BCA Green Mark for Non-Residential Building Version NRB/3.0

BCA Green Mark Version NRB/3.0Non-Residential Building CriteriaPart 1 – Energy EfficiencyGreen Mark Points(B) Applicable to Non Air-Conditioned Building Areas (with an aggregate non air-conditioned areas > 10 % oftotal floor area excluding carparks)1-4 Natural Ventilation (exclude carparks)Enhance building design to achieve good naturalventilation.(a) Proper design of building layout that utilizesprevailing wind conditions to achieveadequate cross ventilation.(b) Use of ventilation simulation software or windtunnel testing to identify the most effectivebuilding design and layout to achieve goodnatural ventilation.0.8 point for every 10% of units/rooms withwindow openings facing north and south directionsPoints awarded = 0.8 x (% of units/10)(Up to 8 points)Points will only be awarded provided that therecommendations from ventilation simulationsare implemented(5 points)Exception : For existing buildings, Item 1.3(a) may beexcluded in computation, the total Green Mark Pointsfor Sub-Total (B) under Part 1 will be proratedaccordingly.Sub-Total (B) :Sum of Green Mark Points obtainedfrom Item 1-3 to 1-4Effective Date : 31 Jan 2008 8