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BEAM P
LUS FOR
N
EW
B
UILDINGS
V
ERSION
1.2
E
NERGY
U
SE
(E
U
)
E
U
1 O
PTION
2 A
LTERNATIVE
R
OUTE
: P
ASSIVE
D
ESIGN
Copyright © 2012 BEAM Society Limited. All rights reserved.
Page 96
4
E
NERGY
U
SE
4.1
A
NNUAL
E
NERGY
U
SE
E
U
1
- O
PTION
2 A
LTERNATIVE
R
OUTE
: P
ASSIVE
D
ESIGN
E
XCLUSIONS
None
O
BJECTIVE
Passive building design allows buildings to respond to the local climate;
reducing the reliance on active servicing for human comfort. This in turn
reduces energy consumption and associated carbon dioxide emissions.
This alternative route considers:
Site planning and building orientation;
Envelope heat transfer;
Natural ventilation;
Daylight design; and
Common area servicing.
It encompasses EU1: Reduction of CO
2
Emissions, EU2: Peak Electricity
Demand Reduction and EU13: Energy Efficient Building Layout from the
conventional assessment; these credits should not be assessed when
following this route to prevent double counting.
This passive design route was developed for residential buildings and
their unique operating criteria, so it is not applicable to non-residential
buildings.
C
REDITS ATTAINABLE
20
P
REREQUISITES
Eu P1 Minimum Energy Performance.
C
REDIT REQUIREMENT
Passive Building Design
(a) Site Planning/Building Orientation
Site Planning
1 credit attained if the permeability of the site is in accordance
with APP 152.
2 credits attained if the permeability of the site is 33% or more in
both projection planes in accordance with APP 152.
Alternatively the second credit can be achieved by:
Carrying out a performance assessment to show an
improvement in ventilation performance for the proposed case
compared with a site with a permeability of 33%.
Building Orientation
1 credit attained if the average solar irradiation of all facades is ≤
80% of baseline solar irradiation value of 395 kWhr/m
2
/ apr-oct.
(b) Building Envelope
Prescriptive Approach
1 credit if 28.0 W/m
2
≤ OTTV < 30.0 W/m
2
.
2 credits if 26.0 W/m
2
≤ OTTV < 28.0 W/m
2
.
3 credits if 24.0 W/m
2
≤ OTTV < 26.0 W/m
2
.
4 credits if 22.0 W/m
2
≤ OTTV < 24.0 W/m
2
.
5 credits if 20.0 W/m
2
≤ OTTV < 22.0 W/m
2
.