design + energy + excellence

Tag: Sustainability (Page 1 of 8)

Form to Follow Planet

The New European Bauhaus initiative connects the European Green Deal to our living spaces. It calls on all Europeans to imagine and build together a sustainable and inclusive future that is beautiful for our eyes, minds, and souls.

The New European Bauhaus wants form to follow planet. The goal is to create a design movement integrating three dimensions: sustainability (including circularity), quality of experience (including aesthetics) and inclusion (including affordability). Showing that creativity is in finding affordable, inclusive and attractive solutions for our climate challenges.

This initiative is a creative and interdisciplinary movement in the making, and you can be part of it. The New European Bauhaus team will present the initiative and the opportunities to contribute to it. Follow this link to join the live stream on the 11th March 2021 and ask your questions.

The New European Bauhaus explained (click to download document).

Irish Architects Declare Climate & Biodiversity Emergency

Climate change is a serious global issue. The use of fossil fuels as our main source of energy generation is largely contributing to the problem. Human activity is releasing billions of tonnes of carbon dioxide (CO2) emissions into the earth’s atmosphere and adding substantially to the greenhouse effect.

Buildings and construction play a major part, accounting for nearly 40% of energy-related carbon dioxide (CO2) emissions whilst also having a significant impact on our natural habitats.

As architects, we have the ability and responsibility to provide solutions that minimize the climate impact of the structures we design.

Larry Strain

Together with our clients, Architects will need to commission and design buildings, cities and infrastructures as indivisible components of a larger, constantly regenerating and self-sustaining system.

The research and technology exist for Architects to begin that transformation now, but what has been lacking is collective will. Recognising this, and as one of the founding signatories of Architects Declare , Isabel Barros Architects are committing to strengthen our working practices to create architecture and urbanism that has a more positive impact on the world around us.

This collective effort seeks to:

  • Raise awareness of the climate and biodiversity emergencies and the urgent need for action amongst our clients and supply chains.
  • Advocate for faster change in our industry towards regenerative design practices and a higher Governmental funding priority to support this.
  • Establish climate and biodiversity mitigation principles as the key measure of our industry’s success: demonstrated through awards, prizes and listings.
  • Share knowledge and research to that end on an open source basis.
  • Evaluate all new projects against the aspiration to contribute positively to mitigating climate breakdown, and encourage our clients to adopt this approach.
  • Upgrade existing buildings for extended use as a more carbon efficient alternative to demolition and new build whenever there is a viable choice.
  • Include life cycle costing, whole life carbon modelling and post occupancy evaluation as part of our basic scope of work, to reduce both embodied and operational resource use.
  • Adopt more regenerative design principles in our studios, with the aim of designing architecture and urbanism that goes beyond the standard of net zero carbon in use.
  • Collaborate with engineers, contractors and clients to further reduce construction waste.
  • Accelerate the shift to low embodied carbon materials in all our work.
  • Minimise wasteful use of resources in architecture and urban planning, both in quantum and in detail

The make-up of greenhouse gas emissions differs in Ireland from most other European countries because of the role Ireland plays in supplying meat and dairy products across Europe and the world. Agriculture (largely through methane associated with our herds) makes up 32% of emissions from sectors in Ireland compared to just 11% in the rest of Europe. However, in all other major sectors (Electricity, Buildings, Transport, and Waste Management) we also have a higher carbon footprint per head of population.

Ireland faces a number of challenges in reducing emissions from our buildings. Our homes use 7% more energy than the EU average and emit 58% more carbon dioxide equivalent. Our buildings are 70% reliant on fossil fuels, including oil fired boilers; over 80% of our homes and other buildings assessed for their BER have a rating of C or worse; and the current annual retrofit activity for existing stock is far too limited (approximately 23,000, mainly shallow, retrofits).

Climate Action Plan 2019 , Government of Ireland

We are aware that for everyone working in the construction industry a paradigm shift in our behaviour is required in order to achieve a substantial reduction of the worldwide CO2 emissions. We will do our best to support this shift while encouraging our clients to also adopt this approach.

Isabel Barros Architects in Wexford are committed to face these challenges by fundamentally rethinking the way we design, construct and operate buildings.

As of January 2020 a total of 69 Irish architects/architectural practices have signed the declaration. We hope that many more will join us in making this commitment. Please visit https://ie.architectsdeclare.com/ to join.

Better architecture for a better world!

All New Homes Will Be Nearly Zero Energy Buildings (NZEB)

Amendments to Part L of the Building Regulations (relating to the conservation of fuel and energy in dwellings) will come into effect on 01 November 2019.

All new homes will have a typical Building Energy Rating (BER) of A2 and will be 70% more energy efficient and emit 70% less carbon dioxide than 2005 performance levels.

What is a Nearly-Zero Energy Building (NZEB)?

‘Nearly zero-energy building’ means a building that has a very high energy performance. The nearly zero or very low amount of energy required should be covered to a very significant extent by energy from renewable sources, including energy from renewable sources produced on-site or nearby.

Are there any exceptions to the new regulations?

Yes, but only if planning approval or permission has been applied for on or before 31st October 2019 and substantial work has been completed by 31st October 2020.

“Substantial work has been completed” means that the structure of the external walls of the dwelling has been erected.

 What are the key changes to TGD L Dwellings 2019?

  • MPEPC (Maximum Permitted Energy Performance Coefficient)=0.30, in order to achieve the acceptable primary energy consumption rate.
  • MPCPC (Maximum Permitted Carbon Performance Coefficient)=0.35, to demonstrate that an acceptable CO2 emission rate has been achieved.
  • Where a dwelling undergoes major renovation, the energy performance of the whole dwelling should be improved to Cost Optimal level insofar as this is technically, functionally and economically feasible.
  • Introduction of a Renewable Energy Ratio (RER) of 20%.
  • Reduction of air permeability backstop from 7m3 /hr/m2 to 5m3 /hr/m2.
  • Table 1- Reduction of wall and floor backstop U-Value from 0.21W/m2K to 0.18 W/m2K.
  • Table 1- Reduction of window backstop U-Value from 1.6 W/m2K to 1.4 W/m2K.
  • Inclusion of guidance to avoid overheating in dwellings.
  • Par 1.3.2.4 – removal of variation of U-Value with percentage glazing.
  • Introduction of calculation of Ru value for corridors in apartments.

How can compliance be achieved?

The correct specifications need to be prepared by your Architect to your specific project. Compliance is then demonstrated using the DEAP (Dwelling Energy Assessment Procedure) software.

Below is an example prepared by the Department of Housing, Planning and Local Government for a semi-detached dwelling with 126 sq.m. and with heat pump for space heating and continuous mechanical extract ventilation.

NZEB example specification
Semi-detached dwelling with 126 sq.m. and with heat pump for space heating and continuous mechanical extract ventilation

A nearly zero energy buildings (NZEB) future – Minister English reminds construction sector to be prepared for new building regulations on energy efficiency

What’s All the Fuss About the Revised Energy Performance of Buildings Directive

Overview of Key Changes to TGD L – Dwellings 2019

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