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• <br /> • <br /> • <br /> • <br /> VENTILATION REQUIREMENTS <br /> • TABLE R403.5.2 <br /> NUMBER OF BEDROOMS <br /> • <br /> - _ _ __ .. _ _ .. - _1. I _. _ 2 _. . - - 3 - - 4 - - -- 5— - I- - - 62 - • . <br /> Total/ Total/ Total/ Total/ Total/ Total/ <br /> Conditioned space.(in sq. ft.) Continuous Continuous Continuous Continuous Continuous Continuous <br /> • 1000-1500 60/4075/40 90/45 105/53 120/60 135/68 <br /> 1501-2000 70/40 1 85/43 100/50 115/58 130/65 145/73 <br /> 2001-2500 80/40 95/48 110/55 _ 125/63 140/70 155/78 <br /> 2501-3000 90/45 I 105/53 120/60 135/68 150/75 165/83 <br /> 3001-3500 100/50 ' 115/58 130/65 145/73 160/80 175/88 <br /> 3501-4000 110/55 125/63 140/70 155/78 170 85 185/93 • <br /> 4001-4500 I 120/60 135/68 150/75 165/83 0.110/90 195/98 <br /> 4501-5000 130-65 145/73 160/80 175/88 190)5 205/103 <br /> 5001-5500 I . 140/70 155/78 170/85 185/93 200/100 215/108 <br /> 5501-60002 I 150/75 165/83 180/90 195/98 210/105 I 225/113 <br /> 1. Conditioned space includes the basement and conditioned crawl spaces. <br /> 2. If conditioned space exceeds 6000 sq.fi.or there are more than 6 bedrooms,use Equation R403.5.2 <br /> • <br /> R403.5.2 Total Ventilation rate. <br /> The mechanical ventilation system shall rovide sufficient outdoor air to equal the total ventilation rate average <br /> for each 1-hour period in accordance with Table R403.5.2, or Equation 403.5.2, based an the number of bedrooms and <br /> square footage of conditioned space,including the basement and conditioned crawl spaces. <br /> For the purposes of Table R403.5.2 and Section R403.5.3,the following applies: <br /> a. Equation R403.5.2 Total ventilation rate: . <br /> Total ventilation rate (cfm)=(0.02 x square feet of conditioned space)r(15 x(number of bedrooms=1)) <br /> b. Equation R403.5.2.1 Continuous ventilation rate:Continuous ventilation rate (cfm)=Total ventlation rate/2 <br /> Amount Total <br /> Amount*Continuous b <br />