Sustainability Flashcards

1
Q

Why is sustainability important in construction?

A

Built environment accounts for 40% of CO2 emissions worldwide.
Can result in hazardous waste.

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2
Q

What is sustainable development?

A

Development which meets the need of the present without compromising future generations.
Social, environmental and economic.

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3
Q

Define social, environmental and economic considerations in relation to sustainability?

A

Environmental - prevent harmful impacts on environment.
Economic - efficient use of resources to meet needs of users.
Social - respond to needs of the wider community.

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4
Q

How do you measure sustainability?

A

BREEAM.
Building Research Establishment Environmental Assessment Methodology.
Independent certification of performance of build environment.

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5
Q

What is the Paris Agreement?

A

Global framework to avoid climate change by limiting global warming to below 2 degrees celsius.
Each country must report on contribution it undertakes.

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6
Q

What measures does your company take in relation to sustainability?

A

Recycling.
Sensored lights.
LED lighting.
Carshare and public transport.

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7
Q

Name some technology available to help meet Part L of the Building Regulations (Conservation of fuel and power)?

A

Wind turbines
SUDS
Insulation
Ground source heat pumps.
Rainwater harvesting.
Green roofs

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8
Q

What is a Green Roof?

A

Roofs that are partially or completely covered with plants and vegetation.

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9
Q

What is a U value?

A

U-values measure how effective a material is as an insulator.
Lower value is better.

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10
Q

How do photovoltaics work?

A

PVs convert sunlight into electricity.

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11
Q

How does a soakaway work?

A

Solution to standing surface water, is a large hole that receives water from a pipe. Helps water percolate through soil.

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12
Q

How do ground source heat pumps work?

A

Network of pipes buried underground, and a heat pump. Fluids absorb heat stored in the ground and transfers to the heat pump which goes to the building.

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13
Q

How does rainwater harvesting work?

A

Collects rainwater from a buildings roof and filters to store in an underground tank.

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14
Q

Name some assessment schemes/criteria for sustainability measurement?

A

LEED - Leadership in Energy and Environmental Design.
BREEAM - Building Research Establishment Environmental Assessment Methodology.
SKA - Operated by RICS for fitouts.
CEEQUAL - Civil engineering, infrastructure and landscaping.

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15
Q

Latest version of BREEAM?

A

Version 6 2022.

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16
Q

What are the BREEAM assessment categories?

A

Management.
Energy.
Health and wellbeing.
Water.
Materials.
Waste.
Pollution.
Innovation.

17
Q

Advantages of BREEAM?

A

Demonstrates level of achievement.
Lowers environmental impact.
Reduce operating cost.
Improves value of building.

18
Q

What are BREEAM thresholds for different ratings?

A

30
45
55
70
85

19
Q

What does “net zero carbon” mean for a new build?

A

Amount of carbon emissions related to construction is zero or negative.

20
Q

What does “net zero carbon” mean for a operational energy?

A

Amount of carbon emissions from operations on annual basis is zero or negative.

21
Q

How can solar gain be reduced in buildings?

A

External shading.
Limiting glazed areas.
Reduce glazing to south.
Reflective film on glazing.

22
Q

Which building regulations apply to sustainability?

A

Approved Document Part L - Conservation of Fuel and Power.

23
Q

What is Passivhaus?

A

Design criteria for very low energy buildings.
Reduces heat loss to minimum.

24
Q

What is an Environmental Impact Assessment?

A

Process of evaluating environmental impact of a project.

25
Q

What is the SBEM tool?

A

Simplified Building Energy Model.
Generates Energy Performance Certificates for non-domestic buildings.

26
Q

What is DEC?

A

Display Energy Certificates for public buildings - Use a scale of A to G.

27
Q

What is an EPC?

A

Energy Performance Certificate - A to G and indicates how much it costs to heat and power a property.

28
Q

What is Minimum Energy Efficient Standards in relation to energy performance?

A

Unlawful for landlords to grant new leases on commercial premises if below E rated.
Same for domestic ratings.

29
Q

What is SUDS?

A

Sustainable Urban Drainage Systems.
Efficient management of surface water in urban environments, in addition to regular drainage.

30
Q

Examples of SUDS?

A

Swales.
Green roofs.
Ponds.
Permeable surfaces.