SUSTAINABLE HOUSING 2020
A VISION FOR A MORE SUSTAINABLE HOUSING TYPOLOGY
WELSH GOVERNMENT ANNOUNCE CLIMATE CHANGE EMERGENCY 2019
“Our sustainable development and environmental legislation is already recognized as world leading and now we must use that legislation to set a new pace of change.”
PROSPERITY FOR ALL – A LOW CARBON WALES
“A Low Carbon Wales, which sets out 100 policies and proposals to meet the 2020 carbon emissions targets. The Welsh Government has committed to achieving a carbon neutral public sector by 2030 and to coordinating action to help other areas of the economy to make a decisive shift away from fossil fuels”
THE FUTURE GENERATIONS COMMISSIONER FOR WALES - FUTURE GENERATIONS (WALES) ACT 2015
The Environment (Wales) Act 2016 introduces a duty on Welsh Government to develop carbon budgets for Wales, and to reduce emissions by at least 80% by 2050. The Future Generations (WALES) Act 2015 has been the catalyst for higher standards of decarbonisation in Wales
OUR ETHICAL POSITION AS A PRACTICE HAS CHANGED
With the ever growing priority to decarbonise our existing construction industry Lewis Partnership have taken the responsible ethical position in setting out higher standards for both our projects and the works that we engage with, ensuring that carbon emissions consideration on all projects is a focal point in our design approach.
UK ARCHITECTS DECLARE CLIMATE AND BIODIVERSITY EMERGENCY -
We are part of 950+ Architects across the UK Industry to declare this.
ADVISING AND CONSIDERING THE IMPACT OF CARBON POSITIVE MATERIALS
Where achievable are we able to replace carbon heavy materials such as Steel and concrete with more sustainable materials such as glu-lam, and SIP panels. - By ensuring that properties meet their designed energy level needs we are able to minimize the impact on the national grid, this in turn helps reduce carbon heavy coal powering stations.
AS MUCH SUSTAINABLE TECHNOLOGY AS POSSIBLE
Integration of MVHR, ASHP/GSHP into consideration when designing as a whole system approach
RETOFIRST – RETROFITTING CAMPAIGN
Prioritizing retrofitting of existing buildings over their demolition - Almost 80% of housing that will exist in 2050 already exists
DECARBONISATION OF OUR EXISTING HOMES –
On Schemes across Carmarthenshire and Pembrokeshire - We have opportunities and a moral responsibility to ensure that new housing meets the highest levels of performance and self-sustainable.
REDUCED EMBODIED CARBON TARGETS ON CONSTRUCTION PROJECTS –
Using sustainable technologies such as Durisol Blocks to construct - This is achievable, items such as Fabric, Heating, Orientation are all under our control.
CURRENT BUILDING REGULATIONS ARENT FIT FOR PURPOSE
Constructing multiple homes that barely meet current building regulations standards is no longer acceptable where EPC ratings of E and above are acceptable,
We (the construction Industry, Clients and professionals) need to be aiming for much higher EPC ratings in construction of new buildings.
Acknowledging the performance gap (from designed to constructed) that many properties hold
D E S I G N
1 . 1 F L O O R P L A N S
Room orientation is an important design consideration of an energy-efficient home.
- South facing rooms have good sun most of the day and are ideal for the main living spaces like living, family, and dining rooms.
1 . 2 S T R U C T U R E
A possible structural frame construction could be via the use of Cross Laminated Timber . CLT is produced from sustainable softwood timber, that is made up of sections that are laid across each other at right angles before the finished material is then industrially laminated.
1 . 3 I N S U L A T I N G
Insulating the entire dwelling could be simply achieved by externally insulating the CLT with at-least 250mm insulation boards to achieve a U- Value of at-least 0.10W/m2K.
1 . 4 C L A D D I N G S Y S T E M
Sustainable cladding is necessary on sustainable housing as it affects the look of the building and also as there is so much of the cladding material going to be used, it needs to have minimal impact on the environment.
1 . 5 G L A Z I N G
Utilizing the sun by using strategically placed glazing on elevations is essential for sustainable housing. Heating through south facing windows during the winter lowers heating costs. Shading those same windows in summer lowers cooling costs.
E F F I C I E N C Y
2 . 1 H E A T R E C O V E R Y S Y S T E M
MVHR (Mechanical Ventilation with Heat Recovery) provides fresh filtered air into a building whilst retaining most of the energy that has already been used in heating the building.
2 . 2 W A T E R H E A T I N G
Water heating accounts for 15 percent of energy costs and is one of the largest energy expenses in a home.
2 . 3 H E A T I N G
Air source heat pump is a system which absorbs warmth from the outside air and transforms it into the heat for the home.
2 . 4 L I G H T I N G
Lighting contributes up to 15% of a home’s annual electricity costs and is a crucial design consideration of an energy-efficient home.
2 . 5 E N E R G Y P R O D U C T I O N
Our proposals for energy-efficient homes, strive to create as much energy as it uses by installing all of these efficient renewable energy measures:.
A more sustainable environment that reduces carbon heavy industries and becomes more for microgeneration use.
By beginning the route towards creating more sustainable communities today we can achieve the goals set for 2050.