111� <br />i <br />•-A <br />LL_ <br />�4 t�.. 00 <br />• <br />F- r.F_- <br />w �i ��� w <br />z z <br />is <br />... ZONE-1 i.: <br />ATTIC SPACE <br />ATTIC VENTILATION CALCULATIONS B <br />... 3038 SQ. FT. a ". <br />(•.: . <br />i N:•: <br />i�.: <br />•.:i �:: is <br />ENTED SOFFI �'•'• <br />16 SQ. FT, �' <br />::. ..... ..»r . �.� ... �:. <br />rr ••• • <br />rrr ... . <br />,* ...P - o. VENTED SOFFIT 5 SQ. FT. VENTED SOFFIT 35 SQ. FT. <br />- ROOF PLAN-B_ <br />SCALE: %4"=1'-O" <br />- <br />ATTIC VENTILATION REQUIRED UPPER VENTILATION PROVIDED <br />1/150 Rule 1/300 Rule Ridge Vent Amt <br />(No Upper Ventilators (Must Provide Upper Ventilators) (Ft.) Off -Ridge Amt. <br />Req.) <br />Total Ventilation <br />ATTIC Provided by <br />SPACE SQ. FT. Total SQ. SQ, FT. SQ. IN. of Upper <br />SQ. IN. of of ventilation to Ventilato <br />rs <br />7.�J <br />ventilation <br />of vented IN. of vented be SQ. IN. of SQ. IN: of (See Elev) <br />provided <br />required soffit ventilation soffit by upper Ventilation Ventilation <br />needed required needed ventilators <br />i <br />Main 14.0 3.0 <br />Floor 3038 2916 417 1458 104 729 624.0 <br />(Zone 1) 210.0 414.0 <br />0 0 0 0 0 0 0.0 0.0 0.0 <br />'�i <br />0.0 0.0 <br />0 0 0 0 0 0 0.0 0.0 0.0 <br />0.0 0.0 <br />**NOTE** <br />GENERAL CONTRACTOR MUST ENSURE THAT PROPER VENTILATION 1S PROVIDED AT EAVES/SOFFITS AS <br />REQUIRED BY FBC 5th ED. RESIDENTIAL, <br />VENTED SOFFIT LEGEND <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 />I <br />r <br />Z M <br />o <br />Z <br />Q <br />Z <br />nn�' <br />W <br />W ~ <br />O � o <br />F— m r.- <br />U mM <br />C t0 M W <br />1— E � 'C <br />cWIN co <br />o <br />-- U <br />0.90 <br />U <br />D. <br />co <br />LU <br />to <br />8 <br />Yn <br />ao <br />C c u7 oa d: <br />aCD Qo <br />A' N•C B•D C <br />��� {��,� mid\� �•�C <br />IS! <br />Sty <br />To the best of the Engineer's knowledge, information, and <br />belief, the structural plans and speci <br />fCD <br />i <br />cations contained <br />within these drawings comply with the Florida Building <br />Code 5#h 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 />0 <br />0 <br />Z N <br />O a; � <br />I>iV)Fri <br />O <br />(ICie 311 n <br />d cn <br />a -. <br />a �00 <br />z�� <br />W <br />d' <br />0 <br />Woo <br />u.rzt-"'a <br />UI-�tWn <br />Ln <br />0 <br />O <br />�OZ OzaU <br />Z � � U i Q� <br />=�ZwQI""Z <br />J <br />O OSO�jWN <br />r-1 ~aOZOO <br />O <br />N / <br />wLU <br />gzgo <br />l <br />\ <br />'� Z � p=wo� <br />t'p � Wao <br />(`-4 HH82 <br />0 <br />�o <br />OW f] <br />aola <br />Li O JtY�W <br />0 O U. ILLaa�� <br />j �— z <br />Z 0 a � <br />H J <br />SCALE : AS NOTED <br />PLOT DATE: 12/7/2012 <br />TECH: MJAMES <br />VERSION N0. <br />5oll <br />JOB N0: 17-1397 <br />SHEET NO. <br />4 <br />r <br />Z M <br />o <br />Z <br />Q <br />Z <br />nn�' <br />W <br />W ~ <br />O � o <br />F— m r.- <br />U mM <br />C t0 M W <br />1— E � 'C <br />cWIN co <br />o <br />-- U <br />0.90 <br />U <br />D. <br />co <br />LU <br />to <br />8 <br />Yn <br />ao <br />C c u7 oa d: <br />aCD Qo <br />A' N•C B•D C <br />��� {��,� mid\� �•�C <br />IS! <br />Sty <br />To the best of the Engineer's knowledge, information, and <br />belief, the structural plans and speci <br />fCD <br />i <br />cations contained <br />within these drawings comply with the Florida Building <br />Code 5#h 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 />0 <br />0 <br />Z N <br />O a; � <br />I>iV)Fri <br />O <br />(ICie 311 n <br />d cn <br />a -. <br />a �00 <br />z�� <br />W <br />d' <br />0 <br />Woo <br />u.rzt-"'a <br />UI-�tWn <br />Ln <br />0 <br />O <br />�OZ OzaU <br />Z � � U i Q� <br />=�ZwQI""Z <br />J <br />O OSO�jWN <br />r-1 ~aOZOO <br />O <br />N / <br />wLU <br />gzgo <br />l <br />\ <br />'� Z � p=wo� <br />t'p � Wao <br />(`-4 HH82 <br />0 <br />�o <br />OW f] <br />aola <br />Li O JtY�W <br />0 O U. ILLaa�� <br />j �— z <br />Z 0 a � <br />H J <br />SCALE : AS NOTED <br />PLOT DATE: 12/7/2012 <br />TECH: MJAMES <br />VERSION N0. <br />5oll <br />JOB N0: 17-1397 <br />SHEET NO. <br />4 <br />