301062 Environmental Building Design - ESD Project

This project focuses on Environmental Building Design (ESD) for a medium-density residential development. The assignment requires a review of an existing design and its reconfiguration to incorporate ESD principles. The student has detailed a specific unit, integrating various ESD elements into its fabric and layout. Key strategies include rainwater harvesting, bioswales for stormwater management, daylight harvesting, renewable materials, passive solar design, and energy-efficient systems like solar photovoltaic and heat pumps. The project also addresses waste water recycling, shading, and the use of sustainable materials. The design incorporates elements such as smart landscape water efficiency, and masonry walls with insulation to improve the building's energy performance and reduce its environmental impact. The student has also considered the use of green tags to offset the carbon impact. The project demonstrates a holistic approach to sustainable design, aiming to minimize environmental impact while maximizing building performance.

GSPublisherVersion 0.50.100.100
GSPublisherEngine 0.80.100.100
F
6 x 0.158 = 0.950
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2
3
4
5
6
16 x 0.063 = 1.000
S-02S-02
Living
Dining
Kitchen
Bed
Bed Bed
Robe Robe Robe
Bath
Ensuite
Garage
linen
laundry
F
10mm plaster
40mm air space
R1.5 bulk insulation or 40mm air space
Punctured foil or housewrap, or any other
approved weatherproofing membrane
material
150mm reinforced masonry block
NCC Vol 2 Part 3.3.2, Part 3.3.3, Part 3.3.4
Detail A: Masonry load bearing wall
H
L
Day light harvesting
large windows facing north and
well shaded windows on east & west admit diffuse,
indirect light to reduce the need for electric lighting
and improve interior visual quality
Renewable materials
FSC- certified wood for exterior finishes and details
Smart Landscape
Water effecient species and irrigation techniquesi minimize
amount of potable water consumed
Raised Floor Ventilation
Low pressure below floor plenums allow distribution of
conditioned air without using inefficient HVAC units.
Refer to the section below
Inflitration Basin
Filters and cleans water from water from
the roof top beforethe water runs to
the storm water system
Bright roof
Reflect heat to keep the roof cool
Water
Rainwater harvest: Rainwater harvesting, filtration and resuse
for landscape irrigation
Bioswales: captures and treats run off from site prior to
discharge back into the environment
Recycled waste water: recycle treated waste water and / or
as polished greywater for flushing
Energy
Solar photovoltaic: Generate on-site renewable energy with
solar thermal and electric systems on roof tops and gardens.
Building Design: Orientation, high performance facades design
to reduce building loads
Passive strategies: passive strategies such as natural ventilation
and daylighting to take advantage of the resources on site
Green tags: offset carbon impact through purchase of
renewable energy green tags
Control floods: stormwater runoff into biowales, then
filtered and stored in water wall tanks
Heat pump
Condensing boiler
Electric panel
Green tags purchase
DETAIL: CENTRAL UNIT
Passive solar design
glazing: Minimize east - west glazing
N
Shading: overhand design for shading. Diagram courtesy of the
Arizona Solar Center. The steeper arrow shows the angle of the
sun's rays during the summer, while the shallower arrow indicates
the angle during the winter.
Bioswales captures run off water
Tank used for harvesting
rainwater tank from the roof
with excess water directed to
stormwater
Treatment system
house
Sludge removed
Sustainability from a whole system Approach
Compositing toilet
Greywater system ( inground distribution)
Rainwater catchment for portable water
Passive solar with chimney for backup heating
Salvaged wood used for structural members
Grid connected PV system
Wildflower meadow in place of lawn
Masonry wall with insulation, air space, weatherproof membrane
material and plaster. Refer to detail A
Wall insulation
Garage drywall for fire resistance with spray foam
insulation to avoid loss of heat from the living space due
to air leakage
Passive solar design
Unvented roof
Design strategies
L = H/2
ENVIRONMENTAL SUSTAINABLE DESIGN
Raised floor ventilation