Sustainability Flashcards
What scoring and rating for BREEAM assessed buildings?
Outstanding >= 85% Excellent >= 70% Very Good >= 55% Good >=45% Pass >= 30% Unclassified <30
What are BREEAM credits?
- 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
What are the different BREEAM credit categories?
- 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
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?
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
What is the definition of Sustainability?
Meeting the needs of the present without compromising the ability of future generations to meet their needs
What percentage of the total UK carbon emissions are attributed to the built environment?
40% - 45%
List some sustainable construction methods
- 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
What is a Waste Management Plan?
- Defines how materials will be managed efficiently and disposed of legally
- Defines how the re-use and recycling of materials will be maximised
Name some recyclable / reusable / sustainable materials?
Recyclable:
- Glass
- Wood
- Plasterboard (can be used for cement)
Reusable:
- Bricks
- Demolition waste for aggregate
- Building foundations
Sustainable:
- FSC wood (Forest Stewardship Council)
What is the definition of a sustainable material?
- Does not deplete non-renewable (natural) resources
- Has no adverse impacts on the environment when used
Name some of the acts and regulations in the UK that relate to sustainability
Acts:
- Clean Air Act 1993
- Climate Change Act 2008
- Energy Act 2011
Regulations:
- Building Regulations (Part L)
- Minimum Energy Efficiency Standards
What is the Climate Change Act 2008?
- 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
What is the Energy Act 2011?
- Big 6 energy providers must deliver efficiency measures to domestic users
- Introduced Green Deal: offered loans for energy saving measures eg. insulation
What is Part L of the Building Regulations?
- 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
What are the Minimum Energy Efficiency Standards?
- 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