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Install Energy Star -labeled power vented fans or Energy Star -labeled range hoods. All <br />fans/hoods shall exhaust to the exterior. Kitchen exhaust fan may be BOB -ducted only if the <br />pro,ject's Mechanical Engineer determines it is infeasible to do so and there is at least one <br />continuously operating bathroom exhaust fan. <br />See national Green Communities Criteria for additional background on intent and things to <br />consider. <br />Ventilation <br />MANDATORY <br />Except for Moderate Rehabilitation <br />How: <br />The national Green Communities Criteria is modified as follows: <br />Install a ventilation system for the dwelling unit that provides 15 cubic feet per minute of fresh <br />air, per bedroom plus 15 cubic feet per minute of fresh air. <br />See national Green Communities Criteria for additional background on intent and things to <br />consider. <br />Basements and Concrete Slabs — Vapor Barrier <br />IN <br />MANDATORY <br />How: <br />The national Green Communities Criteria is modified as follows: <br />In EPA Zone l: no modification. This criterion is mandatory as written. <br />In EPA Zone 2: Install vapor barrier as written or in strict accordance with the required <br />Geotechnical Engineer's report, including subsurface water and moisture vapor <br />recommendations, and in accordance with the current American Concrete Institute (ACI) <br />recommendations. <br />Exemption (Zone 1 and Zone 2): attached and underground vehicular parking garages that <br />are highly ventilated for exhaust. <br />See national Green Communities Criteria for additional background on intent and things to <br />consider. <br />6 Minnesota Overlay to the Green Communities Criteria <br />April 2007 <br />