Laserfiche WebLink
1 <br />J <br />0 <br />•U <br />J <br />N <br />C� <br />N <br />O <br />S <br />0 <br />N <br />0 <br />O <br />d <br />N <br />O <br />N <br />S <br />W <br />m <br />v <br />N <br />ATTIC VENTILATION CALCULATIONS-- Al (TRA) <br />ATTIC VENTILATION REQUIRED UPPER VENTILATION PROVIDED <br />1/150 Rule Ridge <br />1/300 Rule Off -Ridge <br />(No Upper Ventilators Vent Amt <br />Req.) (Must Provide Upper Ventilators) (Ft.) Amt. <br />- - - -- — Total <br />ATTIC <br />SPACE SQ. FT. <br />ventilation <br />ion I of of vented <br />vensoffit <br />required needed <br />Ventilation <br />Provided <br />Total SQ. <br />SQ. FT.' <br />SQ. IN. of <br />i by Upper <br />IN. of <br />of <br />ventilation to <br />SQ. IN. of <br />SQ. IN. of Ventilators <br />ventilation <br />vented <br />be provided <br />Ventilation ! <br />Ventilation (See Elev) <br />required soffit <br />by upper <br />needed <br />ventilators <br />Main 23.00000 1.000000 <br />Floor 2008 1928 275 964 69 482 0 — - 483.0 <br />(Zone 1) 345.0 138.0 <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 — ELEV—Al <br />SCALE: %4°=V-0" <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 />Coastal Flashings <br />All flashing material for coastal locations (ex: within 3,000 feet of the <br />ocean) shall be corrosion resistant material (ex: zinc and/or stainless <br />steel) and shall be selected for compatibility with adjacent wood <br />preservatives per the manufacturer's recommendations. <br />45x <br />, <br />�: �trrrr,�;,tttt4 <br />To the best of the Engineers 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. Engineers signature and seal is only for <br />the structural engineering portions of the drawing pages bearing <br />Engineers signature and seal. <br />Q <br />`V <br />Q C 0 0 01 # <br />V CM N N C N LL <br />r m at °D <br />O d M m-0 J* W W <br />Nl 7rJy u-LLaa <br />M 04 2 <br />y S W N� <br />a > C1 LL 52 C' aLu Y <br />�0z °' <br />13 <br />CNco O19=C <br />W E1-- <br />H2cF) <br /><o <br />NQM2 <br />U, _ N N O 5 Sg <br />W <br />Z (V 8 <br />Z O Q <br />Q � <br />d NMAP <br />u_ <br />tJ1 z <br />Uo <br />LL <br />.0 � a <br />O W <br />N E <br />l/1 � <br />o <br />, <br />U 0° <br />W rn <br />.. <br />0 8 <br />i <br />_ � d <br />U 'o <br />u7 � <br />• <br />� Q <br />r~ <br />Q o <br />O <br />w <br />Cl) <br />ii 3 <br />z <br />z¢ <br />J <br />LL <br />Ov <br />EE <br />w o <br />Z <br />wo <br />Z o <br />Z® <br />oa <br />(6_o <br />QO <br />Z <br />O¢ <br />ww <br />CV <br />w0 <br />¢� <br />rp <br />Cl)�roZ <br />U <br />O <br />z <br />Z <br />¢ w <br />Cn `n <br />3 <br />¢ <br />0Z <br />U <br />a. � <br />g� <br />� <br />a <br />w w <br />W <br />K0 <br />�- <br />o <br />k <br />�— <br />w <br />J <br />o <br />cD <br />w� <br />�0 <br />a <br />�t <br />is <br />�3 <br />0 CM <br />= <br />CC <br />M <br />iu <br />nL1 <br />W <br />0 <br />.M� <br />L0 <br />M <br />L.L <br />.-. <br />Q <br />C s <br />C� <br />m <br />O N <br />T <br />� O <br />Ln <br />^ <br />.� � N <br />r <br />L. n <br />Y i <br />r <br />r <br />� L.n <br />o N <br />r <br />ai <br />t"7 <br />0 <br />Z <br />E O N <br />`m <br />E <br />O <br />c <br />FLU <br />J Q <br />_J <br />JOB <br />NO: 20-1131 <br />SCALE : AS NOTED <br />SHEET NO. <br />5 <br />