Sustainability Flashcards

1
Q

What scoring and rating for BREEAM assessed buildings?

A
Outstanding >= 85%
Excellent >= 70%
Very Good >= 55%
Good >=45%
Pass >= 30%
Unclassified <30
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2
Q

What are BREEAM credits?

A
  • An asset score awarded for an assessment issue when a benchmark is reached, determined by a BREEAM assessor
  • Assessment issues are sub-divisions of BREEAM categories
  • Category score is calculated according to number of credits achieved and its category weighting
  • Once development fully assessed, the final performance rating is determined by the sum of the weighted category scores
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3
Q

What are the different BREEAM credit categories?

A
  • Management: adoption of sustainable management practices in connection to design, construction, commissioning, handover and aftercare
  • Heath and wellbeing: encourages increased comfort and H&S of occupants and visitors
  • Energy: design of energy efficient building solutions, systems and equipment that support the sustainable use of energy in the building and sustainable management in the building’s operation
  • Water: sustainable use of water in the operation of the building, identify reducing potable water consumption and minimising losses through leakage
  • Materials: responsible sourcing of materials, low embodied impact
  • Transport: access to sustainable means of transport such as public transport or alternatives means of reducing car journeys
  • Pollution: prevention and control of pollution and surface water run-off; reduce impact of light, noise, flooring and air pollution
  • Land use: habitat protection and creation, improvement of long-term biodiversity; use of brownfield sites, or mitigation and enhancement of ecology
  • Waste: sustainable management of waste through construction, operation and future maintenance
  • Innovation (additional 10% credits) - exemplary performance not within or go beyond other credits
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4
Q

On a project example you had a project that was aiming for BREEAM Excellent – how many credits do you need for Excellent, and can you give a few examples of credits?

A

Credits are multiplied by weighting of each category, need >70% for Excellent

  • Management - Project Brief & Design - Sustainability Champion appointed
  • Materials - Responsible sourcing of materials: Incorporated FSC timber into the frame of a building
  • Health and Wellbeing - Internal lighting strategy
  • Energy - Use of passive ventilation and cooling
  • Transport - Close to public transport (train station / buses)
  • Waste - operational waste solutions built into design
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5
Q

What is the definition of Sustainability?

A

Meeting the needs of the present without compromising the ability of future generations to meet their needs

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6
Q

What percentage of the total UK carbon emissions are attributed to the built environment?

A

40% - 45%

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7
Q

List some sustainable construction methods

A
  • Prefabrication
  • Off site manufacturing
  • Lean Manufacturing
  • Sustainable material selection
  • Project energy plan
  • Waste Management plan
  • Water plan
  • Aim for sustainability requirements at tender, e.g. BREEAM
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8
Q

What is a Waste Management Plan?

A
  • Defines how materials will be managed efficiently and disposed of legally
  • Defines how the re-use and recycling of materials will be maximised
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9
Q

Name some recyclable / reusable / sustainable materials?

A

Recyclable:

  • Glass
  • Wood
  • Plasterboard (can be used for cement)

Reusable:

  • Bricks
  • Demolition waste for aggregate
  • Building foundations

Sustainable:
- FSC wood (Forest Stewardship Council)

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10
Q

What is the definition of a sustainable material?

A
  • Does not deplete non-renewable (natural) resources

- Has no adverse impacts on the environment when used

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11
Q

Name some of the acts and regulations in the UK that relate to sustainability

A

Acts:

  • Clean Air Act 1993
  • Climate Change Act 2008
  • Energy Act 2011

Regulations:

  • Building Regulations (Part L)
  • Minimum Energy Efficiency Standards
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12
Q

What is the Climate Change Act 2008?

A
  • Followed Kyoto Protocol 2005
  • Commitment to cut emissions of greenhouse gases by 34% by 2020 and 80% by 2050 (1990 base date)
  • Climate Change Committee established
  • Carbon Plan established
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13
Q

What is the Energy Act 2011?

A
  • Big 6 energy providers must deliver efficiency measures to domestic users
  • Introduced Green Deal: offered loans for energy saving measures eg. insulation
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14
Q

What is Part L of the Building Regulations?

A
  • Conservation of fuel and power - made by: limiting heat gain and losses and providing building services which are efficient, have effective controls and are properly commissioned and that information is provided so that the building can be operated efficiently
  • Target CO2 emission rates for new buildings
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15
Q

What are the Minimum Energy Efficiency Standards?

A
  • To improve energy efficiency in buildings
  • Introduced in 2015
  • Buildings given EPC ratings (energy performance certificate) A - G
  • Effective April 2018: F and G rated properties unlettable
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16
Q

What is Leadership in Energy and Environmental Design (LEED)?

A
  • Green building certification used globally
  • Set of rating systems for the design, construction, operation and maintenance of buildings

Scoring:

  • 100 points across 6 categories:
  • Sustainable sites
  • Water efficiency
  • Energy and atmosphere
  • Materials and resources
  • Indoor environment quality
  • Design innovation
Ratings:
Certified - 40-49
Silver - 50-59
Gold - 60-79
Platinum - >80
17
Q

What is the SKA Rating?

A
  • RICS environmental assessment method

- Created for non-domestic fit-out projects, rates sustainability of the fit-out separate from the base build

18
Q

What are the pillars of sustainability?

A
  • Social: development should respond to the needs of the wider community
  • Environmental: preventing harmful impacts on the environment, e.g. carbon footprint
  • Economic: efficient use of resource, including labour, and making sure the design and construction meets the current and functional needs of the users
19
Q

What is Whole Life Costing?

A

Looks at all costs incurred by a building from it’s inception, through construction and operation, to its disposal

20
Q

How long do EPC’s last?

A

10 years

21
Q

Which buildings are exempt from EPC ratings?

A
  • Temporary buildings
  • Places of worship
  • Standalone buildings w/ less than 50sqm floor space
  • Industrial/agricultural buildings w/ low energy reqs
  • Protected buildings
  • Buildings to be demolished
22
Q

What is the RIBA climate challenge 2030?

A
  • Reduce water by 40%
  • Reduce operational energy demand by at least 75%, before offsetting
  • Reduce embodied carbon by at least 50-70%, before offsetting (non-domestic - domestic)
  • Targets on Health & Wellbeing
23
Q

What does the Construction 2025 strategy set to achieve?

A
  • Partnership between industry and Government to transform the construction industry
  • 33% reduction in both the initial cost of construction and the whole life cost of assets
  • 50% reduction in the overall time from inception to completion for new build and refurbished assets
  • 50% reduction in greenhouse gas emissions in the built environment
  • 50% reduction in the trade gap between total exports and total imports for construction products and materials
24
Q

What are the typical environmental issues faced on a construction site?

A
  • Dust
  • Noise
  • Use of chemicals
  • Waste disposal
  • Sewage treatment
  • Burning petrol / diesel
25
Q

Name some sustainable construction technology

A
  • Wind turbines
  • PV cells
  • Ground source heat pumps
  • Rainwater harvesting
  • Green roofs
  • Sustainable Urban Drainage Systems (SUDS)
  • Solar shading
  • Natural ventilation
26
Q

What is carbon sequestration?

A

The removal and long-term storage of carbon dioxide in materials such as timber for construction

27
Q

What Sustainability changes have been made to the RIBA 2020 Plan of Work?

A
  • Links to RIBA 2030 Challenge
  • New Sustainability guides to support
  • Challenge to designers to have a focus on sustainable outcomes from the outset of a project
  • Sustainability outcomes and targets to be agreed with the client during Stage 1, reviewed throughout the design and verified in Stage 6/7.
  • Introduce Plan for Use which is a soft landings approach
  • Sustainability Strategy which maps the outcomes and plan for use principles through all stages
  • Reinforces requirement to appoint a sustainability champion at the outset of the project
28
Q

Can you give me an example of Economic sustainability?

A
  • Local employment on construction sites in order to support and sustain the local economy
  • Sourcing of materials in local economy
  • Maintenance being undertaken within local markets
29
Q

Can you give me an example of Environmental Sustainability?

A
  • Protecting the environment through an approach such as ensuring a net gain in biodiversity in a development
30
Q

Can you give me an examples of Social sustainability?

A
  • Investing in people, their training and their development in order for them to support themselves and others better in the future
31
Q

What is SKA?

A
  • RICS scoring criteria around commercial fit out
  • Based on Good Practice Measures
  • Awarded in Bronze, Silver and Gold
32
Q

What do Whole-life costs include?

A
  • Procurement costs (including land acquisition, design, construction, equipment, etc.)
  • Maintenance and refurbishment costs
  • Operational costs
  • Disposal costs
33
Q

What is the World Built Environment Forum?

A
  • RICS initiative
  • Advance discussions of critical importance
  • Inspiring positive and sustainable change for a prosperous and inclusive future.
  • Published the 2021 sustainability report
34
Q

What is the main requirement under Part L?

A

To meet carbon emission target rate, measured in kg of carbon per m2 per year